diff --git a/api-ref/source/flavors.inc b/api-ref/source/flavors.inc
index dab61b2a97..0216ce2983 100644
--- a/api-ref/source/flavors.inc
+++ b/api-ref/source/flavors.inc
@@ -108,9 +108,9 @@ Response
    - extra_specs: extra_specs_2_61
 
 
-**Example Create Flavor (v2.61)**
+**Example Create Flavor (v2.75)**
 
-.. literalinclude:: ../../doc/api_samples/flavor-manage/v2.61/flavor-create-post-resp.json
+.. literalinclude:: ../../doc/api_samples/flavor-manage/v2.75/flavor-create-post-resp.json
    :language: javascript
 
 List Flavors With Details
@@ -158,9 +158,9 @@ Response
    - os-flavor-access:is_public: flavor_is_public
    - extra_specs: extra_specs_2_61
 
-**Example List Flavors With Details (v2.61)**
+**Example List Flavors With Details (v2.75)**
 
-.. literalinclude:: ../../doc/api_samples/flavors/v2.61/flavors-detail-resp.json
+.. literalinclude:: ../../doc/api_samples/flavors/v2.75/flavors-detail-resp.json
    :language: javascript
 
 Show Flavor Details
@@ -201,9 +201,9 @@ Response
    - os-flavor-access:is_public: flavor_is_public
    - extra_specs: extra_specs_2_61
 
-**Example Show Flavor Details (v2.61)**
+**Example Show Flavor Details (v2.75)**
 
-.. literalinclude:: ../../doc/api_samples/flavors/v2.61/flavor-get-resp.json
+.. literalinclude:: ../../doc/api_samples/flavors/v2.75/flavor-get-resp.json
    :language: javascript
 
 Update Flavor Description
@@ -258,9 +258,9 @@ Response
    - extra_specs: extra_specs_2_61
 
 
-**Example Update Flavor Description (v2.61)**
+**Example Update Flavor Description (v2.75)**
 
-.. literalinclude:: ../../doc/api_samples/flavor-manage/v2.61/flavor-update-resp.json
+.. literalinclude:: ../../doc/api_samples/flavor-manage/v2.75/flavor-update-resp.json
    :language: javascript
 
 Delete Flavor
diff --git a/api-ref/source/parameters.yaml b/api-ref/source/parameters.yaml
index 8626913169..cb91c6acd0 100644
--- a/api-ref/source/parameters.yaml
+++ b/api-ref/source/parameters.yaml
@@ -3074,6 +3074,8 @@ flavor_swap:
     The size of a dedicated swap disk that will be allocated, in
     MiB. If 0 (the default), no dedicated swap disk will be created.
     Currently, the empty string ('') is used to represent 0.
+    As of microversion 2.75 default return value of swap is 0
+    instead of empty string.
   in: body
   required: true
   type: integer
@@ -3519,6 +3521,20 @@ host_status_body_in:
   in: body
   required: false
   type: string
+host_status_update_rebuild:
+  description: |
+    The host status. Values where next value in list can override the previous:
+    - ``UP`` if nova-compute up.
+    - ``UNKNOWN`` if nova-compute not reported by servicegroup driver.
+    - ``DOWN`` if nova-compute forced down.
+    - ``MAINTENANCE`` if nova-compute is disabled.
+    - Empty string indicates there is no host for server.
+    This attribute appears in the response only if the policy permits.
+    By default, only administrators can get this parameter.
+  in: body
+  required: false
+  type: string
+  min_version: 2.75
 host_zone:
   description: |
     The available zone of the host.
@@ -3650,8 +3666,10 @@ hypervisor_os_diagnostics:
 hypervisor_servers:
   description: |
     A list of ``server`` objects.
+    This field has become mandatory in microversion 2.75. If no servers is on hypervisor
+    then empty list is returned.
   in: body
-  required: false
+  required: true
   type: array
   min_version: 2.53
 hypervisor_servers_name:
@@ -4140,6 +4158,13 @@ key_name_resp:
   in: body
   required: true
   type: string
+key_name_resp_update:
+  description: |
+    The name of associated key pair, if any.
+  in: body
+  required: true
+  type: string
+  min_version: 2.75
 key_pairs: &key_pairs
   description: |
     The number of allowed key pairs for each user.
@@ -4730,6 +4755,13 @@ name_server_group:
   in: body
   required: true
   type: string
+name_update_rebuild:
+  description: |
+    The security group name.
+  in: body
+  required: true
+  type: string
+  min_version: 2.75
 namespace:
   description: |
     A URL pointing to the namespace for this extension.
@@ -4970,6 +5002,13 @@ OS-EXT-AZ:availability_zone_optional:
   in: body
   required: false
   type: string
+OS-EXT-AZ:availability_zone_update_rebuild:
+  description: |
+    The availability zone name.
+  in: body
+  required: true
+  type: string
+  min_version: 2.75
 OS-EXT-SRV-ATTR:host:
   description: |
     The name of the compute host on which this instance is running.
@@ -4977,6 +5016,14 @@ OS-EXT-SRV-ATTR:host:
   in: body
   required: true
   type: string
+OS-EXT-SRV-ATTR:host_update_rebuild:
+  description: |
+    The name of the compute host on which this instance is running.
+    Appears in the response for administrative users only.
+  in: body
+  required: true
+  type: string
+  min_version: 2.75
 OS-EXT-SRV-ATTR:hypervisor_hostname:
   description: |
     The hypervisor host name provided by the Nova virt driver. For the Ironic driver,
@@ -4984,6 +5031,14 @@ OS-EXT-SRV-ATTR:hypervisor_hostname:
   in: body
   required: true
   type: string
+OS-EXT-SRV-ATTR:hypervisor_hostname_update_rebuild:
+  description: |
+    The hypervisor host name provided by the Nova virt driver. For the Ironic driver,
+    it is the Ironic node uuid. Appears in the response for administrative users only.
+  in: body
+  required: true
+  type: string
+  min_version: 2.75
 OS-EXT-SRV-ATTR:instance_name:
   description: |
     The instance name. The Compute API generates the instance name from the instance
@@ -4991,6 +5046,14 @@ OS-EXT-SRV-ATTR:instance_name:
   in: body
   required: true
   type: string
+OS-EXT-SRV-ATTR:instance_name_update_rebuild:
+  description: |
+    The instance name. The Compute API generates the instance name from the instance
+    name template. Appears in the response for administrative users only.
+  in: body
+  required: true
+  type: string
+  min_version: 2.75
 OS-EXT-STS:power_state:
   description: |
     The power state of the instance. This is an enum value that is mapped as::
@@ -5004,18 +5067,46 @@ OS-EXT-STS:power_state:
   in: body
   required: true
   type: integer
+OS-EXT-STS:power_state_update_rebuild:
+  description: |
+    The power state of the instance. This is an enum value that is mapped as::
+
+      0: NOSTATE
+      1: RUNNING
+      3: PAUSED
+      4: SHUTDOWN
+      6: CRASHED
+      7: SUSPENDED
+  in: body
+  required: true
+  type: integer
+  min_version: 2.75
 OS-EXT-STS:task_state:
   description: |
     The task state of the instance.
   in: body
   required: true
   type: string
+OS-EXT-STS:task_state_update_rebuild:
+  description: |
+    The task state of the instance.
+  in: body
+  required: true
+  type: string
+  min_version: 2.75
 OS-EXT-STS:vm_state:
   description: |
     The VM state.
   in: body
   required: true
   type: string
+OS-EXT-STS:vm_state_update_rebuild:
+  description: |
+    The VM state.
+  in: body
+  required: true
+  type: string
+  min_version: 2.75
 os-extended-volumes:volumes_attached:
   description: |
     The attached volumes, if any.
@@ -5032,12 +5123,36 @@ os-extended-volumes:volumes_attached.delete_on_termination:
   required: true
   type: boolean
   min_version: 2.3
+os-extended-volumes:volumes_attached.delete_on_termination_update_rebuild:
+  description: |
+    A flag indicating if the attached volume will be deleted
+    when the server is deleted. By default this is False and
+    can only be set when creating a volume while creating a
+    server, which is commonly referred to as boot from volume.
+  in: body
+  required: true
+  type: boolean
+  min_version: 2.75
 os-extended-volumes:volumes_attached.id:
   description: |
     The attached volume ID.
   in: body
   required: true
   type: string
+os-extended-volumes:volumes_attached.id_update_rebuild:
+  description: |
+    The attached volume ID.
+  in: body
+  required: true
+  type: string
+  min_version: 2.75
+os-extended-volumes:volumes_attached_update_rebuild:
+  description: |
+    The attached volumes, if any.
+  in: body
+  required: true
+  type: array
+  min_version: 2.75
 os-getConsoleOutput:
   description: |
     The action to get console output of the server.
@@ -5151,6 +5266,24 @@ OS-SRV-USG:launched_at:
   in: body
   required: true
   type: string
+OS-SRV-USG:launched_at_update_rebuild:
+  description: |
+    The date and time when the server was launched.
+
+    The date and time stamp format is `ISO 8601 <https://en.wikipedia.org/wiki/ISO_8601>`_:
+
+    ::
+
+      CCYY-MM-DDThh:mm:ss±hh:mm
+
+    For example, ``2015-08-27T09:49:58-05:00``.
+
+    The ``hh±:mm`` value, if included, is the time zone as an offset from UTC.
+    If the ``deleted_at`` date and time stamp is not set, its value is ``null``.
+  in: body
+  required: true
+  type: string
+  min_version: 2.75
 OS-SRV-USG:terminated_at:
   description: |
     The date and time when the server was deleted.
@@ -5167,6 +5300,23 @@ OS-SRV-USG:terminated_at:
   in: body
   required: true
   type: string
+OS-SRV-USG:terminated_at_update_rebuild:
+  description: |
+    The date and time when the server was deleted.
+
+    The date and time stamp format is `ISO 8601 <https://en.wikipedia.org/wiki/ISO_8601>`_:
+
+    ::
+
+      CCYY-MM-DDThh:mm:ss±hh:mm
+
+    For example, ``2015-08-27T09:49:58-05:00``.
+    The ``±hh:mm`` value, if included, is the time zone as an offset from UTC.
+    If the ``deleted_at`` date and time stamp is not set, its value is ``null``.
+  in: body
+  required: true
+  type: string
+  min_version: 2.75
 os-start:
   description: |
     The action to start a stopped server.
@@ -5852,6 +6002,13 @@ security_groups_obj:
   in: body
   required: true
   type: array
+security_groups_obj_update_rebuild:
+  description: |
+    One or more security groups objects.
+  in: body
+  required: true
+  type: array
+  min_version: 2.75
 security_groups_quota:
   description: |
     The number of allowed security groups for each tenant.
@@ -6002,6 +6159,14 @@ server_hostname:
     The hostname set on the instance when it is booted.
     By default, it appears in the response for administrative users only.
   min_version: 2.3
+server_hostname_update_rebuild:
+  in: body
+  required: false
+  type: string
+  description: |
+    The hostname set on the instance when it is booted.
+    By default, it appears in the response for administrative users only.
+  min_version: 2.75
 # This is the hypervisor_hostname in a POST (create instance) request body.
 server_hypervisor_hostname_create:
   description: |
@@ -6032,6 +6197,14 @@ server_kernel_id:
     The UUID of the kernel image when using an AMI. Will be null if not.
     By default, it appears in the response for administrative users only.
   min_version: 2.3
+server_kernel_id_update_rebuild:
+  in: body
+  required: false
+  type: string
+  description: |
+    The UUID of the kernel image when using an AMI. Will be null if not.
+    By default, it appears in the response for administrative users only.
+  min_version: 2.75
 server_launch_index:
   in: body
   required: false
@@ -6041,6 +6214,15 @@ server_launch_index:
     sequence in which the servers were launched.
     By default, it appears in the response for administrative users only.
   min_version: 2.3
+server_launch_index_update_rebuild:
+  in: body
+  required: false
+  type: integer
+  description: |
+    When servers are launched via multiple create, this is the
+    sequence in which the servers were launched.
+    By default, it appears in the response for administrative users only.
+  min_version: 2.75
 server_links:
   description: |
     Links pertaining to the server. See `API Guide / Links and
@@ -6070,6 +6252,14 @@ server_ramdisk_id:
     The UUID of the ramdisk image when using an AMI. Will be null if not.
     By default, it appears in the response for administrative users only.
   min_version: 2.3
+server_ramdisk_id_update_rebuild:
+  in: body
+  required: false
+  type: string
+  description: |
+    The UUID of the ramdisk image when using an AMI. Will be null if not.
+    By default, it appears in the response for administrative users only.
+  min_version: 2.75
 server_reservation_id:
   in: body
   required: false
@@ -6080,6 +6270,16 @@ server_reservation_id:
     create, that will all have the same reservation_id.
     By default, it appears in the response for administrative users only.
   min_version: 2.3
+server_reservation_id_update_rebuild:
+  in: body
+  required: false
+  type: string
+  description: |
+    The reservation id for the server. This is an id that can
+    be useful in tracking groups of servers created with multiple
+    create, that will all have the same reservation_id.
+    By default, it appears in the response for administrative users only.
+  min_version: 2.75
 server_root_device_name:
   in: body
   required: false
@@ -6088,6 +6288,14 @@ server_root_device_name:
     The root device name for the instance
     By default, it appears in the response for administrative users only.
   min_version: 2.3
+server_root_device_name_update_rebuild:
+  in: body
+  required: false
+  type: string
+  description: |
+    The root device name for the instance
+    By default, it appears in the response for administrative users only.
+  min_version: 2.75
 server_status:
   description: |
     The server status.
@@ -6169,6 +6377,14 @@ server_user_data:
     The user_data the instance was created with.
     By default, it appears in the response for administrative users only.
   min_version: 2.3
+server_user_data_update:
+  in: body
+  required: false
+  type: string
+  description: |
+    The user_data the instance was created with.
+    By default, it appears in the response for administrative users only.
+  min_version: 2.75
 server_uuid:
   description: |
     The UUID of the server instance to which the API dispatches the event.  You must
diff --git a/api-ref/source/servers-actions.inc b/api-ref/source/servers-actions.inc
index 4e162d2cf4..d118073d40 100644
--- a/api-ref/source/servers-actions.inc
+++ b/api-ref/source/servers-actions.inc
@@ -634,10 +634,31 @@ Response
   - trusted_image_certificates: server_trusted_image_certificates_resp
   - server_groups: server_groups_2_71
   - locked_reason: locked_reason_resp
+  - OS-EXT-AZ:availability_zone: OS-EXT-AZ:availability_zone_update_rebuild
+  - OS-EXT-SRV-ATTR:host: OS-EXT-SRV-ATTR:host_update_rebuild
+  - OS-EXT-SRV-ATTR:hypervisor_hostname: OS-EXT-SRV-ATTR:hypervisor_hostname_update_rebuild
+  - OS-EXT-SRV-ATTR:instance_name: OS-EXT-SRV-ATTR:instance_name_update_rebuild
+  - OS-EXT-STS:power_state: OS-EXT-STS:power_state_update_rebuild
+  - OS-EXT-STS:task_state: OS-EXT-STS:task_state_update_rebuild
+  - OS-EXT-STS:vm_state: OS-EXT-STS:vm_state_update_rebuild
+  - OS-EXT-SRV-ATTR:hostname: server_hostname_update_rebuild
+  - OS-EXT-SRV-ATTR:reservation_id: server_reservation_id_update_rebuild
+  - OS-EXT-SRV-ATTR:launch_index: server_launch_index_update_rebuild
+  - OS-EXT-SRV-ATTR:kernel_id: server_kernel_id_update_rebuild
+  - OS-EXT-SRV-ATTR:ramdisk_id: server_ramdisk_id_update_rebuild
+  - OS-EXT-SRV-ATTR:root_device_name: server_root_device_name_update_rebuild
+  - os-extended-volumes:volumes_attached: os-extended-volumes:volumes_attached_update_rebuild
+  - os-extended-volumes:volumes_attached.id: os-extended-volumes:volumes_attached.id_update_rebuild
+  - os-extended-volumes:volumes_attached.delete_on_termination: os-extended-volumes:volumes_attached.delete_on_termination_update_rebuild
+  - OS-SRV-USG:launched_at: OS-SRV-USG:launched_at_update_rebuild
+  - OS-SRV-USG:terminated_at: OS-SRV-USG:terminated_at_update_rebuild
+  - security_groups: security_groups_obj_update_rebuild
+  - security_group.name: name_update_rebuild
+  - host_status: host_status_update_rebuild
 
-**Example Rebuild Server (rebuild Action) (v2.73)**
+**Example Rebuild Server (rebuild Action) (v2.75)**
 
-.. literalinclude:: ../../doc/api_samples/servers/v2.73/server-action-rebuild-resp.json
+.. literalinclude:: ../../doc/api_samples/servers/v2.75/server-action-rebuild-resp.json
    :language: javascript
 
 Remove (Disassociate) Floating Ip (removeFloatingIp Action) (DEPRECATED)
diff --git a/api-ref/source/servers.inc b/api-ref/source/servers.inc
index d7779b7acd..2aa31f0b6f 100644
--- a/api-ref/source/servers.inc
+++ b/api-ref/source/servers.inc
@@ -877,10 +877,33 @@ Response
   - trusted_image_certificates: server_trusted_image_certificates_resp
   - server_groups: server_groups_2_71
   - locked_reason: locked_reason_resp
+  - OS-EXT-AZ:availability_zone: OS-EXT-AZ:availability_zone_update_rebuild
+  - OS-EXT-SRV-ATTR:host: OS-EXT-SRV-ATTR:host_update_rebuild
+  - OS-EXT-SRV-ATTR:hypervisor_hostname: OS-EXT-SRV-ATTR:hypervisor_hostname_update_rebuild
+  - OS-EXT-SRV-ATTR:instance_name: OS-EXT-SRV-ATTR:instance_name_update_rebuild
+  - OS-EXT-STS:power_state: OS-EXT-STS:power_state_update_rebuild
+  - OS-EXT-STS:task_state: OS-EXT-STS:task_state_update_rebuild
+  - OS-EXT-STS:vm_state: OS-EXT-STS:vm_state_update_rebuild
+  - OS-EXT-SRV-ATTR:hostname: server_hostname_update_rebuild
+  - OS-EXT-SRV-ATTR:reservation_id: server_reservation_id_update_rebuild
+  - OS-EXT-SRV-ATTR:launch_index: server_launch_index_update_rebuild
+  - OS-EXT-SRV-ATTR:kernel_id: server_kernel_id_update_rebuild
+  - OS-EXT-SRV-ATTR:ramdisk_id: server_ramdisk_id_update_rebuild
+  - OS-EXT-SRV-ATTR:root_device_name: server_root_device_name_update_rebuild
+  - OS-EXT-SRV-ATTR:user_data: server_user_data_update
+  - os-extended-volumes:volumes_attached: os-extended-volumes:volumes_attached_update_rebuild
+  - os-extended-volumes:volumes_attached.id: os-extended-volumes:volumes_attached.id_update_rebuild
+  - os-extended-volumes:volumes_attached.delete_on_termination: os-extended-volumes:volumes_attached.delete_on_termination_update_rebuild
+  - OS-SRV-USG:launched_at: OS-SRV-USG:launched_at_update_rebuild
+  - OS-SRV-USG:terminated_at: OS-SRV-USG:terminated_at_update_rebuild
+  - security_groups: security_groups_obj_update_rebuild
+  - security_group.name: name_update_rebuild
+  - host_status: host_status_update_rebuild
+  - key_name: key_name_resp_update
 
-**Example Update Server (2.73)**
+**Example Update Server (2.75)**
 
-.. literalinclude:: ../../doc/api_samples/servers/v2.73/server-update-resp.json
+.. literalinclude:: ../../doc/api_samples/servers/v2.75/server-update-resp.json
    :language: javascript
 
 Delete Server
diff --git a/doc/api_samples/flavor-manage/v2.75/flavor-create-post-req.json b/doc/api_samples/flavor-manage/v2.75/flavor-create-post-req.json
new file mode 100644
index 0000000000..0d9926d720
--- /dev/null
+++ b/doc/api_samples/flavor-manage/v2.75/flavor-create-post-req.json
@@ -0,0 +1,11 @@
+{
+    "flavor": {
+        "name": "test_flavor",
+        "ram": 1024,
+        "vcpus": 2,
+        "disk": 10,
+        "id": "10",
+        "rxtx_factor": 2.0,
+        "description": "test description"
+    }
+}
diff --git a/doc/api_samples/flavor-manage/v2.75/flavor-create-post-resp.json b/doc/api_samples/flavor-manage/v2.75/flavor-create-post-resp.json
new file mode 100644
index 0000000000..49dfd0c082
--- /dev/null
+++ b/doc/api_samples/flavor-manage/v2.75/flavor-create-post-resp.json
@@ -0,0 +1,26 @@
+{
+    "flavor": {
+        "OS-FLV-DISABLED:disabled": false,
+        "disk": 10,
+        "OS-FLV-EXT-DATA:ephemeral": 0,
+        "os-flavor-access:is_public": true,
+        "id": "10",
+        "links": [
+            {
+                "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/10",
+                "rel": "self"
+            },
+            {
+                "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/10",
+                "rel": "bookmark"
+            }
+        ],
+        "name": "test_flavor",
+        "ram": 1024,
+        "swap": 0,
+        "rxtx_factor": 2.0,
+        "vcpus": 2,
+        "description": "test description",
+        "extra_specs": {}
+    }
+}
diff --git a/doc/api_samples/flavor-manage/v2.75/flavor-update-req.json b/doc/api_samples/flavor-manage/v2.75/flavor-update-req.json
new file mode 100644
index 0000000000..93c8e1e8ab
--- /dev/null
+++ b/doc/api_samples/flavor-manage/v2.75/flavor-update-req.json
@@ -0,0 +1,5 @@
+{
+    "flavor": {
+        "description": "updated description"
+    }
+}
diff --git a/doc/api_samples/flavor-manage/v2.75/flavor-update-resp.json b/doc/api_samples/flavor-manage/v2.75/flavor-update-resp.json
new file mode 100644
index 0000000000..4e92b10582
--- /dev/null
+++ b/doc/api_samples/flavor-manage/v2.75/flavor-update-resp.json
@@ -0,0 +1,26 @@
+{
+    "flavor": {
+        "OS-FLV-DISABLED:disabled": false,
+        "disk": 1,
+        "OS-FLV-EXT-DATA:ephemeral": 0,
+        "os-flavor-access:is_public": true,
+        "id": "1",
+        "links": [
+            {
+                "href": "http://openstack.example.com/v2.1/6f70656e737461636b20342065766572/flavors/1",
+                "rel": "self"
+            },
+            {
+                "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/1",
+                "rel": "bookmark"
+            }
+        ],
+        "name": "m1.tiny",
+        "ram": 512,
+        "swap": 0,
+        "vcpus": 1,
+        "rxtx_factor": 1.0,
+        "description": "updated description",
+        "extra_specs": {}
+    }
+}
diff --git a/doc/api_samples/flavors/v2.75/flavor-get-resp.json b/doc/api_samples/flavors/v2.75/flavor-get-resp.json
new file mode 100644
index 0000000000..e5581409f9
--- /dev/null
+++ b/doc/api_samples/flavors/v2.75/flavor-get-resp.json
@@ -0,0 +1,29 @@
+{
+    "flavor": {
+        "OS-FLV-DISABLED:disabled": false,
+        "disk": 20,
+        "OS-FLV-EXT-DATA:ephemeral": 0,
+        "os-flavor-access:is_public": true,
+        "id": "7",
+        "links": [
+            {
+                "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/7",
+                "rel": "self"
+            },
+            {
+                "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/7",
+                "rel": "bookmark"
+            }
+        ],
+        "name": "m1.small.description",
+        "ram": 2048,
+        "swap": 0,
+        "vcpus": 1,
+        "rxtx_factor": 1.0,
+        "description": "test description",
+        "extra_specs": {
+            "key1": "value1",
+            "key2": "value2"
+        }
+    }
+}
diff --git a/doc/api_samples/flavors/v2.75/flavors-detail-resp.json b/doc/api_samples/flavors/v2.75/flavors-detail-resp.json
new file mode 100644
index 0000000000..58ca0e44ba
--- /dev/null
+++ b/doc/api_samples/flavors/v2.75/flavors-detail-resp.json
@@ -0,0 +1,178 @@
+{
+    "flavors": [
+        {
+            "OS-FLV-DISABLED:disabled": false,
+            "disk": 1,
+            "OS-FLV-EXT-DATA:ephemeral": 0,
+            "os-flavor-access:is_public": true,
+            "id": "1",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/1",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/1",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.tiny",
+            "ram": 512,
+            "swap": 0,
+            "vcpus": 1,
+            "rxtx_factor": 1.0,
+            "description": null,
+            "extra_specs": {}
+        },
+        {
+            "OS-FLV-DISABLED:disabled": false,
+            "disk": 20,
+            "OS-FLV-EXT-DATA:ephemeral": 0,
+            "os-flavor-access:is_public": true,
+            "id": "2",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/2",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/2",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.small",
+            "ram": 2048,
+            "swap": 0,
+            "vcpus": 1,
+            "rxtx_factor": 1.0,
+            "description": null,
+            "extra_specs": {}
+        },
+        {
+            "OS-FLV-DISABLED:disabled": false,
+            "disk": 40,
+            "OS-FLV-EXT-DATA:ephemeral": 0,
+            "os-flavor-access:is_public": true,
+            "id": "3",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/3",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/3",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.medium",
+            "ram": 4096,
+            "swap": 0,
+            "vcpus": 2,
+            "rxtx_factor": 1.0,
+            "description": null,
+            "extra_specs": {}
+        },
+        {
+            "OS-FLV-DISABLED:disabled": false,
+            "disk": 80,
+            "OS-FLV-EXT-DATA:ephemeral": 0,
+            "os-flavor-access:is_public": true,
+            "id": "4",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/4",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/4",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.large",
+            "ram": 8192,
+            "swap": 0,
+            "vcpus": 4,
+            "rxtx_factor": 1.0,
+            "description": null,
+            "extra_specs": {}
+        },
+        {
+            "OS-FLV-DISABLED:disabled": false,
+            "disk": 160,
+            "OS-FLV-EXT-DATA:ephemeral": 0,
+            "os-flavor-access:is_public": true,
+            "id": "5",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/5",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/5",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.xlarge",
+            "ram": 16384,
+            "swap": 0,
+            "vcpus": 8,
+            "rxtx_factor": 1.0,
+            "description": null,
+            "extra_specs": {}
+        },
+        {
+            "OS-FLV-DISABLED:disabled": false,
+            "disk": 1,
+            "OS-FLV-EXT-DATA:ephemeral": 0,
+            "os-flavor-access:is_public": true,
+            "id": "6",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/6",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/6",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.tiny.specs",
+            "ram": 512,
+            "swap": 0,
+            "vcpus": 1,
+            "rxtx_factor": 1.0,
+            "description": null,
+            "extra_specs": {
+                "hw:mem_page_size": "2048",
+                "hw:cpu_policy": "dedicated"
+            }
+        },
+        {
+            "OS-FLV-DISABLED:disabled": false,
+            "disk": 20,
+            "OS-FLV-EXT-DATA:ephemeral": 0,
+            "os-flavor-access:is_public": true,
+            "id": "7",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/7",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/7",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.small.description",
+            "ram": 2048,
+            "swap": 0,
+            "vcpus": 1,
+            "rxtx_factor": 1.0,
+            "description": "test description",
+            "extra_specs": {
+                "key1": "value1",
+                "key2": "value2"
+            }
+        }
+    ]
+}
diff --git a/doc/api_samples/flavors/v2.75/flavors-list-resp.json b/doc/api_samples/flavors/v2.75/flavors-list-resp.json
new file mode 100644
index 0000000000..f368ed5c66
--- /dev/null
+++ b/doc/api_samples/flavors/v2.75/flavors-list-resp.json
@@ -0,0 +1,109 @@
+{
+    "flavors": [
+        {
+            "id": "1",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/1",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/1",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.tiny",
+            "description": null
+        },
+        {
+            "id": "2",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/2",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/2",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.small",
+            "description": null
+        },
+        {
+            "id": "3",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/3",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/3",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.medium",
+            "description": null
+        },
+        {
+            "id": "4",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/4",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/4",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.large",
+            "description": null
+        },
+        {
+            "id": "5",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/5",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/5",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.xlarge",
+            "description": null
+        },
+        {
+            "id": "6",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/6",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/6",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.tiny.specs",
+            "description": null
+        },
+        {
+            "id": "7",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/flavors/7",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/7",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.small.description",
+            "description": "test description"
+        }
+    ]
+}
diff --git a/doc/api_samples/servers/v2.75/server-action-rebuild-resp.json b/doc/api_samples/servers/v2.75/server-action-rebuild-resp.json
new file mode 100644
index 0000000000..c50a17834f
--- /dev/null
+++ b/doc/api_samples/servers/v2.75/server-action-rebuild-resp.json
@@ -0,0 +1,89 @@
+{
+    "server": {
+        "OS-DCF:diskConfig": "AUTO",
+        "OS-EXT-AZ:availability_zone": "us-west",
+        "OS-EXT-SRV-ATTR:host": "compute",
+        "OS-EXT-SRV-ATTR:hostname": "new-server-test",
+        "OS-EXT-SRV-ATTR:hypervisor_hostname": "fake-mini",
+        "OS-EXT-SRV-ATTR:instance_name": "instance-00000001",
+        "OS-EXT-SRV-ATTR:kernel_id": "",
+        "OS-EXT-SRV-ATTR:launch_index": 0,
+        "OS-EXT-SRV-ATTR:ramdisk_id": "",
+        "OS-EXT-SRV-ATTR:reservation_id": "r-t61j9da6",
+        "OS-EXT-SRV-ATTR:root_device_name": "/dev/sda",
+        "OS-EXT-STS:power_state": 1,
+        "OS-EXT-STS:task_state": null,
+        "OS-EXT-STS:vm_state": "active",
+        "OS-SRV-USG:launched_at": "2019-04-23T15:19:10.855016",
+        "OS-SRV-USG:terminated_at": null,
+        "accessIPv4": "1.2.3.4",
+        "accessIPv6": "80fe::",
+        "addresses": {
+            "private": [
+                {
+                    "OS-EXT-IPS-MAC:mac_addr": "aa:bb:cc:dd:ee:ff",
+                    "OS-EXT-IPS:type": "fixed",
+                    "addr": "192.168.0.3",
+                    "version": 4
+                }
+            ]
+        },
+        "adminPass": "seekr3t",
+        "config_drive": "",
+        "created": "2019-04-23T17:10:22Z",
+        "description": null,
+        "flavor": {
+            "disk": 1,
+            "ephemeral": 0,
+            "extra_specs": {},
+            "original_name": "m1.tiny",
+            "ram": 512,
+            "swap": 0,
+            "vcpus": 1
+        },
+        "hostId": "2091634baaccdc4c5a1d57069c833e402921df696b7f970791b12ec6",
+        "host_status": "UP",
+        "id": "0c37a84a-c757-4f22-8c7f-0bf8b6970886",
+        "image": {
+            "id": "70a599e0-31e7-49b7-b260-868f441e862b",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/images/70a599e0-31e7-49b7-b260-868f441e862b",
+                    "rel": "bookmark"
+                }
+            ]
+        },
+        "key_name": null,
+        "links": [
+            {
+                "href": "http://openstack.example.com/v2.1/6f70656e737461636b20342065766572/servers/0c37a84a-c757-4f22-8c7f-0bf8b6970886",
+                "rel": "self"
+            },
+            {
+                "href": "http://openstack.example.com/6f70656e737461636b20342065766572/servers/0c37a84a-c757-4f22-8c7f-0bf8b6970886",
+                "rel": "bookmark"
+            }
+        ],
+        "locked": false,
+        "locked_reason": null,
+        "metadata": {
+            "meta_var": "meta_val"
+        },
+        "name": "foobar",
+        "os-extended-volumes:volumes_attached": [],
+        "progress": 0,
+        "security_groups": [
+            {
+                "name": "default"
+            }
+        ],
+        "server_groups": [],
+        "status": "ACTIVE",
+        "tags": [],
+        "tenant_id": "6f70656e737461636b20342065766572",
+        "trusted_image_certificates": null,
+        "updated": "2019-04-23T17:10:24Z",
+        "user_data": "ZWNobyAiaGVsbG8gd29ybGQi",
+        "user_id": "fake"
+    }
+}
diff --git a/doc/api_samples/servers/v2.75/server-action-rebuild.json b/doc/api_samples/servers/v2.75/server-action-rebuild.json
new file mode 100644
index 0000000000..f1431a0506
--- /dev/null
+++ b/doc/api_samples/servers/v2.75/server-action-rebuild.json
@@ -0,0 +1,14 @@
+{
+    "rebuild" : {
+        "accessIPv4" : "1.2.3.4",
+        "accessIPv6" : "80fe::",
+        "OS-DCF:diskConfig": "AUTO",
+        "imageRef" : "70a599e0-31e7-49b7-b260-868f441e862b",
+        "name" : "foobar",
+        "adminPass" : "seekr3t",
+        "metadata" : {
+            "meta_var" : "meta_val"
+        },
+        "user_data": "ZWNobyAiaGVsbG8gd29ybGQi"
+    }
+}
\ No newline at end of file
diff --git a/doc/api_samples/servers/v2.75/server-update-req.json b/doc/api_samples/servers/v2.75/server-update-req.json
new file mode 100644
index 0000000000..1341355ce5
--- /dev/null
+++ b/doc/api_samples/servers/v2.75/server-update-req.json
@@ -0,0 +1,9 @@
+{
+    "server": {
+        "accessIPv4": "1.2.3.4",
+        "accessIPv6": "80fe::",
+        "OS-DCF:diskConfig": "AUTO",
+        "name": "new-server-test",
+        "description": "Sample description"
+    }
+}
diff --git a/doc/api_samples/servers/v2.75/server-update-resp.json b/doc/api_samples/servers/v2.75/server-update-resp.json
new file mode 100644
index 0000000000..5040ae6c72
--- /dev/null
+++ b/doc/api_samples/servers/v2.75/server-update-resp.json
@@ -0,0 +1,88 @@
+{
+    "server": {
+        "OS-DCF:diskConfig": "AUTO",
+        "OS-EXT-AZ:availability_zone": "us-west",
+        "OS-EXT-SRV-ATTR:host": "compute",
+        "OS-EXT-SRV-ATTR:hostname": "new-server-test",
+        "OS-EXT-SRV-ATTR:hypervisor_hostname": "fake-mini",
+        "OS-EXT-SRV-ATTR:instance_name": "instance-00000001",
+        "OS-EXT-SRV-ATTR:kernel_id": "",
+        "OS-EXT-SRV-ATTR:launch_index": 0,
+        "OS-EXT-SRV-ATTR:ramdisk_id": "",
+        "OS-EXT-SRV-ATTR:reservation_id": "r-t61j9da6",
+        "OS-EXT-SRV-ATTR:root_device_name": "/dev/sda",
+        "OS-EXT-SRV-ATTR:user_data": "IyEvYmluL2Jhc2gKL2Jpbi9zdQplY2hvICJJIGFtIGluIHlvdSEiCg==",
+        "OS-EXT-STS:power_state": 1,
+        "OS-EXT-STS:task_state": null,
+        "OS-EXT-STS:vm_state": "active",
+        "OS-SRV-USG:launched_at": "2019-04-23T15:19:10.855016",
+        "OS-SRV-USG:terminated_at": null,
+        "accessIPv4": "1.2.3.4",
+        "accessIPv6": "80fe::",
+        "addresses": {
+            "private": [
+                {
+                    "OS-EXT-IPS-MAC:mac_addr": "aa:bb:cc:dd:ee:ff",
+                    "OS-EXT-IPS:type": "fixed",
+                    "addr": "192.168.0.3",
+                    "version": 4
+                }
+            ]
+        },
+        "config_drive": "",
+        "created": "2012-12-02T02:11:57Z",
+        "description": "Sample description",
+        "flavor": {
+            "disk": 1,
+            "ephemeral": 0,
+            "extra_specs": {},
+            "original_name": "m1.tiny",
+            "ram": 512,
+            "swap": 0,
+            "vcpus": 1
+        },
+        "hostId": "6e84af987b4e7ec1c039b16d21f508f4a505672bd94fb0218b668d07",
+        "host_status": "UP",
+        "id": "324dfb7d-f4a9-419a-9a19-237df04b443b",
+        "image": {
+            "id": "70a599e0-31e7-49b7-b260-868f441e862b",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/images/70a599e0-31e7-49b7-b260-868f441e862b",
+                    "rel": "bookmark"
+                }
+            ]
+        },
+        "key_name": null,
+        "links": [
+            {
+                "href": "http://openstack.example.com/v2/6f70656e737461636b20342065766572/servers/324dfb7d-f4a9-419a-9a19-237df04b443b",
+                "rel": "self"
+            },
+            {
+                "href": "http://openstack.example.com/6f70656e737461636b20342065766572/servers/324dfb7d-f4a9-419a-9a19-237df04b443b",
+                "rel": "bookmark"
+            }
+        ],
+        "locked": false,
+        "locked_reason": null,
+        "metadata": {
+            "My Server Name": "Apache1"
+        },
+        "name": "new-server-test",
+        "os-extended-volumes:volumes_attached": [],
+        "progress": 0,
+        "security_groups": [
+            {
+                "name": "default"
+            }
+        ],
+        "server_groups": [],
+        "status": "ACTIVE",
+        "tags": [],
+        "tenant_id": "6f70656e737461636b20342065766572",
+        "trusted_image_certificates": null,
+        "updated": "2012-12-02T02:11:58Z",
+        "user_id": "fake"
+    }
+}
diff --git a/doc/api_samples/versions/v21-version-get-resp.json b/doc/api_samples/versions/v21-version-get-resp.json
index 48e874375b..ddcb8b65d8 100644
--- a/doc/api_samples/versions/v21-version-get-resp.json
+++ b/doc/api_samples/versions/v21-version-get-resp.json
@@ -19,7 +19,7 @@
             }
         ],
         "status": "CURRENT",
-        "version": "2.74",
+        "version": "2.75",
         "min_version": "2.1",
         "updated": "2013-07-23T11:33:21Z"
     }
diff --git a/doc/api_samples/versions/versions-get-resp.json b/doc/api_samples/versions/versions-get-resp.json
index f520e6099e..2df2d3c69a 100644
--- a/doc/api_samples/versions/versions-get-resp.json
+++ b/doc/api_samples/versions/versions-get-resp.json
@@ -22,7 +22,7 @@
                 }
             ],
             "status": "CURRENT",
-            "version": "2.74",
+            "version": "2.75",
             "min_version": "2.1",
             "updated": "2013-07-23T11:33:21Z"
         }
diff --git a/nova/api/openstack/api_version_request.py b/nova/api/openstack/api_version_request.py
index f60fc77f09..b3ddea6f5d 100644
--- a/nova/api/openstack/api_version_request.py
+++ b/nova/api/openstack/api_version_request.py
@@ -188,6 +188,14 @@ REST_API_VERSION_HISTORY = """REST API Version History:
              in request body to ``POST /servers``. Allow users to specify which
              host/node they want their servers to land on and still be
              validated by the scheduler.
+    * 2.75 - Multiple API cleanup listed below:
+             - 400 for unknown param for query param and for request body.
+             - Making server representation always consistent among GET, PUT
+               and Rebuild serevr APIs response.
+             - Change the default return value of swap field from the empty
+               string to 0 (integer) in flavor APIs.
+             - Return ``servers`` field always in the response of GET
+               hypervisors API even there are no servers on hypervisor.
 """
 
 # The minimum and maximum versions of the API supported
@@ -196,7 +204,7 @@ REST_API_VERSION_HISTORY = """REST API Version History:
 # Note(cyeoh): This only applies for the v2.1 API once microversions
 # support is fully merged. It does not affect the V2 API.
 _MIN_API_VERSION = "2.1"
-_MAX_API_VERSION = "2.74"
+_MAX_API_VERSION = "2.75"
 DEFAULT_API_VERSION = _MIN_API_VERSION
 
 # Almost all proxy APIs which are related to network, images and baremetal
diff --git a/nova/api/openstack/compute/agents.py b/nova/api/openstack/compute/agents.py
index 0abcef8e16..c2578126c3 100644
--- a/nova/api/openstack/compute/agents.py
+++ b/nova/api/openstack/compute/agents.py
@@ -46,7 +46,8 @@ class AgentController(wsgi.Controller):
     http://wiki.openstack.org/GuestAgent
     http://wiki.openstack.org/GuestAgentXenStoreCommunication
     """
-    @validation.query_schema(schema.index_query)
+    @validation.query_schema(schema.index_query_275, '2.75')
+    @validation.query_schema(schema.index_query, '2.0', '2.74')
     @wsgi.expected_errors(())
     def index(self, req):
         """Return a list of all agent builds. Filter by hypervisor."""
diff --git a/nova/api/openstack/compute/assisted_volume_snapshots.py b/nova/api/openstack/compute/assisted_volume_snapshots.py
index 29039a09cc..10ae0790f6 100644
--- a/nova/api/openstack/compute/assisted_volume_snapshots.py
+++ b/nova/api/openstack/compute/assisted_volume_snapshots.py
@@ -62,7 +62,10 @@ class AssistedVolumeSnapshotsController(wsgi.Controller):
             raise exc.HTTPBadRequest(explanation=e.format_message())
 
     @wsgi.response(204)
-    @validation.query_schema(assisted_volume_snapshots.delete_query)
+    @validation.query_schema(assisted_volume_snapshots.delete_query_275,
+                             '2.75')
+    @validation.query_schema(assisted_volume_snapshots.delete_query, '2.0',
+                             '2.74')
     @wsgi.expected_errors((400, 404))
     def delete(self, req, id):
         """Delete a snapshot."""
diff --git a/nova/api/openstack/compute/flavors.py b/nova/api/openstack/compute/flavors.py
index 8215a2e57e..3986e428b3 100644
--- a/nova/api/openstack/compute/flavors.py
+++ b/nova/api/openstack/compute/flavors.py
@@ -35,14 +35,16 @@ class FlavorsController(wsgi.Controller):
 
     _view_builder_class = flavors_view.ViewBuilder
 
-    @validation.query_schema(schema.index_query)
+    @validation.query_schema(schema.index_query_275, '2.75')
+    @validation.query_schema(schema.index_query, '2.0', '2.74')
     @wsgi.expected_errors(400)
     def index(self, req):
         """Return all flavors in brief."""
         limited_flavors = self._get_flavors(req)
         return self._view_builder.index(req, limited_flavors)
 
-    @validation.query_schema(schema.index_query)
+    @validation.query_schema(schema.index_query_275, '2.75')
+    @validation.query_schema(schema.index_query, '2.0', '2.74')
     @wsgi.expected_errors(400)
     def detail(self, req):
         """Return all flavors in detail."""
diff --git a/nova/api/openstack/compute/hypervisors.py b/nova/api/openstack/compute/hypervisors.py
index a9184edb18..73ac906396 100644
--- a/nova/api/openstack/compute/hypervisors.py
+++ b/nova/api/openstack/compute/hypervisors.py
@@ -50,7 +50,7 @@ class HypervisorsController(wsgi.Controller):
         self.servicegroup_api = servicegroup.API()
 
     def _view_hypervisor(self, hypervisor, service, detail, req, servers=None,
-                         **kwargs):
+                         with_servers=False, **kwargs):
         alive = self.servicegroup_api.service_is_up(service)
         # The 2.53 microversion returns the compute node uuid rather than id.
         uuid_for_id = api_version_request.is_supported(
@@ -89,6 +89,12 @@ class HypervisorsController(wsgi.Controller):
         if servers:
             hyp_dict['servers'] = [dict(name=serv['name'], uuid=serv['uuid'])
                                    for serv in servers]
+        # The 2.75 microversion adds 'servers' field always in response.
+        # Empty list if there are no servers on hypervisors and it is
+        # requested in request.
+        elif with_servers and api_version_request.is_supported(
+                req, min_version='2.75'):
+            hyp_dict['servers'] = []
 
         # Add any additional info
         if kwargs:
@@ -169,7 +175,8 @@ class HypervisorsController(wsgi.Controller):
                     context, hyp.host)
                 hypervisors_list.append(
                     self._view_hypervisor(
-                        hyp, service, detail, req, servers=instances))
+                        hyp, service, detail, req, servers=instances,
+                        with_servers=with_servers))
             except (exception.ComputeHostNotFound,
                     exception.HostMappingNotFound):
                 # The compute service could be deleted which doesn't delete
@@ -312,7 +319,7 @@ class HypervisorsController(wsgi.Controller):
             msg = _("Hypervisor with ID '%s' could not be found.") % id
             raise webob.exc.HTTPNotFound(explanation=msg)
         return dict(hypervisor=self._view_hypervisor(
-            hyp, service, True, req, instances))
+            hyp, service, True, req, instances, with_servers))
 
     @wsgi.expected_errors((400, 404, 501))
     def uptime(self, req, id):
diff --git a/nova/api/openstack/compute/keypairs.py b/nova/api/openstack/compute/keypairs.py
index b3dec117f7..ea80cae246 100644
--- a/nova/api/openstack/compute/keypairs.py
+++ b/nova/api/openstack/compute/keypairs.py
@@ -160,7 +160,8 @@ class KeypairController(wsgi.Controller):
         self._delete(req, id)
 
     @wsgi.Controller.api_version("2.10")    # noqa
-    @validation.query_schema(keypairs.delete_query_schema_v210)
+    @validation.query_schema(keypairs.delete_query_schema_v275, '2.75')
+    @validation.query_schema(keypairs.delete_query_schema_v210, '2.10', '2.74')
     @wsgi.response(204)
     @wsgi.expected_errors(404)
     def delete(self, req, id):
@@ -187,7 +188,8 @@ class KeypairController(wsgi.Controller):
             return user_id
 
     @wsgi.Controller.api_version("2.10")
-    @validation.query_schema(keypairs.show_query_schema_v210)
+    @validation.query_schema(keypairs.show_query_schema_v275, '2.75')
+    @validation.query_schema(keypairs.show_query_schema_v210, '2.10', '2.74')
     @wsgi.expected_errors(404)
     def show(self, req, id):
         # handle optional user-id for admin only
@@ -230,7 +232,8 @@ class KeypairController(wsgi.Controller):
         return {'keypair': keypair}
 
     @wsgi.Controller.api_version("2.35")
-    @validation.query_schema(keypairs.index_query_schema_v235)
+    @validation.query_schema(keypairs.index_query_schema_v275, '2.75')
+    @validation.query_schema(keypairs.index_query_schema_v235, '2.35', '2.74')
     @wsgi.expected_errors(400)
     def index(self, req):
         user_id = self._get_user_id(req)
diff --git a/nova/api/openstack/compute/limits.py b/nova/api/openstack/compute/limits.py
index 958bdf392c..9d28ffe70c 100644
--- a/nova/api/openstack/compute/limits.py
+++ b/nova/api/openstack/compute/limits.py
@@ -66,7 +66,8 @@ class LimitsController(wsgi.Controller):
 
     @wsgi.Controller.api_version('2.57')  # noqa
     @wsgi.expected_errors(())
-    @validation.query_schema(limits.limits_query_schema)
+    @validation.query_schema(limits.limits_query_schema_275, '2.75')
+    @validation.query_schema(limits.limits_query_schema, '2.57', '2.74')
     def index(self, req):
         return self._index(req, FILTERED_LIMITS_2_57, max_image_meta=False)
 
diff --git a/nova/api/openstack/compute/quota_sets.py b/nova/api/openstack/compute/quota_sets.py
index 1112bf997a..f5db68b9d9 100644
--- a/nova/api/openstack/compute/quota_sets.py
+++ b/nova/api/openstack/compute/quota_sets.py
@@ -120,7 +120,8 @@ class QuotaSetsController(wsgi.Controller):
     def show(self, req, id):
         return self._show(req, id, FILTERED_QUOTAS_2_57)
 
-    @validation.query_schema(quota_sets.query_schema)
+    @validation.query_schema(quota_sets.query_schema_275, '2.75')
+    @validation.query_schema(quota_sets.query_schema, '2.0', '2.74')
     def _show(self, req, id, filtered_quotas):
         context = req.environ['nova.context']
         context.can(qs_policies.POLICY_ROOT % 'show', {'project_id': id})
@@ -148,7 +149,8 @@ class QuotaSetsController(wsgi.Controller):
     def detail(self, req, id):
         return self._detail(req, id, FILTERED_QUOTAS_2_57)
 
-    @validation.query_schema(quota_sets.query_schema)
+    @validation.query_schema(quota_sets.query_schema_275, '2.75')
+    @validation.query_schema(quota_sets.query_schema, '2.0', '2.74')
     def _detail(self, req, id, filtered_quotas):
         context = req.environ['nova.context']
         context.can(qs_policies.POLICY_ROOT % 'detail', {'project_id': id})
@@ -179,7 +181,8 @@ class QuotaSetsController(wsgi.Controller):
     def update(self, req, id, body):
         return self._update(req, id, body, FILTERED_QUOTAS_2_57)
 
-    @validation.query_schema(quota_sets.query_schema)
+    @validation.query_schema(quota_sets.query_schema_275, '2.75')
+    @validation.query_schema(quota_sets.query_schema, '2.0', '2.74')
     def _update(self, req, id, body, filtered_quotas):
         context = req.environ['nova.context']
         context.can(qs_policies.POLICY_ROOT % 'update', {'project_id': id})
@@ -267,7 +270,8 @@ class QuotaSetsController(wsgi.Controller):
     # +microversions because the resource quota-set has been deleted completely
     # when returning a response.
     @wsgi.expected_errors(())
-    @validation.query_schema(quota_sets.query_schema)
+    @validation.query_schema(quota_sets.query_schema_275, '2.75')
+    @validation.query_schema(quota_sets.query_schema, '2.0', '2.74')
     @wsgi.response(202)
     def delete(self, req, id):
         context = req.environ['nova.context']
diff --git a/nova/api/openstack/compute/rest_api_version_history.rst b/nova/api/openstack/compute/rest_api_version_history.rst
index 55fe75a61f..ace773fdbc 100644
--- a/nova/api/openstack/compute/rest_api_version_history.rst
+++ b/nova/api/openstack/compute/rest_api_version_history.rst
@@ -955,3 +955,22 @@ be raised.
 There will be also a new policy named
 ``compute:servers:create:requested_destination``. By default,
 it can be specified by administrators only.
+
+2.75
+----
+
+Multiple API cleanups is done in API microversion 2.75:
+
+* 400 for unknown param for query param and for request body.
+
+* Making server representation always consistent among GET, PUT
+  and Rebuild serevr APIs response. ``PUT /servers/{server_id}``
+  and ``POST /servers/{server_id}/action {rebuild}`` API response
+  is modified to add all the missing fields which are return
+  by ``GET /servers/{server_id}``.
+
+* Change the default return value of swap field from the empty
+  string to 0 (integer) in flavor APIs.
+
+* Return ``servers`` field always in the response of GET
+  hypervisors API even there are no servers on hypervisor.
diff --git a/nova/api/openstack/compute/schemas/agents.py b/nova/api/openstack/compute/schemas/agents.py
index 3ef66c84eb..54add72d0f 100644
--- a/nova/api/openstack/compute/schemas/agents.py
+++ b/nova/api/openstack/compute/schemas/agents.py
@@ -11,6 +11,9 @@
 #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 #    License for the specific language governing permissions and limitations
 #    under the License.
+
+import copy
+
 from nova.api.validation import parameter_types
 
 create = {
@@ -88,7 +91,10 @@ index_query = {
     },
     # NOTE(gmann): This is kept True to keep backward compatibility.
     # As of now Schema validation stripped out the additional parameters and
-    # does not raise 400. In the future, we may block the additional parameters
-    # by bump in Microversion.
+    # does not raise 400. In microversion 2.75, we have blocked the additional
+    # parameters.
     'additionalProperties': True
 }
+
+index_query_275 = copy.deepcopy(index_query)
+index_query_275['additionalProperties'] = False
diff --git a/nova/api/openstack/compute/schemas/assisted_volume_snapshots.py b/nova/api/openstack/compute/schemas/assisted_volume_snapshots.py
index 74e3da3434..0a13c50b11 100644
--- a/nova/api/openstack/compute/schemas/assisted_volume_snapshots.py
+++ b/nova/api/openstack/compute/schemas/assisted_volume_snapshots.py
@@ -12,6 +12,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import copy
+
 from nova.api.validation import parameter_types
 
 snapshots_create = {
@@ -58,7 +60,10 @@ delete_query = {
     },
     # NOTE(gmann): This is kept True to keep backward compatibility.
     # As of now Schema validation stripped out the additional parameters and
-    # does not raise 400. In the future, we may block the additional parameters
-    # by bump in Microversion.
+    # does not raise 400. In microversion 2.75, we have blocked the additional
+    # parameters.
     'additionalProperties': True
 }
+
+delete_query_275 = copy.deepcopy(delete_query)
+delete_query_275['additionalProperties'] = False
diff --git a/nova/api/openstack/compute/schemas/flavors.py b/nova/api/openstack/compute/schemas/flavors.py
index 96a6f6b4e8..c6064f02ef 100644
--- a/nova/api/openstack/compute/schemas/flavors.py
+++ b/nova/api/openstack/compute/schemas/flavors.py
@@ -11,6 +11,9 @@
 #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 #    License for the specific language governing permissions and limitations
 #    under the License.
+
+import copy
+
 from nova.api.validation import parameter_types
 
 # NOTE(takashin): The following sort keys are defined for backward
@@ -39,7 +42,10 @@ index_query = {
     },
     # NOTE(gmann): This is kept True to keep backward compatibility.
     # As of now Schema validation stripped out the additional parameters and
-    # does not raise 400. In the future, we may block the additional parameters
-    # by bump in Microversion.
+    # does not raise 400. In microversion 2.75, we have blocked the additional
+    # parameters.
     'additionalProperties': True
 }
+
+index_query_275 = copy.deepcopy(index_query)
+index_query_275['additionalProperties'] = False
diff --git a/nova/api/openstack/compute/schemas/hosts.py b/nova/api/openstack/compute/schemas/hosts.py
index e708e8a1ca..983e428393 100644
--- a/nova/api/openstack/compute/schemas/hosts.py
+++ b/nova/api/openstack/compute/schemas/hosts.py
@@ -44,7 +44,7 @@ index_query = {
     },
     # NOTE(gmann): This is kept True to keep backward compatibility.
     # As of now Schema validation stripped out the additional parameters and
-    # does not raise 400. In the future, we may block the additional parameters
-    # by bump in Microversion.
+    # does not raise 400. This API is deprecated in microversion 2.43 so we
+    # do not to update the additionalProperties to False.
     'additionalProperties': True
 }
diff --git a/nova/api/openstack/compute/schemas/keypairs.py b/nova/api/openstack/compute/schemas/keypairs.py
index a3410eee18..7ebd3c7433 100644
--- a/nova/api/openstack/compute/schemas/keypairs.py
+++ b/nova/api/openstack/compute/schemas/keypairs.py
@@ -105,3 +105,10 @@ show_query_schema_v20 = index_query_schema_v20
 show_query_schema_v210 = index_query_schema_v210
 delete_query_schema_v20 = index_query_schema_v20
 delete_query_schema_v210 = index_query_schema_v210
+
+index_query_schema_v275 = copy.deepcopy(index_query_schema_v235)
+index_query_schema_v275['additionalProperties'] = False
+show_query_schema_v275 = copy.deepcopy(show_query_schema_v210)
+show_query_schema_v275['additionalProperties'] = False
+delete_query_schema_v275 = copy.deepcopy(delete_query_schema_v210)
+delete_query_schema_v275['additionalProperties'] = False
diff --git a/nova/api/openstack/compute/schemas/limits.py b/nova/api/openstack/compute/schemas/limits.py
index 6cd3da580b..e269cc55ab 100644
--- a/nova/api/openstack/compute/schemas/limits.py
+++ b/nova/api/openstack/compute/schemas/limits.py
@@ -11,6 +11,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import copy
+
 from nova.api.validation import parameter_types
 
 
@@ -20,5 +22,10 @@ limits_query_schema = {
         'tenant_id': parameter_types.common_query_param,
     },
     # For backward compatible changes
+    # In microversion 2.75, we have blocked the additional
+    # parameters.
     'additionalProperties': True
 }
+
+limits_query_schema_275 = copy.deepcopy(limits_query_schema)
+limits_query_schema_275['additionalProperties'] = False
diff --git a/nova/api/openstack/compute/schemas/quota_sets.py b/nova/api/openstack/compute/schemas/quota_sets.py
index 1942488ac2..fe45df74dc 100644
--- a/nova/api/openstack/compute/schemas/quota_sets.py
+++ b/nova/api/openstack/compute/schemas/quota_sets.py
@@ -85,7 +85,10 @@ query_schema = {
     },
     # NOTE(gmann): This is kept True to keep backward compatibility.
     # As of now Schema validation stripped out the additional parameters and
-    # does not raise 400. In the future, we may block the additional parameters
-    # by bump in Microversion.
+    # does not raise 400. In microversion 2.75, we have blocked the additional
+    # parameters.
     'additionalProperties': True
 }
+
+query_schema_275 = copy.deepcopy(query_schema)
+query_schema_275['additionalProperties'] = False
diff --git a/nova/api/openstack/compute/schemas/security_groups.py b/nova/api/openstack/compute/schemas/security_groups.py
index 5e025b069a..8e0dc66171 100644
--- a/nova/api/openstack/compute/schemas/security_groups.py
+++ b/nova/api/openstack/compute/schemas/security_groups.py
@@ -25,7 +25,7 @@ index_query = {
     },
     # NOTE(gmann): This is kept True to keep backward compatibility.
     # As of now Schema validation stripped out the additional parameters and
-    # does not raise 400. In the future, we may block the additional parameters
-    # by bump in Microversion.
+    # does not raise 400. This API is deprecated in microversion 2.36 so we
+    # do not to update the additionalProperties to False.
     'additionalProperties': True
 }
diff --git a/nova/api/openstack/compute/schemas/server_groups.py b/nova/api/openstack/compute/schemas/server_groups.py
index d8401e1583..c5724bd687 100644
--- a/nova/api/openstack/compute/schemas/server_groups.py
+++ b/nova/api/openstack/compute/schemas/server_groups.py
@@ -80,6 +80,10 @@ server_groups_query_param = {
         'offset': parameter_types.multi_params(
              parameter_types.non_negative_integer),
     },
-    # For backward compatible changes
+    # For backward compatible changes.  In microversion 2.75, we have
+    # blocked the additional parameters.
     'additionalProperties': True
 }
+
+server_groups_query_param_275 = copy.deepcopy(server_groups_query_param)
+server_groups_query_param_275['additionalProperties'] = False
diff --git a/nova/api/openstack/compute/schemas/servers.py b/nova/api/openstack/compute/schemas/servers.py
index 51887dcaae..ce1e2035df 100644
--- a/nova/api/openstack/compute/schemas/servers.py
+++ b/nova/api/openstack/compute/schemas/servers.py
@@ -625,6 +625,8 @@ query_params_v21 = {
     # For backward-compatible additionalProperties is set to be True here.
     # And we will either strip the extra params out or raise HTTP 400
     # according to the params' value in the later process.
+    # This has been changed to False in microversion 2.75. From
+    # microversion 2.75, no additional unknown parameter will be allowed.
     'additionalProperties': True,
     # Prevent internal-attributes that are started with underscore from
     # being striped out in schema validation, and raise HTTP 400 in API.
@@ -659,3 +661,22 @@ query_params_v273['properties'].update({
     'sort_key': multi_params(VALID_SORT_KEYS_V273),
     'locked': parameter_types.common_query_param,
 })
+
+# Microversion 2.75 makes query schema to disallow any invalid or unknown
+# query parameters (filter or sort keys).
+# *****Schema updates for microversion 2.75 start here*******
+query_params_v275 = copy.deepcopy(query_params_v273)
+# 1. Update sort_keys to allow only valid sort keys:
+# NOTE(gmann): Remove the ignored sort keys now because 'additionalProperties'
+# is Flase for query schema. Starting from miceoversion 2.75, API will
+# raise 400 for any not-allowed sort keys instead of ignoring them.
+VALID_SORT_KEYS_V275 = copy.deepcopy(VALID_SORT_KEYS_V273)
+VALID_SORT_KEYS_V275['enum'] = list(
+            set(VALID_SORT_KEYS_V273["enum"]) - set(
+            SERVER_LIST_IGNORE_SORT_KEY_V273))
+query_params_v275['properties'].update({
+    'sort_key': multi_params(VALID_SORT_KEYS_V275),
+})
+# 2. Make 'additionalProperties' False.
+query_params_v275['additionalProperties'] = False
+# *****Schema updates for microversion 2.75 end here*******
diff --git a/nova/api/openstack/compute/schemas/services.py b/nova/api/openstack/compute/schemas/services.py
index 45cded092f..286403a8d1 100644
--- a/nova/api/openstack/compute/schemas/services.py
+++ b/nova/api/openstack/compute/schemas/services.py
@@ -12,6 +12,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import copy
+
 from nova.api.validation import parameter_types
 
 service_update = {
@@ -76,3 +78,6 @@ index_query_schema = {
     # For backward compatible changes
     'additionalProperties': True
 }
+
+index_query_schema_275 = copy.deepcopy(index_query_schema)
+index_query_schema_275['additionalProperties'] = False
diff --git a/nova/api/openstack/compute/schemas/simple_tenant_usage.py b/nova/api/openstack/compute/schemas/simple_tenant_usage.py
index c7e2a65723..7ac34416e6 100644
--- a/nova/api/openstack/compute/schemas/simple_tenant_usage.py
+++ b/nova/api/openstack/compute/schemas/simple_tenant_usage.py
@@ -25,8 +25,8 @@ index_query = {
     },
     # NOTE(gmann): This is kept True to keep backward compatibility.
     # As of now Schema validation stripped out the additional parameters and
-    # does not raise 400. In the future, we may block the additional parameters
-    # by bump in Microversion.
+    # does not raise 400. In microversion 2.75, we have blocked the additional
+    # parameters.
     'additionalProperties': True
 }
 
@@ -38,8 +38,8 @@ show_query = {
     },
     # NOTE(gmann): This is kept True to keep backward compatibility.
     # As of now Schema validation stripped out the additional parameters and
-    # does not raise 400. In the future, we may block the additional parameters
-    # by bump in Microversion.
+    # does not raise 400. In microversion 2.75, we have blocked the additional
+    # parameters.
     'additionalProperties': True
 }
 
@@ -50,3 +50,9 @@ index_query_v240['properties'].update(
 show_query_v240 = copy.deepcopy(show_query)
 show_query_v240['properties'].update(
     parameter_types.pagination_parameters)
+
+index_query_275 = copy.deepcopy(index_query_v240)
+index_query_275['additionalProperties'] = False
+
+show_query_275 = copy.deepcopy(show_query_v240)
+show_query_275['additionalProperties'] = False
diff --git a/nova/api/openstack/compute/schemas/volumes.py b/nova/api/openstack/compute/schemas/volumes.py
index 36bc1704b8..9a6a3d9b36 100644
--- a/nova/api/openstack/compute/schemas/volumes.py
+++ b/nova/api/openstack/compute/schemas/volumes.py
@@ -101,9 +101,12 @@ index_query = {
     },
     # NOTE(gmann): This is kept True to keep backward compatibility.
     # As of now Schema validation stripped out the additional parameters and
-    # does not raise 400. In the future, we may block the additional parameters
-    # by bump in Microversion.
+    # does not raise 400. In microversion 2.75, we have blocked the additional
+    # parameters.
     'additionalProperties': True
 }
 
 detail_query = index_query
+
+index_query_275 = copy.deepcopy(index_query)
+index_query_275['additionalProperties'] = False
diff --git a/nova/api/openstack/compute/server_groups.py b/nova/api/openstack/compute/server_groups.py
index 14fdd485f4..059103017e 100644
--- a/nova/api/openstack/compute/server_groups.py
+++ b/nova/api/openstack/compute/server_groups.py
@@ -148,7 +148,8 @@ class ServerGroupController(wsgi.Controller):
             raise webob.exc.HTTPNotFound(explanation=e.format_message())
 
     @wsgi.expected_errors(())
-    @validation.query_schema(schema.server_groups_query_param)
+    @validation.query_schema(schema.server_groups_query_param_275, '2.75')
+    @validation.query_schema(schema.server_groups_query_param, '2.0', '2.74')
     def index(self, req):
         """Returns a list of server groups."""
         context = _authorize_context(req, 'index')
diff --git a/nova/api/openstack/compute/servers.py b/nova/api/openstack/compute/servers.py
index d633cc5489..06a54e1985 100644
--- a/nova/api/openstack/compute/servers.py
+++ b/nova/api/openstack/compute/servers.py
@@ -108,7 +108,8 @@ class ServersController(wsgi.Controller):
         self.network_api = network_api.API()
 
     @wsgi.expected_errors((400, 403))
-    @validation.query_schema(schema_servers.query_params_v273, '2.73')
+    @validation.query_schema(schema_servers.query_params_v275, '2.75')
+    @validation.query_schema(schema_servers.query_params_v273, '2.73', '2.74')
     @validation.query_schema(schema_servers.query_params_v266, '2.66', '2.72')
     @validation.query_schema(schema_servers.query_params_v226, '2.26', '2.65')
     @validation.query_schema(schema_servers.query_params_v21, '2.1', '2.25')
@@ -123,7 +124,8 @@ class ServersController(wsgi.Controller):
         return servers
 
     @wsgi.expected_errors((400, 403))
-    @validation.query_schema(schema_servers.query_params_v273, '2.73')
+    @validation.query_schema(schema_servers.query_params_v275, '2.75')
+    @validation.query_schema(schema_servers.query_params_v273, '2.73', '2.74')
     @validation.query_schema(schema_servers.query_params_v266, '2.66', '2.72')
     @validation.query_schema(schema_servers.query_params_v226, '2.26', '2.65')
     @validation.query_schema(schema_servers.query_params_v21, '2.1', '2.25')
@@ -828,19 +830,38 @@ class ServersController(wsgi.Controller):
         try:
             instance = self.compute_api.update_instance(ctxt, instance,
                                                         update_dict)
+
+            # NOTE(gmann): Starting from microversion 2.75, PUT and Rebuild
+            # API response will show all attributes like GET /servers API.
+            show_all_attributes = api_version_request.is_supported(
+                req, min_version='2.75')
+            extend_address = show_all_attributes
+            show_AZ = show_all_attributes
+            show_config_drive = show_all_attributes
+            show_keypair = show_all_attributes
+            show_srv_usg = show_all_attributes
+            show_sec_grp = show_all_attributes
+            show_extended_status = show_all_attributes
+            show_extended_volumes = show_all_attributes
+            # NOTE(gmann): Below attributes need to be added in response
+            # if respective policy allows.So setting these as None
+            # to perform the policy check in view builder.
+            show_extended_attr = None if show_all_attributes else False
+            show_host_status = None if show_all_attributes else False
+
             return self._view_builder.show(
-                                      req, instance,
-                                      extend_address=False,
-                                      show_AZ=False,
-                                      show_config_drive=False,
-                                      show_extended_attr=False,
-                                      show_host_status=False,
-                                      show_keypair=False,
-                                      show_srv_usg=False,
-                                      show_sec_grp=False,
-                                      show_extended_status=False,
-                                      show_extended_volumes=False,
-                                      show_server_groups=show_server_groups)
+                req, instance,
+                extend_address=extend_address,
+                show_AZ=show_AZ,
+                show_config_drive=show_config_drive,
+                show_extended_attr=show_extended_attr,
+                show_host_status=show_host_status,
+                show_keypair=show_keypair,
+                show_srv_usg=show_srv_usg,
+                show_sec_grp=show_sec_grp,
+                show_extended_status=show_extended_status,
+                show_extended_volumes=show_extended_volumes,
+                show_server_groups=show_server_groups)
         except exception.InstanceNotFound:
             msg = _("Instance could not be found")
             raise exc.HTTPNotFound(explanation=msg)
@@ -1118,17 +1139,40 @@ class ServersController(wsgi.Controller):
         show_server_groups = api_version_request.is_supported(
                            req, min_version='2.71')
 
-        view = self._view_builder.show(req, instance, extend_address=False,
-                                       show_AZ=False,
-                                       show_config_drive=False,
-                                       show_extended_attr=False,
-                                       show_host_status=False,
-                                       show_keypair=show_keypair,
-                                       show_srv_usg=False,
-                                       show_sec_grp=False,
-                                       show_extended_status=False,
-                                       show_extended_volumes=False,
-                                       show_server_groups=show_server_groups)
+        # NOTE(gmann): Starting from microversion 2.75, PUT and Rebuild
+        # API response will show all attributes like GET /servers API.
+        show_all_attributes = api_version_request.is_supported(
+            req, min_version='2.75')
+        extend_address = show_all_attributes
+        show_AZ = show_all_attributes
+        show_config_drive = show_all_attributes
+        show_srv_usg = show_all_attributes
+        show_sec_grp = show_all_attributes
+        show_extended_status = show_all_attributes
+        show_extended_volumes = show_all_attributes
+        # NOTE(gmann): Below attributes need to be added in response
+        # if respective policy allows.So setting these as None
+        # to perform the policy check in view builder.
+        show_extended_attr = None if show_all_attributes else False
+        show_host_status = None if show_all_attributes else False
+
+        view = self._view_builder.show(
+            req, instance,
+            extend_address=extend_address,
+            show_AZ=show_AZ,
+            show_config_drive=show_config_drive,
+            show_extended_attr=show_extended_attr,
+            show_host_status=show_host_status,
+            show_keypair=show_keypair,
+            show_srv_usg=show_srv_usg,
+            show_sec_grp=show_sec_grp,
+            show_extended_status=show_extended_status,
+            show_extended_volumes=show_extended_volumes,
+            show_server_groups=show_server_groups,
+            # NOTE(gmann): user_data has been added in response (by code at
+            # the end of this API method) since microversion 2.57 so tell
+            # view builder not to include it.
+            show_user_data=False)
 
         # Add on the admin_password attribute since the view doesn't do it
         # unless instance passwords are disabled
diff --git a/nova/api/openstack/compute/services.py b/nova/api/openstack/compute/services.py
index 235fd9f61d..718e9e3574 100644
--- a/nova/api/openstack/compute/services.py
+++ b/nova/api/openstack/compute/services.py
@@ -292,7 +292,8 @@ class ServiceController(wsgi.Controller):
             explanation = _("Service id %s refers to multiple services.") % id
             raise webob.exc.HTTPBadRequest(explanation=explanation)
 
-    @validation.query_schema(services.index_query_schema)
+    @validation.query_schema(services.index_query_schema_275, '2.75')
+    @validation.query_schema(services.index_query_schema, '2.0', '2.74')
     @wsgi.expected_errors(())
     def index(self, req):
         """Return a list of all running services. Filter by host & service
diff --git a/nova/api/openstack/compute/simple_tenant_usage.py b/nova/api/openstack/compute/simple_tenant_usage.py
index 7bcc084117..f1bef343f4 100644
--- a/nova/api/openstack/compute/simple_tenant_usage.py
+++ b/nova/api/openstack/compute/simple_tenant_usage.py
@@ -263,7 +263,8 @@ class SimpleTenantUsageController(wsgi.Controller):
         return (period_start, period_stop, detailed)
 
     @wsgi.Controller.api_version("2.40")
-    @validation.query_schema(schema.index_query_v240)
+    @validation.query_schema(schema.index_query_275, '2.75')
+    @validation.query_schema(schema.index_query_v240, '2.40', '2.74')
     @wsgi.expected_errors(400)
     def index(self, req):
         """Retrieve tenant_usage for all tenants."""
@@ -277,7 +278,8 @@ class SimpleTenantUsageController(wsgi.Controller):
         return self._index(req)
 
     @wsgi.Controller.api_version("2.40")
-    @validation.query_schema(schema.show_query_v240)
+    @validation.query_schema(schema.show_query_275, '2.75')
+    @validation.query_schema(schema.show_query_v240, '2.40', '2.74')
     @wsgi.expected_errors(400)
     def show(self, req, id):
         """Retrieve tenant_usage for a specified tenant."""
diff --git a/nova/api/openstack/compute/views/flavors.py b/nova/api/openstack/compute/views/flavors.py
index 2c7e925f52..1df4f093ba 100644
--- a/nova/api/openstack/compute/views/flavors.py
+++ b/nova/api/openstack/compute/views/flavors.py
@@ -70,6 +70,9 @@ class ViewBuilder(common.ViewBuilder):
         if include_extra_specs:
             flavor_dict['flavor']['extra_specs'] = flavor.extra_specs
 
+        if api_version_request.is_supported(request, '2.75'):
+            flavor_dict['flavor']['swap'] = flavor["swap"] or 0
+
         return flavor_dict
 
     def index(self, request, flavors):
diff --git a/nova/api/openstack/compute/views/servers.py b/nova/api/openstack/compute/views/servers.py
index 0d1328768e..087bc27091 100644
--- a/nova/api/openstack/compute/views/servers.py
+++ b/nova/api/openstack/compute/views/servers.py
@@ -88,13 +88,15 @@ class ViewBuilder(common.ViewBuilder):
                     'AUTO' if instance.get('auto_disk_config') else 'MANUAL'),
             },
         }
-        self._add_security_grps(request, [server["server"]], [instance])
+        self._add_security_grps(request, [server["server"]], [instance],
+                                create_request=True)
 
         return server
 
     def basic(self, request, instance, show_extra_specs=False,
               show_extended_attr=None, show_host_status=None,
-              show_sec_grp=None, bdms=None, cell_down_support=False):
+              show_sec_grp=None, bdms=None, cell_down_support=False,
+              show_user_data=False):
         """Generic, non-detailed view of an instance."""
         if cell_down_support and 'display_name' not in instance:
             # NOTE(tssurya): If the microversion is >= 2.69, this boolean will
@@ -187,7 +189,8 @@ class ViewBuilder(common.ViewBuilder):
              show_extended_attr=None, show_host_status=None,
              show_keypair=True, show_srv_usg=True, show_sec_grp=True,
              show_extended_status=True, show_extended_volumes=True,
-             bdms=None, cell_down_support=False, show_server_groups=False):
+             bdms=None, cell_down_support=False, show_server_groups=False,
+             show_user_data=True):
         """Detailed view of a single instance."""
         if show_extra_specs is None:
             # detail will pre-calculate this for us. If we're doing show,
@@ -284,7 +287,15 @@ class ViewBuilder(common.ViewBuilder):
                 # the OS-EXT-SRV-ATTR prefix.
                 properties += ['reservation_id', 'launch_index',
                                'hostname', 'kernel_id', 'ramdisk_id',
-                               'root_device_name', 'user_data']
+                               'root_device_name']
+                # NOTE(gmann): Since microversion 2.75, PUT and Rebuild
+                # response include all the server attributes including these
+                # extended attributes also. But microversion 2.57 already
+                # adding the 'user_data' in Rebuild response in API method.
+                # so we will skip adding the user data attribute for rebuild
+                # case. 'show_user_data' is false only in case of rebuild.
+                if show_user_data:
+                    properties += ['user_data']
             for attr in properties:
                 if attr == 'name':
                     key = "OS-EXT-SRV-ATTR:instance_%s" % attr
@@ -585,7 +596,8 @@ class ViewBuilder(common.ViewBuilder):
             if server['id'] in host_statuses:
                 server['host_status'] = host_statuses[server['id']]
 
-    def _add_security_grps(self, req, servers, instances):
+    def _add_security_grps(self, req, servers, instances,
+                           create_request=False):
         if not len(servers):
             return
         if not openstack_driver.is_neutron_security_groups():
@@ -597,11 +609,14 @@ class ViewBuilder(common.ViewBuilder):
                     server['security_groups'] = [{"name": group.name}
                                                  for group in groups]
         else:
-            # If method is a POST we get the security groups intended for an
-            # instance from the request. The reason for this is if using
-            # neutron security groups the requested security groups for the
-            # instance are not in the db and have not been sent to neutron yet.
-            if req.method != 'POST':
+            # If request is a POST create server we get the security groups
+            # intended for an instance from the request. The reason for this
+            # is if using neutron security groups the requested security
+            # groups for the instance are not in the db and have not been
+            # sent to neutron yet.
+            # Starting from microversion 2.75, security groups is returned in
+            # PUT and POST Rebuild response also.
+            if not create_request:
                 context = req.environ['nova.context']
                 sg_instance_bindings = (
                     self.security_group_api
@@ -612,8 +627,8 @@ class ViewBuilder(common.ViewBuilder):
                     if groups:
                         server['security_groups'] = groups
 
-            # This section is for POST request. There can be only one security
-            # group for POST request.
+            # This section is for POST create server request. There can be
+            # only one security group for POST create server request.
             else:
                 # try converting to json
                 req_obj = jsonutils.loads(req.body)
diff --git a/nova/api/openstack/compute/volumes.py b/nova/api/openstack/compute/volumes.py
index cfb38fb7a1..d593787bcb 100644
--- a/nova/api/openstack/compute/volumes.py
+++ b/nova/api/openstack/compute/volumes.py
@@ -267,7 +267,8 @@ class VolumeAttachmentController(wsgi.Controller):
         super(VolumeAttachmentController, self).__init__()
 
     @wsgi.expected_errors(404)
-    @validation.query_schema(volumes_schema.index_query)
+    @validation.query_schema(volumes_schema.index_query_275, '2.75')
+    @validation.query_schema(volumes_schema.index_query, '2.0', '2.74')
     def index(self, req, server_id):
         """Returns the list of volume attachments for a given instance."""
         context = req.environ['nova.context']
diff --git a/nova/api/validation/__init__.py b/nova/api/validation/__init__.py
index 6f1d0b3475..289ca71f03 100644
--- a/nova/api/validation/__init__.py
+++ b/nova/api/validation/__init__.py
@@ -186,8 +186,8 @@ def query_schema(query_params_schema, min_version=None,
                 # out when `additionalProperties=True`. This is for backward
                 # compatible with v2.1 API and legacy v2 API. But it makes the
                 # system more safe for no more unexpected parameters pass down
-                # to the system. In the future, we may block all of those
-                # additional parameters by Microversion.
+                # to the system. In microversion 2.75, we have blocked all of
+                # those additional parameters.
                 _strip_additional_query_parameters(query_params_schema, req)
             return func(*args, **kwargs)
         return wrapper
diff --git a/nova/tests/functional/api_sample_tests/api_samples/flavor-manage/v2.75/flavor-create-post-req.json.tpl b/nova/tests/functional/api_sample_tests/api_samples/flavor-manage/v2.75/flavor-create-post-req.json.tpl
new file mode 100644
index 0000000000..2065b445cf
--- /dev/null
+++ b/nova/tests/functional/api_sample_tests/api_samples/flavor-manage/v2.75/flavor-create-post-req.json.tpl
@@ -0,0 +1,11 @@
+{
+    "flavor": {
+        "name": "%(flavor_name)s",
+        "ram": 1024,
+        "vcpus": 2,
+        "disk": 10,
+        "id": "%(flavor_id)s",
+        "rxtx_factor": 2.0,
+        "description": "test description"
+    }
+}
diff --git a/nova/tests/functional/api_sample_tests/api_samples/flavor-manage/v2.75/flavor-create-post-resp.json.tpl b/nova/tests/functional/api_sample_tests/api_samples/flavor-manage/v2.75/flavor-create-post-resp.json.tpl
new file mode 100644
index 0000000000..2ebb8f8360
--- /dev/null
+++ b/nova/tests/functional/api_sample_tests/api_samples/flavor-manage/v2.75/flavor-create-post-resp.json.tpl
@@ -0,0 +1,26 @@
+{
+    "flavor": {
+        "disk": 10,
+        "id": "%(flavor_id)s",
+        "links": [
+            {
+                "href": "%(versioned_compute_endpoint)s/flavors/%(flavor_id)s",
+                "rel": "self"
+            },
+            {
+                "href": "%(compute_endpoint)s/flavors/%(flavor_id)s",
+                "rel": "bookmark"
+            }
+        ],
+        "name": "%(flavor_name)s",
+        "os-flavor-access:is_public": true,
+        "ram": 1024,
+        "vcpus": 2,
+        "OS-FLV-DISABLED:disabled": false,
+        "OS-FLV-EXT-DATA:ephemeral": 0,
+        "swap": 0,
+        "rxtx_factor": 2.0,
+        "description": "test description",
+        "extra_specs": {}
+    }
+}
diff --git a/nova/tests/functional/api_sample_tests/api_samples/flavor-manage/v2.75/flavor-update-req.json.tpl b/nova/tests/functional/api_sample_tests/api_samples/flavor-manage/v2.75/flavor-update-req.json.tpl
new file mode 100644
index 0000000000..93c8e1e8ab
--- /dev/null
+++ b/nova/tests/functional/api_sample_tests/api_samples/flavor-manage/v2.75/flavor-update-req.json.tpl
@@ -0,0 +1,5 @@
+{
+    "flavor": {
+        "description": "updated description"
+    }
+}
diff --git a/nova/tests/functional/api_sample_tests/api_samples/flavor-manage/v2.75/flavor-update-resp.json.tpl b/nova/tests/functional/api_sample_tests/api_samples/flavor-manage/v2.75/flavor-update-resp.json.tpl
new file mode 100644
index 0000000000..4e92b10582
--- /dev/null
+++ b/nova/tests/functional/api_sample_tests/api_samples/flavor-manage/v2.75/flavor-update-resp.json.tpl
@@ -0,0 +1,26 @@
+{
+    "flavor": {
+        "OS-FLV-DISABLED:disabled": false,
+        "disk": 1,
+        "OS-FLV-EXT-DATA:ephemeral": 0,
+        "os-flavor-access:is_public": true,
+        "id": "1",
+        "links": [
+            {
+                "href": "http://openstack.example.com/v2.1/6f70656e737461636b20342065766572/flavors/1",
+                "rel": "self"
+            },
+            {
+                "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/1",
+                "rel": "bookmark"
+            }
+        ],
+        "name": "m1.tiny",
+        "ram": 512,
+        "swap": 0,
+        "vcpus": 1,
+        "rxtx_factor": 1.0,
+        "description": "updated description",
+        "extra_specs": {}
+    }
+}
diff --git a/nova/tests/functional/api_sample_tests/api_samples/flavors/v2.75/flavor-get-resp.json.tpl b/nova/tests/functional/api_sample_tests/api_samples/flavors/v2.75/flavor-get-resp.json.tpl
new file mode 100644
index 0000000000..afa3eccbea
--- /dev/null
+++ b/nova/tests/functional/api_sample_tests/api_samples/flavors/v2.75/flavor-get-resp.json.tpl
@@ -0,0 +1,29 @@
+{
+    "flavor": {
+        "OS-FLV-DISABLED:disabled": false,
+        "disk": 20,
+        "OS-FLV-EXT-DATA:ephemeral": 0,
+        "id": "%(flavorid)s",
+        "links": [
+            {
+                "href": "%(versioned_compute_endpoint)s/flavors/%(flavorid)s",
+                "rel": "self"
+            },
+            {
+                "href": "%(compute_endpoint)s/flavors/%(flavorid)s",
+                "rel": "bookmark"
+            }
+        ],
+        "name": "m1.small.description",
+        "os-flavor-access:is_public": true,
+        "ram": 2048,
+        "swap": 0,
+        "vcpus": 1,
+        "rxtx_factor": 1.0,
+        "description": "test description",
+        "extra_specs": {
+            "key1": "value1",
+            "key2": "value2"
+        }
+    }
+}
diff --git a/nova/tests/functional/api_sample_tests/api_samples/flavors/v2.75/flavors-detail-resp.json.tpl b/nova/tests/functional/api_sample_tests/api_samples/flavors/v2.75/flavors-detail-resp.json.tpl
new file mode 100644
index 0000000000..88bd02e2cc
--- /dev/null
+++ b/nova/tests/functional/api_sample_tests/api_samples/flavors/v2.75/flavors-detail-resp.json.tpl
@@ -0,0 +1,178 @@
+{
+    "flavors": [
+        {
+            "OS-FLV-DISABLED:disabled": false,
+            "disk": 1,
+            "OS-FLV-EXT-DATA:ephemeral": 0,
+            "id": "1",
+            "links": [
+                {
+                    "href": "%(versioned_compute_endpoint)s/flavors/1",
+                    "rel": "self"
+                },
+                {
+                    "href": "%(compute_endpoint)s/flavors/1",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.tiny",
+            "os-flavor-access:is_public": true,
+            "ram": 512,
+            "swap": 0,
+            "vcpus": 1,
+            "rxtx_factor": 1.0,
+            "description": null,
+            "extra_specs": {}
+        },
+        {
+            "OS-FLV-DISABLED:disabled": false,
+            "disk": 20,
+            "OS-FLV-EXT-DATA:ephemeral": 0,
+            "id": "2",
+            "links": [
+                {
+                    "href": "%(versioned_compute_endpoint)s/flavors/2",
+                    "rel": "self"
+                },
+                {
+                    "href": "%(compute_endpoint)s/flavors/2",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.small",
+            "os-flavor-access:is_public": true,
+            "ram": 2048,
+            "swap": 0,
+            "vcpus": 1,
+            "rxtx_factor": 1.0,
+            "description": null,
+            "extra_specs": {}
+        },
+        {
+            "OS-FLV-DISABLED:disabled": false,
+            "disk": 40,
+            "OS-FLV-EXT-DATA:ephemeral": 0,
+            "id": "3",
+            "links": [
+                {
+                    "href": "%(versioned_compute_endpoint)s/flavors/3",
+                    "rel": "self"
+                },
+                {
+                    "href": "%(compute_endpoint)s/flavors/3",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.medium",
+            "os-flavor-access:is_public": true,
+            "ram": 4096,
+            "swap": 0,
+            "vcpus": 2,
+            "rxtx_factor": 1.0,
+            "description": null,
+            "extra_specs": {}
+        },
+        {
+            "OS-FLV-DISABLED:disabled": false,
+            "disk": 80,
+            "OS-FLV-EXT-DATA:ephemeral": 0,
+            "id": "4",
+            "links": [
+                {
+                    "href": "%(versioned_compute_endpoint)s/flavors/4",
+                    "rel": "self"
+                },
+                {
+                    "href": "%(compute_endpoint)s/flavors/4",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.large",
+            "os-flavor-access:is_public": true,
+            "ram": 8192,
+            "swap": 0,
+            "vcpus": 4,
+            "rxtx_factor": 1.0,
+            "description": null,
+            "extra_specs": {}
+        },
+        {
+            "OS-FLV-DISABLED:disabled": false,
+            "disk": 160,
+            "OS-FLV-EXT-DATA:ephemeral": 0,
+            "id": "5",
+            "links": [
+                {
+                    "href": "%(versioned_compute_endpoint)s/flavors/5",
+                    "rel": "self"
+                },
+                {
+                    "href": "%(compute_endpoint)s/flavors/5",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.xlarge",
+            "os-flavor-access:is_public": true,
+            "ram": 16384,
+            "swap": 0,
+            "vcpus": 8,
+            "rxtx_factor": 1.0,
+            "description": null,
+            "extra_specs": {}
+        },
+        {
+            "OS-FLV-DISABLED:disabled": false,
+            "disk": 1,
+            "OS-FLV-EXT-DATA:ephemeral": 0,
+            "id": "6",
+            "links": [
+                {
+                    "href": "%(versioned_compute_endpoint)s/flavors/6",
+                    "rel": "self"
+                },
+                {
+                    "href": "%(compute_endpoint)s/flavors/6",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.tiny.specs",
+            "os-flavor-access:is_public": true,
+            "ram": 512,
+            "swap": 0,
+            "vcpus": 1,
+            "rxtx_factor": 1.0,
+            "description": null,
+            "extra_specs": {
+                "hw:mem_page_size": "2048",
+                "hw:cpu_policy": "dedicated"
+            }
+        },
+        {
+            "OS-FLV-DISABLED:disabled": false,
+            "disk": 20,
+            "OS-FLV-EXT-DATA:ephemeral": 0,
+            "id": "%(flavorid)s",
+            "links": [
+                {
+                    "href": "%(versioned_compute_endpoint)s/flavors/%(flavorid)s",
+                    "rel": "self"
+                },
+                {
+                    "href": "%(compute_endpoint)s/flavors/%(flavorid)s",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.small.description",
+            "os-flavor-access:is_public": true,
+            "ram": 2048,
+            "swap": 0,
+            "vcpus": 1,
+            "rxtx_factor": 1.0,
+            "description": "test description",
+            "extra_specs": {
+                "key1": "value1",
+                "key2": "value2"
+            }
+        }
+    ]
+}
diff --git a/nova/tests/functional/api_sample_tests/api_samples/flavors/v2.75/flavors-list-resp.json.tpl b/nova/tests/functional/api_sample_tests/api_samples/flavors/v2.75/flavors-list-resp.json.tpl
new file mode 100644
index 0000000000..1c416099c4
--- /dev/null
+++ b/nova/tests/functional/api_sample_tests/api_samples/flavors/v2.75/flavors-list-resp.json.tpl
@@ -0,0 +1,109 @@
+{
+    "flavors": [
+        {
+            "description": null,
+            "id": "1",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2.1/6f70656e737461636b20342065766572/flavors/1",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/1",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.tiny"
+        },
+        {
+            "description": null,
+            "id": "2",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2.1/6f70656e737461636b20342065766572/flavors/2",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/2",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.small"
+        },
+        {
+            "description": null,
+            "id": "3",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2.1/6f70656e737461636b20342065766572/flavors/3",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/3",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.medium"
+        },
+        {
+            "description": null,
+            "id": "4",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2.1/6f70656e737461636b20342065766572/flavors/4",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/4",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.large"
+        },
+        {
+            "description": null,
+            "id": "5",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2.1/6f70656e737461636b20342065766572/flavors/5",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/5",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.xlarge"
+        },
+        {
+            "description": null,
+            "id": "6",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2.1/6f70656e737461636b20342065766572/flavors/6",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/6",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.tiny.specs"
+        },
+        {
+            "description": "test description",
+            "id": "7",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2.1/6f70656e737461636b20342065766572/flavors/7",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://openstack.example.com/6f70656e737461636b20342065766572/flavors/7",
+                    "rel": "bookmark"
+                }
+            ],
+            "name": "m1.small.description"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/nova/tests/functional/api_sample_tests/api_samples/servers/v2.75/server-action-rebuild-resp.json.tpl b/nova/tests/functional/api_sample_tests/api_samples/servers/v2.75/server-action-rebuild-resp.json.tpl
new file mode 100644
index 0000000000..4a3ac19623
--- /dev/null
+++ b/nova/tests/functional/api_sample_tests/api_samples/servers/v2.75/server-action-rebuild-resp.json.tpl
@@ -0,0 +1,89 @@
+{
+    "server": {
+        "OS-DCF:diskConfig": "AUTO",
+        "OS-EXT-AZ:availability_zone": "us-west",
+        "OS-EXT-SRV-ATTR:host": "compute",
+        "OS-EXT-SRV-ATTR:hostname": "new-server-test",
+        "OS-EXT-SRV-ATTR:hypervisor_hostname": "fake-mini",
+        "OS-EXT-SRV-ATTR:instance_name": "instance-00000001",
+        "OS-EXT-SRV-ATTR:kernel_id": "",
+        "OS-EXT-SRV-ATTR:launch_index": 0,
+        "OS-EXT-SRV-ATTR:ramdisk_id": "",
+        "OS-EXT-SRV-ATTR:reservation_id": "%(reservation_id)s",
+        "OS-EXT-SRV-ATTR:root_device_name": "/dev/sda",
+        "OS-EXT-STS:power_state": 1,
+        "OS-EXT-STS:task_state": null,
+        "OS-EXT-STS:vm_state": "active",
+        "OS-SRV-USG:launched_at": "%(strtime)s",
+        "OS-SRV-USG:terminated_at": null,
+        "accessIPv4": "1.2.3.4",
+        "accessIPv6": "80fe::",
+        "addresses": {
+            "private": [
+                {
+                    "OS-EXT-IPS-MAC:mac_addr": "aa:bb:cc:dd:ee:ff",
+                    "OS-EXT-IPS:type": "fixed",
+                    "addr": "192.168.0.3",
+                    "version": 4
+                }
+            ]
+        },
+        "adminPass": "seekr3t",
+        "config_drive": "",
+        "created": "%(isotime)s",
+        "description": null,
+        "flavor": {
+            "disk": 1,
+            "ephemeral": 0,
+            "extra_specs": {},
+            "original_name": "m1.tiny",
+            "ram": 512,
+            "swap": 0,
+            "vcpus": 1
+        },
+        "hostId": "2091634baaccdc4c5a1d57069c833e402921df696b7f970791b12ec6",
+        "host_status": "UP",
+        "id": "%(id)s",
+        "image": {
+            "id": "%(uuid)s",
+            "links": [
+                {
+                    "href": "%(compute_endpoint)s/images/%(uuid)s",
+                    "rel": "bookmark"
+                }
+            ]
+        },
+        "key_name": null,
+        "links": [
+            {
+                "href": "%(versioned_compute_endpoint)s/servers/%(uuid)s",
+                "rel": "self"
+            },
+            {
+                "href": "%(compute_endpoint)s/servers/%(id)s",
+                "rel": "bookmark"
+            }
+        ],
+        "locked": false,
+        "locked_reason": null,
+        "metadata": {
+            "meta_var": "meta_val"
+        },
+        "name": "foobar",
+        "os-extended-volumes:volumes_attached": [],
+        "progress": 0,
+        "security_groups": [
+            {
+                "name": "default"
+            }
+        ],
+        "server_groups": [],
+        "status": "ACTIVE",
+        "tags": [],
+        "tenant_id": "6f70656e737461636b20342065766572",
+        "trusted_image_certificates": null,
+        "updated": "%(isotime)s",
+        "user_data": "ZWNobyAiaGVsbG8gd29ybGQi",
+        "user_id": "fake"
+    }
+}
diff --git a/nova/tests/functional/api_sample_tests/api_samples/servers/v2.75/server-action-rebuild.json.tpl b/nova/tests/functional/api_sample_tests/api_samples/servers/v2.75/server-action-rebuild.json.tpl
new file mode 100644
index 0000000000..5b61faeed8
--- /dev/null
+++ b/nova/tests/functional/api_sample_tests/api_samples/servers/v2.75/server-action-rebuild.json.tpl
@@ -0,0 +1,14 @@
+{
+    "rebuild" : {
+        "accessIPv4" : "%(access_ip_v4)s",
+        "accessIPv6" : "%(access_ip_v6)s",
+        "OS-DCF:diskConfig": "AUTO",
+        "imageRef" : "%(uuid)s",
+        "name" : "%(name)s",
+        "adminPass" : "%(pass)s",
+        "metadata" : {
+            "meta_var" : "meta_val"
+        },
+        "user_data": "ZWNobyAiaGVsbG8gd29ybGQi"
+    }
+}
diff --git a/nova/tests/functional/api_sample_tests/api_samples/servers/v2.75/server-update-req.json.tpl b/nova/tests/functional/api_sample_tests/api_samples/servers/v2.75/server-update-req.json.tpl
new file mode 100644
index 0000000000..f1f436642f
--- /dev/null
+++ b/nova/tests/functional/api_sample_tests/api_samples/servers/v2.75/server-update-req.json.tpl
@@ -0,0 +1,9 @@
+{
+    "server": {
+        "accessIPv4": "%(access_ip_v4)s",
+        "accessIPv6": "%(access_ip_v6)s",
+        "OS-DCF:diskConfig": "AUTO",
+        "name": "new-server-test",
+        "description": "Sample description"
+    }
+}
diff --git a/nova/tests/functional/api_sample_tests/api_samples/servers/v2.75/server-update-resp.json.tpl b/nova/tests/functional/api_sample_tests/api_samples/servers/v2.75/server-update-resp.json.tpl
new file mode 100644
index 0000000000..920cd6e324
--- /dev/null
+++ b/nova/tests/functional/api_sample_tests/api_samples/servers/v2.75/server-update-resp.json.tpl
@@ -0,0 +1,88 @@
+{
+    "server": {
+        "OS-DCF:diskConfig": "AUTO",
+        "OS-EXT-AZ:availability_zone": "us-west",
+        "OS-EXT-SRV-ATTR:host": "compute",
+        "OS-EXT-SRV-ATTR:hostname": "new-server-test",
+        "OS-EXT-SRV-ATTR:hypervisor_hostname": "fake-mini",
+        "OS-EXT-SRV-ATTR:instance_name": "instance-00000001",
+        "OS-EXT-SRV-ATTR:kernel_id": "",
+        "OS-EXT-SRV-ATTR:launch_index": 0,
+        "OS-EXT-SRV-ATTR:ramdisk_id": "",
+        "OS-EXT-SRV-ATTR:reservation_id": "%(reservation_id)s",
+        "OS-EXT-SRV-ATTR:root_device_name": "/dev/sda",
+        "OS-EXT-SRV-ATTR:user_data": "IyEvYmluL2Jhc2gKL2Jpbi9zdQplY2hvICJJIGFtIGluIHlvdSEiCg==",
+        "OS-EXT-STS:power_state": 1,
+        "OS-EXT-STS:task_state": null,
+        "OS-EXT-STS:vm_state": "active",
+        "OS-SRV-USG:launched_at": "%(strtime)s",
+        "OS-SRV-USG:terminated_at": null,
+        "accessIPv4": "%(access_ip_v4)s",
+        "accessIPv6": "%(access_ip_v6)s",
+        "addresses": {
+            "private": [
+                {
+                    "OS-EXT-IPS-MAC:mac_addr": "aa:bb:cc:dd:ee:ff",
+                    "OS-EXT-IPS:type": "fixed",
+                    "addr": "192.168.0.3",
+                    "version": 4
+                }
+            ]
+        },
+        "config_drive": "",
+        "created": "%(isotime)s",
+        "description": "Sample description",
+        "flavor": {
+            "disk": 1,
+            "ephemeral": 0,
+            "extra_specs": {},
+            "original_name": "m1.tiny",
+            "ram": 512,
+            "swap": 0,
+            "vcpus": 1
+        },
+        "hostId": "%(hostid)s",
+        "host_status": "UP",
+        "id": "%(id)s",
+        "image": {
+            "id": "%(uuid)s",
+            "links": [
+                {
+                    "href": "%(compute_endpoint)s/images/%(uuid)s",
+                    "rel": "bookmark"
+                }
+            ]
+        },
+        "key_name": null,
+        "links": [
+            {
+                "href": "%(versioned_compute_endpoint)s/servers/%(id)s",
+                "rel": "self"
+            },
+            {
+                "href": "%(compute_endpoint)s/servers/%(id)s",
+                "rel": "bookmark"
+            }
+        ],
+        "locked": false,
+        "locked_reason": null,
+        "metadata": {
+            "My Server Name": "Apache1"
+        },
+        "name": "new-server-test",
+        "os-extended-volumes:volumes_attached": [],
+        "progress": 0,
+        "security_groups": [
+            {
+                "name": "default"
+            }
+        ],
+        "server_groups": [],
+        "status": "ACTIVE",
+        "tags": [],
+        "tenant_id": "6f70656e737461636b20342065766572",
+        "trusted_image_certificates": null,
+        "updated": "%(isotime)s",
+        "user_id": "fake"
+    }
+}
diff --git a/nova/tests/functional/api_sample_tests/test_flavor_manage.py b/nova/tests/functional/api_sample_tests/test_flavor_manage.py
index 6ecb1ddb41..05d360ffde 100644
--- a/nova/tests/functional/api_sample_tests/test_flavor_manage.py
+++ b/nova/tests/functional/api_sample_tests/test_flavor_manage.py
@@ -46,3 +46,8 @@ class FlavorManageSampleJsonTests2_55(FlavorManageSampleJsonTests):
     def test_update_flavor_description(self):
         response = self._do_put("flavors/1", "flavor-update-req", {})
         self._verify_response("flavor-update-resp", {}, response, 200)
+
+
+class FlavorManageSampleJsonTests2_75(FlavorManageSampleJsonTests2_55):
+    microversion = '2.75'
+    scenarios = [('v2_75', {'api_major_version': 'v2.1'})]
diff --git a/nova/tests/functional/api_sample_tests/test_flavors.py b/nova/tests/functional/api_sample_tests/test_flavors.py
index 09ac052b33..69cc2a9697 100644
--- a/nova/tests/functional/api_sample_tests/test_flavors.py
+++ b/nova/tests/functional/api_sample_tests/test_flavors.py
@@ -125,3 +125,11 @@ class FlavorsSampleJsonTest2_61(FlavorsSampleJsonTest):
         new_flavor.create()
         self.flavor_show_id = new_flavor_id
         self.subs = {'flavorid': new_flavor_id}
+
+
+class FlavorsSampleJsonTest2_75(FlavorsSampleJsonTest2_61):
+    microversion = '2.75'
+    scenarios = [('v2_75', {'api_major_version': 'v2.1'})]
+
+    def test_flavors_list(self):
+        pass
diff --git a/nova/tests/functional/api_sample_tests/test_servers.py b/nova/tests/functional/api_sample_tests/test_servers.py
index 1f7fad40e8..3519703b0c 100644
--- a/nova/tests/functional/api_sample_tests/test_servers.py
+++ b/nova/tests/functional/api_sample_tests/test_servers.py
@@ -623,6 +623,29 @@ class ServersUpdateSampleJson247Test(ServersUpdateSampleJsonTest):
     scenarios = [('v2_47', {'api_major_version': 'v2.1'})]
 
 
+class ServersSampleJson275Test(ServersUpdateSampleJsonTest):
+    microversion = '2.75'
+    scenarios = [('v2_75', {'api_major_version': 'v2.1'})]
+
+    def test_server_rebuild(self):
+        uuid = self._post_server()
+        image = fake.get_valid_image_id()
+        params = {
+            'uuid': image,
+            'name': 'foobar',
+            'pass': 'seekr3t',
+            'hostid': '[a-f0-9]+',
+            'access_ip_v4': '1.2.3.4',
+            'access_ip_v6': '80fe::',
+        }
+
+        resp = self._do_post('servers/%s/action' % uuid,
+                             'server-action-rebuild', params)
+        subs = params.copy()
+        del subs['uuid']
+        self._verify_response('server-action-rebuild-resp', subs, resp, 202)
+
+
 class ServerSortKeysJsonTests(ServersSampleBase):
     sample_dir = 'servers-sort'
 
diff --git a/nova/tests/unit/api/openstack/compute/test_agents.py b/nova/tests/unit/api/openstack/compute/test_agents.py
index c9e986d445..e17df7ee71 100644
--- a/nova/tests/unit/api/openstack/compute/test_agents.py
+++ b/nova/tests/unit/api/openstack/compute/test_agents.py
@@ -78,6 +78,7 @@ def fake_agent_build_create(context, values):
 class AgentsTestV21(test.NoDBTestCase):
     controller = agents_v21.AgentController()
     validation_error = exception.ValidationError
+    microversion = '2.1'
 
     def setUp(self):
         super(AgentsTestV21, self).setUp()
@@ -93,7 +94,7 @@ class AgentsTestV21(test.NoDBTestCase):
         self.req = self._get_http_request()
 
     def _get_http_request(self):
-        return fakes.HTTPRequest.blank('')
+        return fakes.HTTPRequest.blank('', version=self.microversion)
 
     def test_agents_create(self):
         body = {'agent': {'hypervisor': 'kvm',
@@ -210,7 +211,8 @@ class AgentsTestV21(test.NoDBTestCase):
 
     def _test_agents_list(self, query_string=None):
         req = fakes.HTTPRequest.blank('', use_admin_context=True,
-                                      query_string=query_string)
+                                      query_string=query_string,
+                                      version=self.microversion)
         res_dict = self.controller.index(req)
         agents_list = [{'hypervisor': 'kvm', 'os': 'win',
                      'architecture': 'x86',
@@ -244,7 +246,8 @@ class AgentsTestV21(test.NoDBTestCase):
 
     def test_agents_list_with_hypervisor(self):
         req = fakes.HTTPRequest.blank('', use_admin_context=True,
-                                      query_string='hypervisor=kvm')
+                                      query_string='hypervisor=kvm',
+                                      version=self.microversion)
         res_dict = self.controller.index(req)
         response = [{'hypervisor': 'kvm', 'os': 'win',
                      'architecture': 'x86',
@@ -264,7 +267,8 @@ class AgentsTestV21(test.NoDBTestCase):
     def test_agents_list_with_multi_hypervisor_filter(self):
         query_string = 'hypervisor=xen&hypervisor=kvm'
         req = fakes.HTTPRequest.blank('', use_admin_context=True,
-                                      query_string=query_string)
+                                      query_string=query_string,
+                                      version=self.microversion)
         res_dict = self.controller.index(req)
         response = [{'hypervisor': 'kvm', 'os': 'win',
                      'architecture': 'x86',
@@ -283,13 +287,15 @@ class AgentsTestV21(test.NoDBTestCase):
 
     def test_agents_list_query_allow_negative_int_as_string(self):
         req = fakes.HTTPRequest.blank('', use_admin_context=True,
-                                      query_string='hypervisor=-1')
+                                      query_string='hypervisor=-1',
+                                      version=self.microversion)
         res_dict = self.controller.index(req)
         self.assertEqual(res_dict, {'agents': []})
 
     def test_agents_list_query_allow_int_as_string(self):
         req = fakes.HTTPRequest.blank('', use_admin_context=True,
-                                      query_string='hypervisor=1')
+                                      query_string='hypervisor=1',
+                                      version=self.microversion)
         res_dict = self.controller.index(req)
         self.assertEqual(res_dict, {'agents': []})
 
@@ -300,7 +306,8 @@ class AgentsTestV21(test.NoDBTestCase):
     def test_agents_list_with_hypervisor_and_additional_filter(self):
         req = fakes.HTTPRequest.blank(
             '', use_admin_context=True,
-            query_string='hypervisor=kvm&additional_filter=abc')
+            query_string='hypervisor=kvm&additional_filter=abc',
+            version=self.microversion)
         res_dict = self.controller.index(req)
         response = [{'hypervisor': 'kvm', 'os': 'win',
                      'architecture': 'x86',
@@ -397,6 +404,33 @@ class AgentsTestV21(test.NoDBTestCase):
                           self.controller.update, self.req, 1, body=body)
 
 
+class AgentsTestV275(AgentsTestV21):
+    microversion = '2.75'
+
+    def test_agents_list_additional_filter_old_version(self):
+        req = fakes.HTTPRequest.blank(
+            '', use_admin_context=True,
+            query_string='additional_filter=abc',
+            version='2.74')
+        self.controller.index(req)
+
+    def test_agents_list_with_unknown_filter(self):
+        req = fakes.HTTPRequest.blank(
+            '', use_admin_context=True,
+            query_string='unknown_filter=abc',
+            version=self.microversion)
+        self.assertRaises(exception.ValidationError,
+                          self.controller.index, req)
+
+    def test_agents_list_with_hypervisor_and_additional_filter(self):
+        req = fakes.HTTPRequest.blank(
+            '', use_admin_context=True,
+            query_string='hypervisor=kvm&additional_filter=abc',
+            version=self.microversion)
+        self.assertRaises(exception.ValidationError,
+                          self.controller.index, req)
+
+
 class AgentsPolicyEnforcementV21(test.NoDBTestCase):
 
     def setUp(self):
diff --git a/nova/tests/unit/api/openstack/compute/test_flavor_manage.py b/nova/tests/unit/api/openstack/compute/test_flavor_manage.py
index 0a64d4d71a..e38705c39a 100644
--- a/nova/tests/unit/api/openstack/compute/test_flavor_manage.py
+++ b/nova/tests/unit/api/openstack/compute/test_flavor_manage.py
@@ -44,6 +44,20 @@ def fake_create(newflavor):
     newflavor["disabled"] = False
 
 
+def fake_create_without_swap(newflavor):
+    newflavor['flavorid'] = 1234
+    newflavor["name"] = 'test'
+    newflavor["memory_mb"] = 512
+    newflavor["vcpus"] = 2
+    newflavor["root_gb"] = 1
+    newflavor["ephemeral_gb"] = 1
+    newflavor["swap"] = 0
+    newflavor["rxtx_factor"] = 1.0
+    newflavor["is_public"] = True
+    newflavor["disabled"] = False
+    newflavor["extra_specs"] = {"key1": "value1"}
+
+
 class FlavorManageTestV21(test.NoDBTestCase):
     controller = flavormanage_v21.FlavorManageController()
     validation_error = exception.ValidationError
@@ -128,10 +142,11 @@ class FlavorManageTestV21(test.NoDBTestCase):
     def test_create_missing_disk(self):
         self._test_create_missing_parameter('disk')
 
-    def _create_flavor_success_case(self, body, req=None):
+    def _create_flavor_success_case(self, body, req=None, version=None):
         req = req if req else self._get_http_request(url=self.base_url)
         req.headers['Content-Type'] = 'application/json'
-        req.headers['X-OpenStack-Nova-API-Version'] = self.microversion
+        req.headers['X-OpenStack-Nova-API-Version'] = (
+            version or self.microversion)
         req.method = 'POST'
         req.body = jsonutils.dump_as_bytes(body)
         res = req.get_response(self.app)
@@ -466,6 +481,71 @@ class FlavorManageTestV2_61(FlavorManageTestV2_55):
         self.assertEqual({"key1": "value1"}, flavor['extra_specs'])
 
 
+class FlavorManageTestV2_75(FlavorManageTestV2_61):
+    microversion = '2.75'
+
+    FLAVOR_WITH_NO_SWAP = objects.Flavor(
+        name='test',
+        memory_mb=512,
+        vcpus=2,
+        root_gb=1,
+        ephemeral_gb=1,
+        flavorid=1234,
+        rxtx_factor=1.0,
+        disabled=False,
+        is_public=True,
+        swap=0,
+        extra_specs={"key1": "value1"}
+    )
+
+    def test_create_flavor_default_swap_value_old_version(self):
+        self.stub_out("nova.objects.Flavor.create", fake_create_without_swap)
+        del self.request_body['flavor']['swap']
+        resp = self._create_flavor_success_case(self.request_body,
+                                                version='2.74')
+        self.assertEqual(resp['flavor']['swap'], "")
+
+    @mock.patch('nova.objects.Flavor.get_by_flavor_id')
+    @mock.patch('nova.objects.Flavor.save')
+    def test_update_flavor_default_swap_value_old_version(self, mock_save,
+                                                          mock_get):
+        self.stub_out("nova.objects.Flavor.create", fake_create_without_swap)
+        del self.request_body['flavor']['swap']
+        flavor = self._create_flavor_success_case(self.request_body,
+                                                version='2.74')['flavor']
+        mock_get.return_value = self.FLAVOR_WITH_NO_SWAP
+        req = fakes.HTTPRequest.blank(
+            '/fake/flavors',
+            version='2.74')
+        req.method = 'PUT'
+        response = self.controller._update(
+            req, flavor['id'],
+            body={'flavor': {'description': None}})['flavor']
+        self.assertEqual(response['swap'], '')
+
+    @mock.patch('nova.objects.FlavorList.get_all')
+    def test_create_flavor_default_swap_value(self, mock_get):
+        self.stub_out("nova.objects.Flavor.create", fake_create_without_swap)
+        del self.request_body['flavor']['swap']
+        resp = self._create_flavor_success_case(self.request_body)
+        self.assertEqual(resp['flavor']['swap'], 0)
+
+    @mock.patch('nova.objects.Flavor.get_by_flavor_id')
+    @mock.patch('nova.objects.Flavor.save')
+    def test_update_flavor_default_swap_value(self, mock_save, mock_get):
+        self.stub_out("nova.objects.Flavor.create", fake_create_without_swap)
+        del self.request_body['flavor']['swap']
+        mock_get.return_value = self.FLAVOR_WITH_NO_SWAP
+        flavor = self._create_flavor_success_case(self.request_body)['flavor']
+        req = fakes.HTTPRequest.blank(
+            '/fake/flavors',
+            version=self.microversion)
+        response = self.controller._update(
+            req, flavor['id'],
+            body={'flavor': {'description': None}})['flavor']
+        self.assertEqual(response['swap'], 0)
+
+
 class PrivateFlavorManageTestV21(test.TestCase):
     controller = flavormanage_v21.FlavorManageController()
     base_url = '/v2/fake/flavors'
diff --git a/nova/tests/unit/api/openstack/compute/test_flavors.py b/nova/tests/unit/api/openstack/compute/test_flavors.py
index bdf339dd54..01f510ebed 100644
--- a/nova/tests/unit/api/openstack/compute/test_flavors.py
+++ b/nova/tests/unit/api/openstack/compute/test_flavors.py
@@ -619,7 +619,7 @@ class FlavorsTestV21(test.TestCase):
             '/flavors/detail', expected)
 
     def _test_list_flavors_with_allowed_filter(
-        self, url, expected=None):
+        self, url, expected=None, req=None):
         controller_list = self.controller.index
         if 'detail' in url:
             controller_list = self.controller.detail
@@ -647,7 +647,7 @@ class FlavorsTestV21(test.TestCase):
         if 'detail' in url and self.expect_extra_specs:
             expected_resp[0]['extra_specs'] = (
                 fakes.FLAVORS['2'].extra_specs)
-        req = self._build_request(url + '&limit=1&marker=1')
+        req = req or self._build_request(url + '&limit=1&marker=1')
         result = controller_list(req)
         self.assertEqual(expected_resp, result['flavors'])
 
@@ -791,6 +791,110 @@ class FlavorsTestV2_61(FlavorsTestV2_55):
     expect_extra_specs = True
 
 
+class FlavorsTestV2_75(FlavorsTestV2_61):
+    microversion = '2.75'
+
+    FLAVOR_WITH_NO_SWAP = objects.Flavor(
+        id=1,
+        name='flavor 1',
+        memory_mb=256,
+        vcpus=1,
+        root_gb=10,
+        ephemeral_gb=20,
+        flavorid='1',
+        rxtx_factor=1.0,
+        vcpu_weight=None,
+        disabled=False,
+        is_public=True,
+        swap=0,
+        description=None,
+        extra_specs={"key1": "value1", "key2": "value2"}
+    )
+
+    def test_list_flavors_with_additional_filter_old_version(self):
+        req = self.fake_request.blank(
+            '/fake/flavors?limit=1&marker=1&additional=something',
+            version='2.74')
+        self._test_list_flavors_with_allowed_filter(
+            '/fake/flavors?limit=1&marker=1&additional=something', req=req)
+
+    def test_list_detail_flavors_with_additional_filter_old_version(self):
+        expected = {
+            "ram": fakes.FLAVORS['2'].memory_mb,
+            "disk": fakes.FLAVORS['2'].root_gb,
+            "vcpus": fakes.FLAVORS['2'].vcpus,
+            "os-flavor-access:is_public": True,
+            "rxtx_factor": '',
+            "OS-FLV-EXT-DATA:ephemeral": fakes.FLAVORS['2'].ephemeral_gb,
+            "OS-FLV-DISABLED:disabled": fakes.FLAVORS['2'].disabled,
+            "swap": fakes.FLAVORS['2'].swap
+        }
+        req = self.fake_request.blank(
+            '/fake/flavors?limit=1&marker=1&additional=something',
+            version='2.74')
+        self._test_list_flavors_with_allowed_filter(
+            '/fake/flavors/detail?limit=1&marker=1&additional=something',
+            expected, req=req)
+
+    def _test_list_flavors_with_additional_filter(self, url):
+        controller_list = self.controller.index
+        if 'detail' in url:
+            controller_list = self.controller.detail
+        req = self._build_request(url)
+        self.assertRaises(exception.ValidationError,
+                          controller_list, req)
+
+    def test_list_flavors_with_additional_filter(self):
+        self._test_list_flavors_with_additional_filter(
+            '/flavors?limit=1&marker=1&additional=something')
+
+    def test_list_detail_flavors_with_additional_filter(self):
+        self._test_list_flavors_with_additional_filter(
+            '/flavors/detail?limit=1&marker=1&additional=something')
+
+    @mock.patch('nova.objects.FlavorList.get_all')
+    def test_list_flavor_detail_default_swap_value_old_version(self, mock_get):
+        mock_get.return_value = objects.FlavorList(
+            objects=[self.FLAVOR_WITH_NO_SWAP])
+        req = self.fake_request.blank(
+            '/fake/flavors/detail?limit=1',
+            version='2.74')
+        response = self.controller.detail(req)
+        response_list = response["flavors"]
+        self.assertEqual(response_list[0]['swap'], "")
+
+    @mock.patch('nova.objects.Flavor.get_by_flavor_id')
+    def test_show_flavor_default_swap_value_old_version(self, mock_get):
+        mock_get.return_value = self.FLAVOR_WITH_NO_SWAP
+        req = self.fake_request.blank(
+            '/fake/flavors/detail?limit=1',
+            version='2.74')
+        response = self.controller.show(req, 1)
+        response_list = response["flavor"]
+        self.assertEqual(response_list['swap'], "")
+
+    @mock.patch('nova.objects.FlavorList.get_all')
+    def test_list_flavor_detail_default_swap_value(self, mock_get):
+        mock_get.return_value = objects.FlavorList(
+            objects=[self.FLAVOR_WITH_NO_SWAP])
+        req = self.fake_request.blank(
+            '/fake/flavors/detail?limit=1',
+            version=self.microversion)
+        response = self.controller.detail(req)
+        response_list = response["flavors"]
+        self.assertEqual(response_list[0]['swap'], 0)
+
+    @mock.patch('nova.objects.Flavor.get_by_flavor_id')
+    def test_show_flavor_default_swap_value(self, mock_get):
+        mock_get.return_value = self.FLAVOR_WITH_NO_SWAP
+        req = self.fake_request.blank(
+            '/fake/flavors/detail?limit=1',
+            version=self.microversion)
+        response = self.controller.show(req, 1)
+        response_list = response["flavor"]
+        self.assertEqual(response_list['swap'], 0)
+
+
 class DisabledFlavorsWithRealDBTestV21(test.TestCase):
     """Tests that disabled flavors should not be shown nor listed."""
     Controller = flavors_v21.FlavorsController
diff --git a/nova/tests/unit/api/openstack/compute/test_hypervisors.py b/nova/tests/unit/api/openstack/compute/test_hypervisors.py
index 1c47f8c6af..cd343608e2 100644
--- a/nova/tests/unit/api/openstack/compute/test_hypervisors.py
+++ b/nova/tests/unit/api/openstack/compute/test_hypervisors.py
@@ -1387,3 +1387,53 @@ class HypervisorsTestV253(HypervisorsTestV252):
                 uuids.hyper1)
         self.assertRaises(exception.ValidationError,
                           self.controller.show, req, uuids.hyper1)
+
+
+class HypervisorsTestV275(HypervisorsTestV253):
+    api_version = '2.75'
+
+    def _test_servers_with_no_server(self, func, version=None, **kwargs):
+        """Tests GET APIs return 'servers' field in response even
+           no servers on hypervisors.
+        """
+        with mock.patch.object(self.controller.host_api,
+                               'instance_get_all_by_host',
+                               return_value=[]):
+            req = fakes.HTTPRequest.blank('/os-hypervisors?with_servers=1',
+                                          use_admin_context=True,
+                                          version=version or self.api_version)
+            result = func(req, **kwargs)
+        return result
+
+    def test_list_servers_with_no_server_old_version(self):
+        result = self._test_servers_with_no_server(self.controller.index,
+                                                   version='2.74')
+        for hyper in result['hypervisors']:
+            self.assertNotIn('servers', hyper)
+
+    def test_list_detail_servers_with_no_server_old_version(self):
+        result = self._test_servers_with_no_server(self.controller.detail,
+                                                   version='2.74')
+        for hyper in result['hypervisors']:
+            self.assertNotIn('servers', hyper)
+
+    def test_show_servers_with_no_server_old_version(self):
+        result = self._test_servers_with_no_server(self.controller.show,
+                                                   version='2.74',
+                                                   id=uuids.hyper1)
+        self.assertNotIn('servers', result['hypervisor'])
+
+    def test_servers_with_no_server(self):
+        result = self._test_servers_with_no_server(self.controller.index)
+        for hyper in result['hypervisors']:
+            self.assertEqual(0, len(hyper['servers']))
+
+    def test_list_detail_servers_with_empty_server_list(self):
+        result = self._test_servers_with_no_server(self.controller.detail)
+        for hyper in result['hypervisors']:
+            self.assertEqual(0, len(hyper['servers']))
+
+    def test_show_servers_with_empty_server_list(self):
+        result = self._test_servers_with_no_server(self.controller.show,
+                                                   id=uuids.hyper1)
+        self.assertEqual(0, len(result['hypervisor']['servers']))
diff --git a/nova/tests/unit/api/openstack/compute/test_keypairs.py b/nova/tests/unit/api/openstack/compute/test_keypairs.py
index af8e0696bf..fb8f9cb534 100644
--- a/nova/tests/unit/api/openstack/compute/test_keypairs.py
+++ b/nova/tests/unit/api/openstack/compute/test_keypairs.py
@@ -605,3 +605,43 @@ class KeypairsTestV235(test.TestCase):
         mock_kp_get.assert_called_once_with(
             req.environ['nova.context'], 'fake_user',
             limit=None, marker=None)
+
+
+class KeypairsTestV275(test.TestCase):
+    def setUp(self):
+        super(KeypairsTestV275, self).setUp()
+        self.controller = keypairs_v21.KeypairController()
+
+    @mock.patch("nova.db.api.key_pair_get_all_by_user")
+    @mock.patch('nova.objects.KeyPair.get_by_name')
+    def test_keypair_list_additional_param_old_version(self, mock_get_by_name,
+                                                       mock_kp_get):
+        req = fakes.HTTPRequest.blank(
+            '/os-keypairs?unknown=3',
+            version='2.74', use_admin_context=True)
+        self.controller.index(req)
+        self.controller.show(req, 1)
+        with mock.patch.object(self.controller.api,
+                               'delete_key_pair'):
+            self.controller.delete(req, 1)
+
+    def test_keypair_list_additional_param(self):
+        req = fakes.HTTPRequest.blank(
+            '/os-keypairs?unknown=3',
+            version='2.75', use_admin_context=True)
+        self.assertRaises(exception.ValidationError, self.controller.index,
+                          req)
+
+    def test_keypair_show_additional_param(self):
+        req = fakes.HTTPRequest.blank(
+            '/os-keypairs?unknown=3',
+            version='2.75', use_admin_context=True)
+        self.assertRaises(exception.ValidationError, self.controller.show,
+                          req, 1)
+
+    def test_keypair_delete_additional_param(self):
+        req = fakes.HTTPRequest.blank(
+            '/os-keypairs?unknown=3',
+            version='2.75', use_admin_context=True)
+        self.assertRaises(exception.ValidationError, self.controller.delete,
+                          req, 1)
diff --git a/nova/tests/unit/api/openstack/compute/test_limits.py b/nova/tests/unit/api/openstack/compute/test_limits.py
index c10c35dc5e..7bff0d1823 100644
--- a/nova/tests/unit/api/openstack/compute/test_limits.py
+++ b/nova/tests/unit/api/openstack/compute/test_limits.py
@@ -492,3 +492,32 @@ class LimitsControllerTestV239(BaseLimitTestSuite):
                 },
             }
             self.assertEqual(expected_response, response)
+
+
+class LimitsControllerTestV275(BaseLimitTestSuite):
+    def setUp(self):
+        super(LimitsControllerTestV275, self).setUp()
+        self.controller = limits_v21.LimitsController()
+
+    def test_index_additional_query_param_old_version(self):
+        absolute_limits = {
+            "metadata_items": 1,
+        }
+        req = fakes.HTTPRequest.blank("/?unkown=fake",
+                                       version='2.74')
+
+        def _get_project_quotas(context, project_id, usages=True):
+            return {k: dict(limit=v, in_use=v // 2)
+                    for k, v in absolute_limits.items()}
+
+        with mock.patch('nova.quota.QUOTAS.get_project_quotas') as \
+                get_project_quotas:
+            get_project_quotas.side_effect = _get_project_quotas
+            self.controller.index(req)
+
+    def test_index_additional_query_param(self):
+        req = fakes.HTTPRequest.blank("/?unkown=fake",
+                                      version='2.75')
+        self.assertRaises(
+            exception.ValidationError,
+            self.controller.index, req=req)
diff --git a/nova/tests/unit/api/openstack/compute/test_quotas.py b/nova/tests/unit/api/openstack/compute/test_quotas.py
index c8d6e86c8e..3bb987cec8 100644
--- a/nova/tests/unit/api/openstack/compute/test_quotas.py
+++ b/nova/tests/unit/api/openstack/compute/test_quotas.py
@@ -675,3 +675,53 @@ class QuotaSetsTestV257(QuotaSetsTestV236):
     def setUp(self):
         super(QuotaSetsTestV257, self).setUp()
         self.filtered_quotas.extend(quotas_v21.FILTERED_QUOTAS_2_57)
+
+
+class QuotaSetsTestV275(QuotaSetsTestV257):
+    microversion = '2.75'
+
+    @mock.patch('nova.objects.Quotas.destroy_all_by_project')
+    @mock.patch('nova.objects.Quotas.create_limit')
+    @mock.patch('nova.quota.QUOTAS.get_settable_quotas')
+    @mock.patch('nova.quota.QUOTAS.get_project_quotas')
+    def test_quota_additional_filter_older_version(self, mock_quotas,
+                                                   mock_settable,
+                                                   mock_create_limit,
+                                                   mock_destroy):
+        mock_quotas.return_value = self.quotas
+        mock_settable.return_value = {'cores': {'maximum': -1, 'minimum': 0}}
+        query_string = 'additional_filter=2'
+        req = fakes.HTTPRequest.blank('', version='2.74',
+                                      query_string=query_string)
+        self.controller.show(req, 1234)
+        self.controller.update(req, 1234, body={'quota_set': {}})
+        self.controller.detail(req, 1234)
+        self.controller.delete(req, 1234)
+
+    def test_quota_update_additional_filter(self):
+        query_string = 'user_id=1&additional_filter=2'
+        req = fakes.HTTPRequest.blank('', version=self.microversion,
+                                      query_string=query_string)
+        self.assertRaises(exception.ValidationError, self.controller.update,
+                          req, 'update_me', body={'quota_set': {}})
+
+    def test_quota_show_additional_filter(self):
+        query_string = 'user_id=1&additional_filter=2'
+        req = fakes.HTTPRequest.blank('', version=self.microversion,
+                                      query_string=query_string)
+        self.assertRaises(exception.ValidationError, self.controller.show,
+                          req, 1234)
+
+    def test_quota_detail_additional_filter(self):
+        query_string = 'user_id=1&additional_filter=2'
+        req = fakes.HTTPRequest.blank('', version=self.microversion,
+                                      query_string=query_string)
+        self.assertRaises(exception.ValidationError, self.controller.detail,
+                          req, 1234)
+
+    def test_quota_delete_additional_filter(self):
+        query_string = 'user_id=1&additional_filter=2'
+        req = fakes.HTTPRequest.blank('', version=self.microversion,
+                                      query_string=query_string)
+        self.assertRaises(exception.ValidationError, self.controller.delete,
+                          req, 1234)
diff --git a/nova/tests/unit/api/openstack/compute/test_server_groups.py b/nova/tests/unit/api/openstack/compute/test_server_groups.py
index 9793bcc752..f99016a0aa 100644
--- a/nova/tests/unit/api/openstack/compute/test_server_groups.py
+++ b/nova/tests/unit/api/openstack/compute/test_server_groups.py
@@ -84,6 +84,7 @@ def server_group_db(sg):
 class ServerGroupTestV21(test.NoDBTestCase):
     USES_DB_SELF = True
     validation_error = exception.ValidationError
+    wsgi_api_version = '2.1'
 
     def setUp(self):
         super(ServerGroupTestV21, self).setUp()
@@ -306,7 +307,7 @@ class ServerGroupTestV21(test.NoDBTestCase):
 
         mock_get_by_project.return_value = return_tenant_server_groups()
 
-        path = '/os-server-groups?all_projects=True'
+        path = path or '/os-server-groups?all_projects=True'
         if limited:
             path += limited
         req = fakes.HTTPRequest.blank(path, version=api_version)
@@ -548,16 +549,19 @@ class ServerGroupTestV21(test.NoDBTestCase):
                           self.controller.create, self.req, body=body)
 
     def test_list_server_group_by_tenant(self):
-        self._test_list_server_group_by_tenant(api_version='2.1')
+        self._test_list_server_group_by_tenant(
+            api_version=self.wsgi_api_version)
 
     def test_list_server_group_all_v20(self):
         self._test_list_server_group_all(api_version='2.0')
 
     def test_list_server_group_all(self):
-        self._test_list_server_group_all(api_version='2.1')
+        self._test_list_server_group_all(
+            api_version=self.wsgi_api_version)
 
     def test_list_server_group_offset_and_limit(self):
-        self._test_list_server_group_offset_and_limit(api_version='2.1')
+        self._test_list_server_group_offset_and_limit(
+            api_version=self.wsgi_api_version)
 
     def test_list_server_groups_rbac_default(self):
         # test as admin
@@ -567,59 +571,59 @@ class ServerGroupTestV21(test.NoDBTestCase):
         self.controller.index(self.req)
 
     def test_list_server_group_multiple_param(self):
-        self._test_list_server_group(api_version='2.1',
+        self._test_list_server_group(api_version=self.wsgi_api_version,
             limited='&offset=2&limit=2&limit=1&offset=1',
             path='/os-server-groups?all_projects=False&all_projects=True')
 
     def test_list_server_group_additional_param(self):
-        self._test_list_server_group(api_version='2.1',
+        self._test_list_server_group(api_version=self.wsgi_api_version,
             limited='&offset=1&limit=1',
             path='/os-server-groups?dummy=False&all_projects=True')
 
     def test_list_server_group_param_as_int(self):
-        self._test_list_server_group(api_version='2.1',
+        self._test_list_server_group(api_version=self.wsgi_api_version,
             limited='&offset=1&limit=1',
             path='/os-server-groups?all_projects=1')
 
     def test_list_server_group_negative_int_as_offset(self):
         self.assertRaises(exception.ValidationError,
             self._test_list_server_group,
-            api_version='2.1',
+            api_version=self.wsgi_api_version,
             limited='&offset=-1',
             path='/os-server-groups?all_projects=1')
 
     def test_list_server_group_string_int_as_offset(self):
         self.assertRaises(exception.ValidationError,
             self._test_list_server_group,
-            api_version='2.1',
+            api_version=self.wsgi_api_version,
             limited='&offset=dummy',
             path='/os-server-groups?all_projects=1')
 
     def test_list_server_group_multiparam_string_as_offset(self):
         self.assertRaises(exception.ValidationError,
             self._test_list_server_group,
-            api_version='2.1',
+            api_version=self.wsgi_api_version,
             limited='&offset=dummy&offset=1',
             path='/os-server-groups?all_projects=1')
 
     def test_list_server_group_negative_int_as_limit(self):
         self.assertRaises(exception.ValidationError,
             self._test_list_server_group,
-            api_version='2.1',
+            api_version=self.wsgi_api_version,
             limited='&limit=-1',
             path='/os-server-groups?all_projects=1')
 
     def test_list_server_group_string_int_as_limit(self):
         self.assertRaises(exception.ValidationError,
             self._test_list_server_group,
-            api_version='2.1',
+            api_version=self.wsgi_api_version,
             limited='&limit=dummy',
             path='/os-server-groups?all_projects=1')
 
     def test_list_server_group_multiparam_string_as_limit(self):
         self.assertRaises(exception.ValidationError,
             self._test_list_server_group,
-            api_version='2.1',
+            api_version=self.wsgi_api_version,
             limited='&limit=dummy&limit=1',
             path='/os-server-groups?all_projects=1')
 
@@ -848,3 +852,18 @@ class ServerGroupTestV264(ServerGroupTestV213):
         sgroup = server_group_template(unknown='unknown')
         self.assertRaises(self.validation_error, self.controller.create,
                           req, body={'server_group': sgroup})
+
+
+class ServerGroupTestV275(ServerGroupTestV264):
+    wsgi_api_version = '2.75'
+
+    def test_list_server_group_additional_param_old_version(self):
+        self._test_list_server_group(api_version='2.74',
+            limited='&offset=1&limit=1',
+            path='/os-server-groups?dummy=False&all_projects=True')
+
+    def test_list_server_group_additional_param(self):
+        req = fakes.HTTPRequest.blank('/os-server-groups?dummy=False',
+                                      version=self.wsgi_api_version)
+        self.assertRaises(self.validation_error, self.controller.index,
+                          req)
diff --git a/nova/tests/unit/api/openstack/compute/test_serversV21.py b/nova/tests/unit/api/openstack/compute/test_serversV21.py
index b1040a013f..85f65327e9 100644
--- a/nova/tests/unit/api/openstack/compute/test_serversV21.py
+++ b/nova/tests/unit/api/openstack/compute/test_serversV21.py
@@ -15,6 +15,7 @@
 #    under the License.
 
 import collections
+import copy
 import datetime
 import ddt
 
@@ -39,6 +40,7 @@ from nova.api.openstack import api_version_request
 from nova.api.openstack import common
 from nova.api.openstack import compute
 from nova.api.openstack.compute import ips
+from nova.api.openstack.compute.schemas import servers as servers_schema
 from nova.api.openstack.compute import servers
 from nova.api.openstack.compute import views
 from nova.api.openstack import wsgi as os_wsgi
@@ -83,6 +85,23 @@ UUID2 = '00000000-0000-0000-0000-000000000002'
 INSTANCE_IDS = {FAKE_UUID: 1}
 FIELDS = instance_obj.INSTANCE_DEFAULT_FIELDS
 
+GET_ONLY_FIELDS = ['OS-EXT-AZ:availability_zone', 'config_drive',
+                   'OS-EXT-SRV-ATTR:host',
+                   'OS-EXT-SRV-ATTR:hypervisor_hostname',
+                   'OS-EXT-SRV-ATTR:instance_name',
+                   'OS-EXT-SRV-ATTR:hostname',
+                   'OS-EXT-SRV-ATTR:kernel_id',
+                   'OS-EXT-SRV-ATTR:launch_index',
+                   'OS-EXT-SRV-ATTR:ramdisk_id',
+                   'OS-EXT-SRV-ATTR:reservation_id',
+                   'OS-EXT-SRV-ATTR:root_device_name',
+                   'OS-EXT-SRV-ATTR:user_data', 'host_status',
+                   'key_name', 'OS-SRV-USG:launched_at',
+                   'OS-SRV-USG:terminated_at',
+                   'OS-EXT-STS:task_state', 'OS-EXT-STS:vm_state',
+                   'OS-EXT-STS:power_state', 'security_groups',
+                   'os-extended-volumes:volumes_attached']
+
 
 def instance_update_and_get_original(context, instance_uuid, values,
                                      columns_to_join=None,
@@ -2655,6 +2674,128 @@ class ServersControllerTestV273(ControllerTest):
             cell_down_support=False, all_tenants=False)
 
 
+class ServersControllerTestV275(ControllerTest):
+    wsgi_api_version = '2.75'
+    image_uuid = '76fa36fc-c930-4bf3-8c8a-ea2a2420deb6'
+
+    @mock.patch('nova.compute.api.API.get_all')
+    def test_get_servers_additional_query_param_old_version(self, mock_get):
+        req = fakes.HTTPRequest.blank('/fake/servers?unknown=1',
+                                      use_admin_context=True,
+                                      version='2.74')
+        self.controller.index(req)
+
+    @mock.patch('nova.compute.api.API.get_all')
+    def test_get_servers_ignore_sort_key_old_version(self, mock_get):
+        req = fakes.HTTPRequest.blank('/fake/servers?sort_key=deleted',
+                                      use_admin_context=True,
+                                      version='2.74')
+        self.controller.index(req)
+
+    def test_get_servers_additional_query_param(self):
+        req = fakes.HTTPRequest.blank('/fake/servers?unknown=1',
+                                      use_admin_context=True,
+                                      version=self.wsgi_api_version)
+        self.assertRaises(exception.ValidationError, self.controller.index,
+                          req)
+
+    def test_get_servers_previously_ignored_sort_key(self):
+        for s_ignore in servers_schema.SERVER_LIST_IGNORE_SORT_KEY_V273:
+            req = fakes.HTTPRequest.blank(
+                '/fake/servers?sort_key=%s' % s_ignore,
+                use_admin_context=True,
+                version=self.wsgi_api_version)
+            self.assertRaises(exception.ValidationError, self.controller.index,
+                              req)
+
+    def test_get_servers_additional_sort_key(self):
+        req = fakes.HTTPRequest.blank('/fake/servers?sort_key=unknown',
+                                      use_admin_context=True,
+                                      version=self.wsgi_api_version)
+        self.assertRaises(exception.ValidationError, self.controller.index,
+                          req)
+
+    def test_update_response_no_show_server_only_attributes_old_version(self):
+        # There are some old server attributes which were added only for
+        # GET server APIs not for PUT. GET server and PUT server share the
+        # same view builder method SHOW() to build the response, So make sure
+        # attributes which are not supposed to be included for PUT
+        # response are not present.
+        body = {'server': {'name': 'server_test'}}
+        req = fakes.HTTPRequest.blank('/fake/servers?unknown=1',
+                                      use_admin_context=True,
+                                      version='2.74')
+        res_dict = self.controller.update(req, FAKE_UUID, body=body)
+        for field in GET_ONLY_FIELDS:
+            self.assertNotIn(field, res_dict['server'])
+        for items in res_dict['server']['addresses'].values():
+            for item in items:
+                self.assertNotIn('OS-EXT-IPS:type', item)
+                self.assertNotIn('OS-EXT-IPS-MAC:mac_addr', item)
+
+    def test_update_response_has_show_server_all_attributes(self):
+        body = {'server': {'name': 'server_test'}}
+        req = fakes.HTTPRequest.blank('/fake/servers?unknown=1',
+                                      use_admin_context=True,
+                                      version=self.wsgi_api_version)
+        res_dict = self.controller.update(req, FAKE_UUID, body=body)
+        for field in GET_ONLY_FIELDS:
+            self.assertIn(field, res_dict['server'])
+        for items in res_dict['server']['addresses'].values():
+            for item in items:
+                self.assertIn('OS-EXT-IPS:type', item)
+                self.assertIn('OS-EXT-IPS-MAC:mac_addr', item)
+
+    def test_rebuild_response_no_show_server_only_attributes_old_version(self):
+        # There are some old server attributes which were added only for
+        # GET server APIs not for Rebuild. GET server and Rebuild server share
+        # same view builder method SHOW() to build the response, So make sure
+        # the attributes which are not supposed to be included for Rebuild
+        # response are not present.
+        body = {'rebuild': {"imageRef": self.image_uuid}}
+        req = fakes.HTTPRequest.blank('/fake/servers?unknown=1',
+                                      use_admin_context=True,
+                                      version='2.74')
+        fake_get = fakes.fake_compute_get(
+            vm_state=vm_states.ACTIVE,
+            project_id=req.environ['nova.context'].project_id,
+            user_id=req.environ['nova.context'].user_id)
+        self.mock_get.side_effect = fake_get
+
+        res_dict = self.controller._action_rebuild(req, FAKE_UUID,
+                                                   body=body).obj
+        get_only_fields_Rebuild = copy.deepcopy(GET_ONLY_FIELDS)
+        get_only_fields_Rebuild.remove('key_name')
+        for field in get_only_fields_Rebuild:
+            self.assertNotIn(field, res_dict['server'])
+        for items in res_dict['server']['addresses'].values():
+            for item in items:
+                self.assertNotIn('OS-EXT-IPS:type', item)
+                self.assertNotIn('OS-EXT-IPS-MAC:mac_addr', item)
+
+    def test_rebuild_response_has_show_server_all_attributes(self):
+        body = {'rebuild': {"imageRef": self.image_uuid}}
+        req = fakes.HTTPRequest.blank('/fake/servers?unknown=1',
+                                      use_admin_context=True,
+                                      version=self.wsgi_api_version)
+        fake_get = fakes.fake_compute_get(
+            vm_state=vm_states.ACTIVE,
+            project_id=req.environ['nova.context'].project_id,
+            user_id=req.environ['nova.context'].user_id)
+        self.mock_get.side_effect = fake_get
+        res_dict = self.controller._action_rebuild(req, FAKE_UUID,
+                                                   body=body).obj
+        for field in GET_ONLY_FIELDS:
+            if field == 'OS-EXT-SRV-ATTR:user_data':
+                self.assertNotIn(field, res_dict['server'])
+                field = 'user_data'
+            self.assertIn(field, res_dict['server'])
+        for items in res_dict['server']['addresses'].values():
+            for item in items:
+                self.assertIn('OS-EXT-IPS:type', item)
+                self.assertIn('OS-EXT-IPS-MAC:mac_addr', item)
+
+
 class ServersControllerDeleteTest(ControllerTest):
 
     def setUp(self):
@@ -3007,22 +3148,9 @@ class ServersControllerRebuildInstanceTest(ControllerTest):
 
         body = self.controller._action_rebuild(self.req, FAKE_UUID,
                                                body=body).obj
-
-        get_only_fields = ['OS-EXT-AZ:availability_zone', 'config_drive',
-                           'OS-EXT-SRV-ATTR:host',
-                           'OS-EXT-SRV-ATTR:hypervisor_hostname',
-                           'OS-EXT-SRV-ATTR:instance_name',
-                           'OS-EXT-SRV-ATTR:hostname'
-                           'OS-EXT-SRV-ATTR:kernel_id',
-                           'OS-EXT-SRV-ATTR:launch_index',
-                           'OS-EXT-SRV-ATTR:ramdisk_id',
-                           'OS-EXT-SRV-ATTR:reservation_id',
-                           'OS-EXT-SRV-ATTR:root_device_name',
-                           'OS-EXT-SRV-ATTR:user_data', 'host_status',
-                           'OS-SRV-USG:launched_at',
-                           'OS-SRV-USG:terminated_at']
-        if not self.expected_key_name:
-            get_only_fields.append('key_name')
+        get_only_fields = copy.deepcopy(GET_ONLY_FIELDS)
+        if self.expected_key_name:
+            get_only_fields.remove('key_name')
         for field in get_only_fields:
             self.assertNotIn(field, body['server'])
 
@@ -3637,20 +3765,7 @@ class ServersControllerUpdateTest(ControllerTest):
         body = {'server': {'name': 'server_test'}}
         req = self._get_request(body)
         res_dict = self.controller.update(req, FAKE_UUID, body=body)
-        get_only_fields = ['OS-EXT-AZ:availability_zone', 'config_drive',
-                           'OS-EXT-SRV-ATTR:host',
-                           'OS-EXT-SRV-ATTR:hypervisor_hostname',
-                           'OS-EXT-SRV-ATTR:instance_name',
-                           'OS-EXT-SRV-ATTR:hostname'
-                           'OS-EXT-SRV-ATTR:kernel_id',
-                           'OS-EXT-SRV-ATTR:launch_index',
-                           'OS-EXT-SRV-ATTR:ramdisk_id',
-                           'OS-EXT-SRV-ATTR:reservation_id',
-                           'OS-EXT-SRV-ATTR:root_device_name',
-                           'OS-EXT-SRV-ATTR:user_data', 'host_status',
-                           'key_name', 'OS-SRV-USG:launched_at',
-                           'OS-SRV-USG:terminated_at']
-        for field in get_only_fields:
+        for field in GET_ONLY_FIELDS:
             self.assertNotIn(field, res_dict['server'])
 
     def test_update_server_name_too_long(self):
diff --git a/nova/tests/unit/api/openstack/compute/test_services.py b/nova/tests/unit/api/openstack/compute/test_services.py
index 67ee253f28..f9860d46c5 100644
--- a/nova/tests/unit/api/openstack/compute/test_services.py
+++ b/nova/tests/unit/api/openstack/compute/test_services.py
@@ -1323,6 +1323,27 @@ class ServicesTestV253(test.TestCase):
                          six.text_type(ex))
 
 
+class ServicesTestV275(test.TestCase):
+    wsgi_api_version = '2.75'
+
+    def setUp(self):
+        super(ServicesTestV275, self).setUp()
+        self.controller = services_v21.ServiceController()
+
+    def test_services_list_with_additional_filter_old_version(self):
+        url = '/fake/services?host=host1&binary=nova-compute&unknown=abc'
+        req = fakes.HTTPRequest.blank(url, use_admin_context=True,
+                                      version='2.74')
+        self.controller.index(req)
+
+    def test_services_list_with_additional_filter(self):
+        url = '/fake/services?host=host1&binary=nova-compute&unknown=abc'
+        req = fakes.HTTPRequest.blank(url, use_admin_context=True,
+                                      version=self.wsgi_api_version)
+        self.assertRaises(exception.ValidationError,
+            self.controller.index, req)
+
+
 class ServicesPolicyEnforcementV21(test.NoDBTestCase):
 
     def setUp(self):
diff --git a/nova/tests/unit/api/openstack/compute/test_simple_tenant_usage.py b/nova/tests/unit/api/openstack/compute/test_simple_tenant_usage.py
index e41e671fff..3fbe65742f 100644
--- a/nova/tests/unit/api/openstack/compute/test_simple_tenant_usage.py
+++ b/nova/tests/unit/api/openstack/compute/test_simple_tenant_usage.py
@@ -454,6 +454,38 @@ class SimpleTenantUsageTestV40(SimpleTenantUsageTestV21):
         self._test_show_duplicate_query_parameters_validation(params)
 
 
+class SimpleTenantUsageTestV2_75(SimpleTenantUsageTestV40):
+    version = '2.75'
+
+    def test_index_additional_query_param_old_version(self):
+        req = fakes.HTTPRequest.blank('?start=%s&end=%s&additional=1' %
+                (START.isoformat(), STOP.isoformat()),
+                version='2.74')
+        res = self.controller.index(req)
+        self.assertIn('tenant_usages', res)
+
+    def test_index_additional_query_parameters(self):
+        req = fakes.HTTPRequest.blank('?start=%s&end=%s&additional=1' %
+                (START.isoformat(), STOP.isoformat()),
+                version=self.version)
+        self.assertRaises(exception.ValidationError, self.controller.index,
+                          req)
+
+    def test_show_additional_query_param_old_version(self):
+        req = fakes.HTTPRequest.blank('?start=%s&end=%s&additional=1' %
+                (START.isoformat(), STOP.isoformat()),
+                version='2.74')
+        res = self.controller.show(req, 1)
+        self.assertIn('tenant_usage', res)
+
+    def test_show_additional_query_parameters(self):
+        req = fakes.HTTPRequest.blank('?start=%s&end=%s&additional=1' %
+                (START.isoformat(), STOP.isoformat()),
+                version=self.version)
+        self.assertRaises(exception.ValidationError, self.controller.show,
+                          req, 1)
+
+
 class SimpleTenantUsageLimitsTestV21(test.TestCase):
     version = '2.1'
 
diff --git a/nova/tests/unit/api/openstack/compute/test_volumes.py b/nova/tests/unit/api/openstack/compute/test_volumes.py
index 7825d259f6..34eb45cefb 100644
--- a/nova/tests/unit/api/openstack/compute/test_volumes.py
+++ b/nova/tests/unit/api/openstack/compute/test_volumes.py
@@ -26,6 +26,7 @@ from six.moves import urllib
 import webob
 from webob import exc
 
+from nova.api.openstack import api_version_request
 from nova.api.openstack import common
 from nova.api.openstack.compute import assisted_volume_snapshots \
         as assisted_snaps_v21
@@ -419,6 +420,8 @@ class VolumeApiTestV21(test.NoDBTestCase):
 
 class VolumeAttachTestsV21(test.NoDBTestCase):
     validation_error = exception.ValidationError
+    microversion = '2.1'
+    _prefix = '/servers/id/os-volume_attachments'
 
     def setUp(self):
         super(VolumeAttachTestsV21, self).setUp()
@@ -436,12 +439,15 @@ class VolumeAttachTestsV21(test.NoDBTestCase):
             }}
         self.attachments = volumes_v21.VolumeAttachmentController()
 
-        self.req = fakes.HTTPRequest.blank(
-                  '/v2/servers/id/os-volume_attachments/uuid')
+        self.req = self._build_request('/uuid')
         self.req.body = jsonutils.dump_as_bytes({})
         self.req.headers['content-type'] = 'application/json'
         self.req.environ['nova.context'] = self.context
 
+    def _build_request(self, url=''):
+        return fakes.HTTPRequest.blank(
+            self._prefix + url, version=self.microversion)
+
     def test_show(self):
         result = self.attachments.show(self.req, FAKE_UUID, FAKE_UUID_A)
         self.assertEqual(self.expected_show, result)
@@ -638,10 +644,12 @@ class VolumeAttachTestsV21(test.NoDBTestCase):
                                     'device': '/dev/fake'}}
         self.assertRaises(webob.exc.HTTPConflict, self.attachments.create,
                           self.req, FAKE_UUID, body=body)
+        supports_multiattach = api_version_request.is_supported(
+            self.req, '2.60')
         mock_attach_volume.assert_called_once_with(
             self.req.environ['nova.context'],
             test.MatchType(objects.Instance), FAKE_UUID_A, '/dev/fake',
-            supports_multiattach=False, tag=None)
+            supports_multiattach=supports_multiattach, tag=None)
 
     def test_attach_volume_bad_id(self):
         self.stub_out('nova.compute.api.API.attach_volume',
@@ -701,7 +709,7 @@ class VolumeAttachTestsV21(test.NoDBTestCase):
         body = {'volumeAttachment': {'volumeId': FAKE_UUID_A,
                                      'device': '/dev/fake'}}
 
-        req = fakes.HTTPRequest.blank('/v2/servers/id/os-volume_attachments')
+        req = self._build_request()
         req.method = 'POST'
         req.body = jsonutils.dump_as_bytes({})
         req.headers['content-type'] = 'application/json'
@@ -796,8 +804,7 @@ class VolumeAttachTestsV21(test.NoDBTestCase):
              'id': FAKE_UUID_B})
 
     def _test_list_with_invalid_filter(self, url):
-        prefix = '/servers/id/os-volume_attachments'
-        req = fakes.HTTPRequest.blank(prefix + url)
+        req = self._build_request(url)
         self.assertRaises(exception.ValidationError,
                           self.attachments.index,
                           req,
@@ -833,8 +840,7 @@ class VolumeAttachTestsV21(test.NoDBTestCase):
             'offset': 1
         }
         for param, value in params.items():
-            req = fakes.HTTPRequest.blank(
-                '/servers/id/os-volume_attachments' + '?%s=%s&%s=%s' %
+            req = self._build_request('?%s=%s&%s=%s' %
                 (param, value, param, value))
             self.attachments.index(req, FAKE_UUID)
 
@@ -843,8 +849,8 @@ class VolumeAttachTestsV21(test.NoDBTestCase):
     def test_list_with_additional_filter(self, mock_get):
         fake_bdms = objects.BlockDeviceMappingList()
         mock_get.return_value = fake_bdms
-        req = fakes.HTTPRequest.blank(
-            '/servers/id/os-volume_attachments?limit=1&additional=something')
+        req = self._build_request(
+            '?limit=1&additional=something')
         self.attachments.index(req, FAKE_UUID)
 
 
@@ -957,6 +963,36 @@ class VolumeAttachTestsV260(test.NoDBTestCase):
                       'shelved-offloaded instances.', six.text_type(ex))
 
 
+class VolumeAttachTestsV2_75(VolumeAttachTestsV21):
+    microversion = '2.75'
+
+    def setUp(self):
+        super(VolumeAttachTestsV2_75, self).setUp()
+        self.expected_show = {'volumeAttachment':
+            {'device': '/dev/fake0',
+             'serverId': FAKE_UUID,
+             'id': FAKE_UUID_A,
+             'volumeId': FAKE_UUID_A,
+             'tag': None,
+            }}
+
+    @mock.patch.object(objects.BlockDeviceMappingList,
+                       'get_by_instance_uuid')
+    def test_list_with_additional_filter_old_version(self, mock_get):
+        fake_bdms = objects.BlockDeviceMappingList()
+        mock_get.return_value = fake_bdms
+        req = fakes.HTTPRequest.blank(
+            '/os-volumes?limit=1&offset=1&additional=something',
+            version='2.74')
+        self.attachments.index(req, FAKE_UUID)
+
+    def test_list_with_additional_filter(self):
+        req = self._build_request(
+            '?limit=1&additional=something')
+        self.assertRaises(self.validation_error, self.attachments.index,
+                          req, FAKE_UUID)
+
+
 class SwapVolumeMultiattachTestCase(test.NoDBTestCase):
 
     @mock.patch('nova.api.openstack.common.get_instance')
@@ -1185,6 +1221,7 @@ class AssistedSnapshotCreateTestCaseV21(test.NoDBTestCase):
 
 class AssistedSnapshotDeleteTestCaseV21(test.NoDBTestCase):
     assisted_snaps = assisted_snaps_v21
+    microversion = '2.1'
 
     def _check_status(self, expected_status, res, controller_method):
         self.assertEqual(expected_status, controller_method.wsgi_code)
@@ -1204,13 +1241,15 @@ class AssistedSnapshotDeleteTestCaseV21(test.NoDBTestCase):
         }
         req = fakes.HTTPRequest.blank(
                 '/v2/fake/os-assisted-volume-snapshots?%s' %
-                urllib.parse.urlencode(params))
+                urllib.parse.urlencode(params),
+                version=self.microversion)
         req.method = 'DELETE'
         result = self.controller.delete(req, '5')
         self._check_status(204, result, self.controller.delete)
 
     def test_assisted_delete_missing_delete_info(self):
-        req = fakes.HTTPRequest.blank('/v2/fake/os-assisted-volume-snapshots')
+        req = fakes.HTTPRequest.blank('/v2/fake/os-assisted-volume-snapshots',
+                                      version=self.microversion)
         req.method = 'DELETE'
         self.assertRaises(webob.exc.HTTPBadRequest, self.controller.delete,
                 req, '5')
@@ -1223,7 +1262,8 @@ class AssistedSnapshotDeleteTestCaseV21(test.NoDBTestCase):
         }
         req = fakes.HTTPRequest.blank(
                 '/v2/fake/os-assisted-volume-snapshots?%s' %
-                urllib.parse.urlencode(params))
+                urllib.parse.urlencode(params),
+                version=self.microversion)
         req.method = 'DELETE'
         with mock.patch.object(compute_api.API, 'volume_snapshot_delete',
                                side_effect=api_error):
@@ -1248,7 +1288,8 @@ class AssistedSnapshotDeleteTestCaseV21(test.NoDBTestCase):
         }
         req = fakes.HTTPRequest.blank(
                 '/v2/fake/os-assisted-volume-snapshots?%s' %
-                urllib.parse.urlencode(params))
+                urllib.parse.urlencode(params),
+                version=self.microversion)
         req.method = 'DELETE'
         self.controller.delete(req, '5')
 
@@ -1259,7 +1300,8 @@ class AssistedSnapshotDeleteTestCaseV21(test.NoDBTestCase):
         }
         req = fakes.HTTPRequest.blank(
                 '/v2/fake/os-assisted-volume-snapshots?%s' %
-                urllib.parse.urlencode(params))
+                urllib.parse.urlencode(params),
+                version=self.microversion)
         req.method = 'DELETE'
         self.controller.delete(req, '5')
 
@@ -1269,7 +1311,8 @@ class AssistedSnapshotDeleteTestCaseV21(test.NoDBTestCase):
         }
         req = fakes.HTTPRequest.blank(
                 '/v2/fake/os-assisted-volume-snapshots?%s' %
-                urllib.parse.urlencode(params))
+                urllib.parse.urlencode(params),
+                version=self.microversion)
 
         req.method = 'DELETE'
         ex = self.assertRaises(webob.exc.HTTPBadRequest,
@@ -1279,6 +1322,29 @@ class AssistedSnapshotDeleteTestCaseV21(test.NoDBTestCase):
         self.assertIn('volume_id', six.text_type(ex))
 
 
+class AssistedSnapshotDeleteTestCaseV275(AssistedSnapshotDeleteTestCaseV21):
+    assisted_snaps = assisted_snaps_v21
+    microversion = '2.75'
+
+    def test_delete_additional_query_parameters_old_version(self):
+        params = {
+            'delete_info': jsonutils.dumps({'volume_id': '1'}),
+            'additional': 123
+        }
+        req = fakes.HTTPRequest.blank(
+                '/v2/fake/os-assisted-volume-snapshots?%s' %
+                urllib.parse.urlencode(params),
+                version='2.74')
+        self.controller.delete(req, 1)
+
+    def test_delete_additional_query_parameters(self):
+        req = fakes.HTTPRequest.blank(
+                '/v2/fake/os-assisted-volume-snapshots?unknown=1',
+                version=self.microversion)
+        self.assertRaises(exception.ValidationError,
+                          self.controller.delete, req, 1)
+
+
 class TestAssistedVolumeSnapshotsPolicyEnforcementV21(test.NoDBTestCase):
 
     def setUp(self):
diff --git a/releasenotes/notes/api-consistency-cleanup-700b260ced206d92.yaml b/releasenotes/notes/api-consistency-cleanup-700b260ced206d92.yaml
new file mode 100644
index 0000000000..d69b2f0fe2
--- /dev/null
+++ b/releasenotes/notes/api-consistency-cleanup-700b260ced206d92.yaml
@@ -0,0 +1,17 @@
+---
+features:
+  - |
+    Multiple API cleanups is done in API microversion 2.75:
+
+    * 400 for unknown param for query param and for request body.
+
+    * Making server representation always consistent among GET, PUT
+      and Rebuild serevr APIs response. ``PUT /servers/{server_id}``
+      and ``POST /servers/{server_id}/action {rebuild}`` API response
+      is modified to add all the missing fields which are return
+      by ``GET /servers/{server_id}``.
+    * Change the default return value of swap field from the empty
+      string to 0 (integer) in flavor APIs.
+
+    * Return ``servers`` field always in the response of GET
+      hypervisors API even there are no servers on hypervisor.