diff --git a/.zuul.yaml b/.zuul.yaml
index 8ab3028..fd3aa2a 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -144,8 +144,11 @@
 
 # TODO(gmann): needs to migrate this to zuulv3
 - job:
-    name: tempest-scenario-multinode-lvm-multibackend
+    name: tempest-scenario-all
     parent: legacy-dsvm-base-multinode
+    description: |
+      This job will run all scenario tests including slow tests
+      with lvm multibackend setup. This job will not run any API tests.
     run: playbooks/tempest-scenario-multinode-lvm-multibackend/run.yaml
     post-run: playbooks/tempest-scenario-multinode-lvm-multibackend/post.yaml
     timeout: 10800
@@ -336,8 +339,7 @@
               - ^tempest/hacking/.*$
               - ^tempest/tests/.*$
         - tempest-tox-plugin-sanity-check
-        - tempest-scenario-multinode-lvm-multibackend:
-            voting: false
+        - tempest-scenario-all:
             irrelevant-files:
               - ^(test-|)requirements.txt$
               - ^.*\.rst$
@@ -347,6 +349,7 @@
               - ^setup.cfg$
               - ^tempest/hacking/.*$
               - ^tempest/tests/.*$
+              - ^tempest/api/.*$
         - nova-cells-v1:
             irrelevant-files:
               - ^(test-|)requirements.txt$
@@ -357,12 +360,21 @@
               - ^setup.cfg$
               - ^tempest/hacking/.*$
               - ^tempest/tests/.*$
+        - nova-live-migration:
+            voting: false
+            irrelevant-files:
+              - ^(test-|)requirements.txt$
+              - ^.*\.rst$
+              - ^doc/.*$
+              - ^etc/.*$
+              - ^releasenotes/.*$
+              - ^setup.cfg$
+              - ^tempest/hacking/.*$
+              - ^tempest/tests/.*$
     gate:
       jobs:
         - nova-multiattach
-    experimental:
-      jobs:
-        - nova-live-migration:
+        - tempest-scenario-all:
             irrelevant-files:
               - ^(test-|)requirements.txt$
               - ^.*\.rst$
@@ -372,6 +384,9 @@
               - ^setup.cfg$
               - ^tempest/hacking/.*$
               - ^tempest/tests/.*$
+              - ^tempest/api/.*$
+    experimental:
+      jobs:
         - tempest-cinder-v2-api:
             irrelevant-files:
               - ^(test-|)requirements.txt$
diff --git a/HACKING.rst b/HACKING.rst
index bb55ac5..2a7ae1d 100644
--- a/HACKING.rst
+++ b/HACKING.rst
@@ -106,7 +106,7 @@
 test method. You specify the services with the ``tempest.common.utils.services``
 decorator. For example:
 
-@utils.services('compute', 'image')
+``@utils.services('compute', 'image')``
 
 Valid service tag names are the same as the list of directories in tempest.api
 that have tests.
@@ -118,6 +118,59 @@
 in ``tempest.api.compute`` would require a service tag for those services,
 however they do not need to be tagged as ``compute``.
 
+Test Attributes
+---------------
+Tempest leverages `test attributes`_ which are a simple but effective way of
+distinguishing between different "types" of API tests. A test can be "tagged"
+with such attributes using the ``decorators.attr`` decorator, for example::
+
+    @decorators.attr(type=['negative'])
+    def test_aggregate_create_aggregate_name_length_less_than_1(self):
+        [...]
+
+These test attributes can be used for test selection via regular expressions.
+For example, ``(?!.*\[.*\bslow\b.*\])(^tempest\.scenario)`` runs all the tests
+in the ``scenario`` test module, *except* for those tagged with the ``slow``
+attribute (via a negative lookahead in the regular expression). These
+attributes are used in Tempest's ``tox.ini`` as well as Tempest's Zuul job
+definitions for specifying particular batches of Tempest test suites to run.
+
+.. _test attributes: https://testtools.readthedocs.io/en/latest/for-test-authors.html?highlight=attr#test-attributes
+
+Negative Attribute
+^^^^^^^^^^^^^^^^^^
+The ``type='negative'`` attribute is used to signify that a test is a negative
+test, which is a test that handles invalid input gracefully. This attribute
+should be applied to all negative test scenarios.
+
+This attribute must be applied to each test that belongs to a negative test
+class, i.e. a test class name ending with "Negative.*" substring.
+
+.. todo::
+
+  Add a hacking check for ensuring that all classes that contain substring
+  "Negative" have the negative attribute decorator applied above each test.
+
+Slow Attribute
+^^^^^^^^^^^^^^
+The ``type='slow'`` attribute is used to signify that a test takes a long time
+to run, relatively speaking. This attribute is usually applied to
+:ref:`scenario tests <scenario_field_guide>`, which involve a complicated
+series of API operations, the total runtime of which can be relatively long.
+This long runtime has performance implications on `Zuul`_ jobs, which is why
+the ``slow`` attribute is leveraged to run slow tests on a selective basis,
+to keep total `Zuul`_ job runtime down to a reasonable time frame.
+
+.. _Zuul: https://docs.openstack.org/infra/zuul/
+
+Smoke Attribute
+^^^^^^^^^^^^^^^
+The ``type='smoke'`` attribute is used to signify that a test is a so-called
+smoke test, which is a type of test that tests the most vital OpenStack
+functionality, like listing servers or flavors or creating volumes. The
+attribute should be sparingly applied to only the tests that sanity-check the
+most essential functionality of an OpenStack cloud.
+
 Test fixtures and resources
 ---------------------------
 Test level resources should be cleaned-up after the test execution. Clean-up
diff --git a/REVIEWING.rst b/REVIEWING.rst
index a880181..8a1e152 100644
--- a/REVIEWING.rst
+++ b/REVIEWING.rst
@@ -99,6 +99,39 @@
 scenario tests this is up to the reviewers discretion whether a docstring is
 required or not.
 
+
+Test Removal and Refactoring
+----------------------------
+Make sure that any test that is renamed, relocated (e.g. moved to another
+class), or removed does not belong to the `interop`_ testing suite -- which
+includes a select suite of Tempest tests for the purposes of validating that
+OpenStack vendor clouds are interoperable -- or a project's `whitelist`_ or
+`blacklist`_ files.
+
+It is of critical importance that no interop, whitelist or blacklist test
+reference be broken by a patch set introduced to Tempest that renames,
+relocates or removes a referenced test.
+
+Please check the existence of code which references Tempest tests with:
+http://codesearch.openstack.org/
+
+Interop
+^^^^^^^
+Make sure that modifications to an `interop`_ test are backwards-compatible.
+This means that code modifications to tests should not undermine the quality of
+the validation currently performed by the test or significantly alter the
+behavior of the test.
+
+Removal
+^^^^^^^
+Reference the :ref:`test-removal` guidelines for understanding best practices
+associated with test removal.
+
+.. _interop: https://www.openstack.org/brand/interop
+.. _whitelist: https://docs.openstack.org/tempest/latest/run.html#test-selection
+.. _blacklist: https://docs.openstack.org/tempest/latest/run.html#test-selection
+
+
 Release Notes
 -------------
 Release notes are how we indicate to users and other consumers of Tempest what
@@ -113,16 +146,18 @@
 
 .. _reno: https://docs.openstack.org/reno/latest/
 
+
 Deprecated Code
 ---------------
 Sometimes we have some bugs in deprecated code. Basically, we leave it. Because
 we don't need to maintain it. However, if the bug is critical, we might need to
 fix it. When it will happen, we will deal with it on a case-by-case basis.
 
+
 When to approve
 ---------------
 * Every patch needs two +2s before being approved.
-* Its ok to hold off on an approval until a subject matter expert reviews it
+* It's ok to hold off on an approval until a subject matter expert reviews it
 * If a patch has already been approved but requires a trivial rebase to merge,
   you do not have to wait for a second +2, since the patch has already had
   two +2s.
diff --git a/doc/source/configuration.rst b/doc/source/configuration.rst
index d0d7320..2e5f706 100644
--- a/doc/source/configuration.rst
+++ b/doc/source/configuration.rst
@@ -172,7 +172,7 @@
 resize test).
 
 Using a smaller flavor is generally recommended. When larger flavors are used,
-the extra time required to bring up servers will likely affect total run time
+the extra time required to bring up servers will likely affect the total run time
 and probably require tweaking timeout values to ensure tests have ample time to
 finish.
 
@@ -207,7 +207,7 @@
 
 The behavior of these options is a bit convoluted (which will likely be fixed in
 future versions). You first need to specify ``img_dir``, which is the directory
-in which Tempest will look for the image files. First it will check if the
+in which Tempest will look for the image files. First, it will check if the
 filename set for ``img_file`` could be found in ``img_dir``. If it is found then
 the ``img_container_format`` and ``img_disk_format`` options are used to upload
 that image to glance. However, if it is not found, Tempest will look for the
@@ -239,7 +239,7 @@
 """"""""""""""""""""""""""""""""""
 When Tempest creates servers for testing, some tests require being able to
 connect those servers. Depending on the configuration of the cloud, the methods
-for doing this can be different. In certain configurations it is required to
+for doing this can be different. In certain configurations, it is required to
 specify a single network with server create calls. Accordingly, Tempest provides
 a few different methods for providing this information in configuration to try
 and ensure that regardless of the cloud's configuration it'll still be able to
@@ -297,10 +297,10 @@
 ''''''''''''''''''''''''
 With dynamic credentials enabled and using nova-network, your only option for
 configuration is to either set a fixed network name or not. However, in most
-cases it shouldn't matter because nova-network should have no problem booting a
+cases, it shouldn't matter because nova-network should have no problem booting a
 server with multiple networks. If this is not the case for your cloud then using
 an accounts file is recommended because it provides the necessary flexibility to
-describe your configuration. Dynamic credentials is not able to dynamically
+describe your configuration. Dynamic credentials are not able to dynamically
 allocate things as necessary if Neutron is not enabled.
 
 With Neutron and dynamic credentials enabled there should not be any additional
@@ -352,7 +352,7 @@
 OpenStack is really a constellation of several different projects which
 are running together to create a cloud. However which projects you're running
 is not set in stone, and which services are running is up to the deployer.
-Tempest however needs to know which services are available so it can figure
+Tempest, however, needs to know which services are available so it can figure
 out which tests it is able to run and certain setup steps which differ based
 on the available services.
 
@@ -390,8 +390,8 @@
 
 .. note::
 
-    Tempest does not serve all kinds of fancy URLs in the service catalog.  The
-    service catalog should be in a standard format (which is going to be
+    Tempest does not serve all kinds of fancy URLs in the service catalog.
+    The service catalog should be in a standard format (which is going to be
     standardized at the Keystone level).
     Tempest expects URLs in the Service catalog in the following format:
 
@@ -413,10 +413,10 @@
 certain operations and features aren't supported depending on the configuration.
 These features may or may not be discoverable from the API so the burden is
 often on the user to figure out what is supported by the cloud they're talking
-to.  Besides the obvious interoperability issues with this it also leaves
+to. Besides the obvious interoperability issues with this, it also leaves
 Tempest in an interesting situation trying to figure out which tests are
 expected to work. However, Tempest tests do not rely on dynamic API discovery
-for a feature (assuming one exists). Instead Tempest has to be explicitly
+for a feature (assuming one exists). Instead, Tempest has to be explicitly
 configured as to which optional features are enabled. This is in order to
 prevent bugs in the discovery mechanisms from masking failures.
 
@@ -432,8 +432,8 @@
 ^^^^^^^^^^^^^^
 The service feature-enabled sections often contain an ``api-extensions`` option
 (or in the case of Swift a ``discoverable_apis`` option). This is used to tell
-Tempest which api extensions (or configurable middleware) is used in your
+Tempest which API extensions (or configurable middleware) is used in your
 deployment. It has two valid config states: either it contains a single value
-``all`` (which is the default) which means that every api extension is assumed
+``all`` (which is the default) which means that every API extension is assumed
 to be enabled, or it is set to a list of each individual extension that is
 enabled for that service.
diff --git a/doc/source/library.rst b/doc/source/library.rst
index 14415ae..6a12c45 100644
--- a/doc/source/library.rst
+++ b/doc/source/library.rst
@@ -4,12 +4,12 @@
 =============================
 
 Tempest provides a stable library interface that provides external tools or
-test suites an interface for reusing pieces of tempest code. Any public
-interface that lives in tempest/lib in the tempest repo is treated as a stable
+test suites an interface for reusing pieces of Tempest code. Any public
+interface that lives in tempest/lib in the Tempest repo is treated as a stable
 public interface and it should be safe to external consume that. Every effort
 goes into maintaining backwards compatibility with any change.
 The library is self contained and doesn't have any dependency on
-other tempest internals outside of lib (including no usage of tempest
+other Tempest internals outside of lib (including no usage of Tempest
 configuration).
 
 Stability
@@ -32,7 +32,7 @@
 Making changes
 ''''''''''''''
 When making changes to tempest/lib you have to be conscious of the effect of
-any changes on external consumers. If your proposed changeset will change the
+any changes on external consumers. If your proposed change set will change the
 default behaviour of any interface, or make something which previously worked
 not after your change, then it is not acceptable. Every effort needs to go into
 preserving backwards compatibility in changes.
@@ -40,8 +40,8 @@
 Reviewing
 '''''''''
 When reviewing a proposed change to tempest/lib code we need to be careful to
-ensure that we don't break backwards compatibility. For patches that change
-existing interfaces we have to be careful to make sure we don't break any
+ensure that we don't break backward compatibility. For patches that change
+existing interfaces, we have to be careful to make sure we don't break any
 external consumers. Some common red flags are:
 
 * a change to an existing API requires a change outside the library directory
@@ -52,7 +52,7 @@
 '''''''
 When adding a new interface to the library we need to at a minimum have unit
 test coverage. A proposed change to add an interface to tempest/lib that
-doesn't have unit tests shouldn't be accepted. Ideally these unit tests will
+doesn't have unit tests shouldn't be accepted. Ideally, these unit tests will
 provide sufficient coverage to ensure a stable interface moving forward.
 
 Current Library APIs
diff --git a/doc/source/microversion_testing.rst b/doc/source/microversion_testing.rst
index ea868ae..6dd00d3 100644
--- a/doc/source/microversion_testing.rst
+++ b/doc/source/microversion_testing.rst
@@ -358,22 +358,30 @@
 
   .. _2.49: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id44
 
+  * `2.53`_
+
+  .. _2.53: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#maximum-in-pike
+
   * `2.54`_
 
-  .. _2.54: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id4
+  .. _2.54: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id49
 
   * `2.55`_
 
-  .. _2.55: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id49
+  .. _2.55: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id50
 
   * `2.57`_
 
-  .. _2.57: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id51
+  .. _2.57: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id52
 
   * `2.60`_
 
   .. _2.60: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#maximum-in-queens
 
+  * `2.61`_
+
+  .. _2.61: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id55
+
   * `2.63`_
 
   .. _2.63: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id57
diff --git a/doc/source/plugin.rst b/doc/source/plugin.rst
index 6f6621d..9958792 100644
--- a/doc/source/plugin.rst
+++ b/doc/source/plugin.rst
@@ -5,24 +5,24 @@
 =============================
 
 Tempest has an external test plugin interface which enables anyone to integrate
-an external test suite as part of a tempest run. This will let any project
-leverage being run with the rest of the tempest suite while not requiring the
-tests live in the tempest tree.
+an external test suite as part of a Tempest run. This will let any project
+leverage being run with the rest of the Tempest suite while not requiring the
+tests live in the Tempest tree.
 
 Creating a plugin
 =================
 
 Creating a plugin is fairly straightforward and doesn't require much additional
 effort on top of creating a test suite using tempest.lib. One thing to note with
-doing this is that the interfaces exposed by tempest are not considered stable
-(with the exception of configuration variables which ever effort goes into
-ensuring backwards compatibility). You should not need to import anything from
-tempest itself except where explicitly noted.
+doing this is that the interfaces exposed by Tempest are not considered stable
+(with the exception of configuration variables whichever effort goes into
+ensuring backward compatibility). You should not need to import anything from
+Tempest itself except where explicitly noted.
 
 Stable Tempest APIs plugins may use
 -----------------------------------
 
-As noted above, several tempest APIs are acceptable to use from plugins, while
+As noted above, several Tempest APIs are acceptable to use from plugins, while
 others are not. A list of stable APIs available to plugins is provided below:
 
 * tempest.lib.*
@@ -32,7 +32,7 @@
 * tempest.clients
 * tempest.test
 
-If there is an interface from tempest that you need to rely on in your plugin
+If there is an interface from Tempest that you need to rely on in your plugin
 which is not listed above, it likely needs to be migrated to tempest.lib. In
 that situation, file a bug, push a migration patch, etc. to expedite providing
 the interface in a reliable manner.
@@ -62,7 +62,7 @@
 -----------
 
 Once you've created your plugin class you need to add an entry point to your
-project to enable tempest to find the plugin. The entry point must be added
+project to enable Tempest to find the plugin. The entry point must be added
 to the "tempest.test_plugins" namespace.
 
 If you are using pbr this is fairly straightforward, in the setup.cfg just add
@@ -77,9 +77,9 @@
 Standalone Plugin vs In-repo Plugin
 -----------------------------------
 
-Since all that's required for a plugin to be detected by tempest is a valid
+Since all that's required for a plugin to be detected by Tempest is a valid
 setuptools entry point in the proper namespace there is no difference from the
-tempest perspective on either creating a separate python package to
+Tempest perspective on either creating a separate python package to
 house the plugin or adding the code to an existing python project. However,
 there are tradeoffs to consider when deciding which approach to take when
 creating a new plugin.
@@ -91,9 +91,9 @@
 single version of the test code across project release boundaries (see the
 `Branchless Tempest Spec`_ for more details on this). It also greatly
 simplifies the install time story for external users. Instead of having to
-install the right version of a project in the same python namespace as tempest
+install the right version of a project in the same python namespace as Tempest
 they simply need to pip install the plugin in that namespace. It also means
-that users don't have to worry about inadvertently installing a tempest plugin
+that users don't have to worry about inadvertently installing a Tempest plugin
 when they install another package.
 
 .. _Branchless Tempest Spec: http://specs.openstack.org/openstack/qa-specs/specs/tempest/implemented/branchless-tempest.html
@@ -108,9 +108,9 @@
 Plugin Class
 ============
 
-To provide tempest with all the required information it needs to be able to run
-your plugin you need to create a plugin class which tempest will load and call
-to get information when it needs. To simplify creating this tempest provides an
+To provide Tempest with all the required information it needs to be able to run
+your plugin you need to create a plugin class which Tempest will load and call
+to get information when it needs. To simplify creating this Tempest provides an
 abstract class that should be used as the parent for your plugin. To use this
 you would do something like the following:
 
@@ -147,7 +147,7 @@
       services/
         client.py
 
-That will mirror what people expect from tempest. The file
+That will mirror what people expect from Tempest. The file
 
 * **config.py**: contains any plugin specific configuration variables
 * **plugin.py**: contains the plugin class used for the entry point
@@ -156,14 +156,14 @@
 * **services**: where the plugin specific service clients are
 
 Additionally, when you're creating the plugin you likely want to follow all
-of the tempest developer and reviewer documentation to ensure that the tests
-being added in the plugin act and behave like the rest of tempest.
+of the Tempest developer and reviewer documentation to ensure that the tests
+being added in the plugin act and behave like the rest of Tempest.
 
 Dealing with configuration options
 ----------------------------------
 
-Historically Tempest didn't provide external guarantees on its configuration
-options. However, with the introduction of the plugin interface this is no
+Historically, Tempest didn't provide external guarantees on its configuration
+options. However, with the introduction of the plugin interface, this is no
 longer the case. An external plugin can rely on using any configuration option
 coming from Tempest, there will be at least a full deprecation cycle for any
 option before it's removed. However, just the options provided by Tempest
@@ -171,7 +171,7 @@
 configuration options you should use the ``register_opts`` and
 ``get_opt_lists`` methods to pass them to Tempest when the plugin is loaded.
 When adding configuration options the ``register_opts`` method gets passed the
-CONF object from tempest. This enables the plugin to add options to both
+CONF object from Tempest. This enables the plugin to add options to both
 existing sections and also create new configuration sections for new options.
 
 Service Clients
@@ -325,23 +325,23 @@
 
 Tempest will automatically discover any installed plugins when it is run. So by
 just installing the python packages which contain your plugin you'll be using
-them with tempest, nothing else is really required.
+them with Tempest, nothing else is really required.
 
 However, you should take care when installing plugins. By their very nature
-there are no guarantees when running tempest with plugins enabled about the
+there are no guarantees when running Tempest with plugins enabled about the
 quality of the plugin. Additionally, while there is no limitation on running
-with multiple plugins it's worth noting that poorly written plugins might not
+with multiple plugins, it's worth noting that poorly written plugins might not
 properly isolate their tests which could cause unexpected cross interactions
 between plugins.
 
 Notes for using plugins with virtualenvs
 ----------------------------------------
 
-When using a tempest inside a virtualenv (like when running under tox) you have
+When using a Tempest inside a virtualenv (like when running under tox) you have
 to ensure that the package that contains your plugin is either installed in the
 venv too or that you have system site-packages enabled. The virtualenv will
-isolate the tempest install from the rest of your system so just installing the
-plugin package on your system and then running tempest inside a venv will not
+isolate the Tempest install from the rest of your system so just installing the
+plugin package on your system and then running Tempest inside a venv will not
 work.
 
 Tempest also exposes a tox job, all-plugin, which will setup a tox virtualenv
diff --git a/doc/source/test_removal.rst b/doc/source/test_removal.rst
index ddae6e2..e249bdd 100644
--- a/doc/source/test_removal.rst
+++ b/doc/source/test_removal.rst
@@ -1,21 +1,23 @@
+.. _test-removal:
+
 Tempest Test Removal Procedure
 ==============================
 
-Historically tempest was the only way of doing functional testing and
-integration testing in OpenStack. This was mostly only an artifact of tempest
+Historically, Tempest was the only way of doing functional testing and
+integration testing in OpenStack. This was mostly only an artifact of Tempest
 being the only proven pattern for doing this, not an artifact of a design
-decision. However, moving forward as functional testing is being spun up in
-each individual project we really only want tempest to be the integration test
-suite it was intended to be; testing the high level interactions between
-projects through REST API requests. In this model there are probably existing
-tests that aren't the best fit living in tempest. However, since tempest is
+decision. However, moving forward, as functional testing is being spun up in
+each individual project, we really only want Tempest to be the integration test
+suite it was intended to be: testing the high-level interactions between
+projects through REST API requests. In this model, there are probably existing
+tests that aren't the best fit living in Tempest. However, since Tempest is
 largely still the only gating test suite in this space we can't carelessly rip
 out everything from the tree. This document outlines the procedure which was
 developed to ensure we minimize the risk for removing something of value from
-the tempest tree.
+the Tempest tree.
 
-This procedure might seem overly conservative and slow paced, but this is by
-design to try and ensure we don't remove something that is actually providing
+This procedure might seem overly conservative and slow-paced, but this is by
+design to try to ensure we don't remove something that is actually providing
 value. Having potential duplication between testing is not a big deal
 especially compared to the alternative of removing something which is actually
 providing value and is actively catching bugs, or blocking incorrect patches
@@ -27,24 +29,24 @@
 3 prong rule for removal
 ^^^^^^^^^^^^^^^^^^^^^^^^
 
-In the proposal etherpad we'll be looking for answers to 3 questions
+In the proposal etherpad we'll be looking for answers to 3 questions:
 
 #. The tests proposed for removal must have equiv. coverage in a different
    project's test suite (whether this is another gating test project, or an in
    tree functional test suite). For API tests preferably the other project will
-   have a similar source of friction in place to prevent breaking api changes
-   so that we don't regress and let breaking api changes slip through the
+   have a similar source of friction in place to prevent breaking API changes
+   so that we don't regress and let breaking API changes slip through the
    gate.
 #. The test proposed for removal has a failure rate <  0.50% in the gate over
    the past release (the value and interval will likely be adjusted in the
    future)
 
    .. _`prong #3`:
-#. There must not be an external user/consumer of tempest
+#. There must not be an external user/consumer of Tempest
    that depends on the test proposed for removal
 
 The answers to 1 and 2 are easy to verify. For 1 just provide a link to the new
-test location. If you are linking to the tempest removal patch please also put
+test location. If you are linking to the Tempest removal patch please also put
 a Depends-On in the commit message for the commit which moved the test into
 another repo.
 
@@ -91,32 +93,35 @@
 #. paste the output table with numbers and the mysql command you ran to
    generate it into the etherpad.
 
-Eventually a cli interface will be created to make that a bit more friendly.
+Eventually, a CLI interface will be created to make that a bit more friendly.
 Also a dashboard is in the works so we don't need to manually run the command.
 
 The intent of the 2nd prong is to verify that moving the test into a project
-specific testing is preventing bugs (assuming the tempest tests were catching
-issues) from bubbling up a layer into tempest jobs. If we're seeing failure
+specific testing is preventing bugs (assuming the Tempest tests were catching
+issues) from bubbling up a layer into Tempest jobs. If we're seeing failure
 rates above a certain threshold in the gate checks that means the functional
 testing isn't really being effective in catching that bug (and therefore
-blocking it from landing) and having the testing run in tempest still has
+blocking it from landing) and having the testing run in Tempest still has
 value.
 
-However for the 3rd prong verification is a bit more subjective. The original
+However, for the 3rd prong verification is a bit more subjective. The original
 intent of this prong was mostly for refstack/defcore and also for things that
 running on the stable branches. We don't want to remove any tests if that
-would break our api consistency checking between releases, or something that
-defcore/refstack is depending on being in tempest. It's worth pointing out
-that if a test is used in defcore as part of interop testing then it will
-probably have continuing value being in tempest as part of the
+would break our API consistency checking between releases, or something that
+defcore/refstack is depending on being in Tempest. It's worth pointing out
+that if a test is used in `defcore`_ as part of `interop`_ testing then it will
+probably have continuing value being in Tempest as part of the
 integration/integrated tests in general. This is one area where some overlap
-is expected between testing in projects and tempest, which is not a bad thing.
+is expected between testing in projects and Tempest, which is not a bad thing.
+
+.. _defcore: https://wiki.openstack.org/wiki/Governance/InteropWG
+.. _interop: https://www.openstack.org/brand/interop
 
 Discussing the 3rd prong
 """"""""""""""""""""""""
 
 There are 2 approaches to addressing the 3rd prong. Either it can be raised
-during a qa meeting during the tempest discussion. Please put it on the agenda
+during a QA meeting during the Tempest discussion. Please put it on the agenda
 well ahead of the scheduled meeting. Since the meeting time will be well known
 ahead of time anyone who depends on the tests will have ample time beforehand
 to outline any concerns on the before the meeting. To give ample time for
@@ -133,19 +138,19 @@
 Exceptions to this procedure
 ----------------------------
 
-For the most part all tempest test removals have to go through this procedure
+For the most part, all Tempest test removals have to go through this procedure
 there are a couple of exceptions though:
 
-#. The class of testing has been decided to be outside the scope of tempest.
+#. The class of testing has been decided to be outside the scope of Tempest.
 #. A revert for a patch which added a broken test, or testing which didn't
    actually run in the gate (basically any revert for something which
    shouldn't have been added)
 #. Tests that would become out of scope as a consequence of an API change,
    as described in `API Compatibility`_.
    Such tests cannot live in Tempest because of the branchless nature of
-   Tempest. Such test must still honor `prong #3`_.
+   Tempest. Such tests must still honor `prong #3`_.
 
-For the first exception type the only types of testing in tree which have been
+For the first exception type, the only types of testing in the tree which have been
 declared out of scope at this point are:
 
 * The CLI tests (which should be completely removed at this point)
@@ -154,14 +159,14 @@
 * XML API Tests (which should be completely removed at this point)
 * EC2 API/boto tests (which should be completely removed at this point)
 
-For tests that fit into this category the only criteria for removal is that
+For tests that fit into this category, the only criteria for removal is that
 there is equivalent testing elsewhere.
 
 Tempest Scope
 ^^^^^^^^^^^^^
 
-Starting in the liberty cycle tempest has defined a set of projects which
-are defined as in scope for direct testing in tempest. As of today that list
+Starting in the liberty cycle Tempest, has defined a set of projects which
+are defined as in scope for direct testing in Tempest. As of today that list
 is:
 
 * Keystone
@@ -171,23 +176,23 @@
 * Neutron
 * Swift
 
-anything that lives in tempest which doesn't test one of these projects can be
+Anything that lives in Tempest which doesn't test one of these projects can be
 removed assuming there is equivalent testing elsewhere. Preferably using the
 `tempest plugin mechanism`_
-to maintain continuity after migrating the tests out of tempest.
+to maintain continuity after migrating the tests out of Tempest.
 
 .. _tempest plugin mechanism: https://docs.openstack.org/tempest/latest/plugin.html
 
 API Compatibility
 """""""""""""""""
 
-If an API introduces a non-discoverable, backward incompatible change, and
-such change is not backported to all versions supported by Tempest, tests for
+If an API introduces a non-discoverable, backward-incompatible change, and
+such a change is not backported to all versions supported by Tempest, tests for
 that API cannot live in Tempest anymore.
 This is because tests would not be able to know or control which API response
 to expect, and thus would not be able to enforce a specific behavior.
 
-If a test exists in Tempest that would meet this criteria as consequence of a
-change, the test must be removed according to the procedure discussed into
+If a test exists in Tempest that would meet these criteria as a consequence of a
+change, the test must be removed according to the procedure discussed in
 this document. The API change should not be merged until all conditions
 required for test removal can be met.
diff --git a/doc/source/write_tests.rst b/doc/source/write_tests.rst
index fff2405..0a29b7b 100644
--- a/doc/source/write_tests.rst
+++ b/doc/source/write_tests.rst
@@ -4,7 +4,7 @@
 ##########################
 
 This guide serves as a starting point for developers working on writing new
-Tempest tests. At a high level tests in Tempest are just tests that conform to
+Tempest tests. At a high level, tests in Tempest are just tests that conform to
 the standard python `unit test`_ framework. But there are several aspects of
 that are unique to Tempest and its role as an integration test suite running
 against a real cloud.
diff --git a/playbooks/tempest-scenario-multinode-lvm-multibackend/run.yaml b/playbooks/tempest-scenario-multinode-lvm-multibackend/run.yaml
index 03f64f9..57b4074 100644
--- a/playbooks/tempest-scenario-multinode-lvm-multibackend/run.yaml
+++ b/playbooks/tempest-scenario-multinode-lvm-multibackend/run.yaml
@@ -47,8 +47,8 @@
           set -x
           export PYTHONUNBUFFERED=true
           export DEVSTACK_GATE_TEMPEST=1
-          # Run scenario and nova migration tests with concurrency 2
-          export DEVSTACK_GATE_TEMPEST_REGEX='(^tempest\.(scenario|api\.compute\.admin\.test_(live_|)migration))'
+          # Run all scenario tests including slow tests with concurrency 2
+          export DEVSTACK_GATE_TEMPEST_REGEX='(^tempest\.(scenario))'
           export TEMPEST_CONCURRENCY=2
           export DEVSTACK_GATE_NEUTRON=1
           export DEVSTACK_GATE_TLSPROXY=1
diff --git a/releasenotes/notes/omit_X-Subject-Token_from_log-1bf5fef88c80334b.yaml b/releasenotes/notes/omit_X-Subject-Token_from_log-1bf5fef88c80334b.yaml
new file mode 100644
index 0000000..51c8f79
--- /dev/null
+++ b/releasenotes/notes/omit_X-Subject-Token_from_log-1bf5fef88c80334b.yaml
@@ -0,0 +1,7 @@
+---
+security:
+  - |
+    The x-subject-token of a response header is ommitted from log,
+    but clients specify the same token on a request header on
+    Keystone API and that was not omitted. In this release,
+    that has been omitted for a security reason.
diff --git a/releasenotes/notes/remove-allow_tenant_isolation-option-03f0d998eb498d44.yaml b/releasenotes/notes/remove-allow_tenant_isolation-option-03f0d998eb498d44.yaml
new file mode 100644
index 0000000..4f4516b
--- /dev/null
+++ b/releasenotes/notes/remove-allow_tenant_isolation-option-03f0d998eb498d44.yaml
@@ -0,0 +1,6 @@
+---
+upgrade:
+  - |
+    Remove deprecated config option ``allow_tenant_isolation`` from
+    ``auth`` and ``compute`` groups. Use ``use_dynamic_credentials`` directly
+    instead of the removed option.
diff --git a/releasenotes/notes/tempest-lib-compute-update-service-6019d2dcfe4a1c5d.yaml b/releasenotes/notes/tempest-lib-compute-update-service-6019d2dcfe4a1c5d.yaml
new file mode 100644
index 0000000..d67cdb8
--- /dev/null
+++ b/releasenotes/notes/tempest-lib-compute-update-service-6019d2dcfe4a1c5d.yaml
@@ -0,0 +1,11 @@
+---
+features:
+  - |
+    The ``update_service`` API is added to the ``services_client`` compute
+    library. This API is introduced in microversion 2.53 and supersedes
+    the following APIs:
+
+    * ``PUT /os-services/disable`` (``disable_service``)
+    * ``PUT /os-services/disable-log-reason`` (``disable_log_reason``)
+    * ``PUT /os-services/enable`` (``enable_service``)
+    * ``PUT /os-services/force-down`` (``update_forced_down``)
diff --git a/tempest/api/compute/admin/test_flavors_microversions.py b/tempest/api/compute/admin/test_flavors_microversions.py
index 027af25..9f014e6 100644
--- a/tempest/api/compute/admin/test_flavors_microversions.py
+++ b/tempest/api/compute/admin/test_flavors_microversions.py
@@ -41,3 +41,11 @@
         self.flavors_client.list_flavors(detail=True)['flavors']
         # Checking list API response schema
         self.flavors_client.list_flavors()['flavors']
+
+
+class FlavorsV261TestJSON(FlavorsV255TestJSON):
+    min_microversion = '2.61'
+    max_microversion = 'latest'
+
+    # NOTE(gmann): This class tests the flavors APIs
+    # response schema for the 2.61 microversion.
diff --git a/tempest/api/compute/admin/test_services_negative.py b/tempest/api/compute/admin/test_services_negative.py
index 201670a..993c8ec 100644
--- a/tempest/api/compute/admin/test_services_negative.py
+++ b/tempest/api/compute/admin/test_services_negative.py
@@ -13,12 +13,14 @@
 #    under the License.
 
 from tempest.api.compute import base
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 
 
 class ServicesAdminNegativeTestJSON(base.BaseV2ComputeAdminTest):
     """Tests Services API. List and Enable/Disable require admin privileges."""
+    max_microversion = '2.52'
 
     @classmethod
     def setup_clients(cls):
@@ -35,7 +37,8 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('d0884a69-f693-4e79-a9af-232d15643bf7')
     def test_get_service_by_invalid_params(self):
-        # return all services if send the request with invalid parameter
+        # Expect all services to be returned when the request contains invalid
+        # parameters.
         services = self.client.list_services()['services']
         services_xxx = (self.client.list_services(xxx='nova-compute')
                         ['services'])
@@ -58,3 +61,45 @@
         services = self.client.list_services(host='xxx',
                                              binary=binary_name)['services']
         self.assertEmpty(services)
+
+
+class ServicesAdminNegativeV253TestJSON(ServicesAdminNegativeTestJSON):
+    min_microversion = '2.53'
+    max_microversion = 'latest'
+
+    # NOTE(felipemonteiro): This class tests the services APIs response schema
+    # for the 2.53 microversion. Schema testing is done for `list_services`
+    # tests.
+
+    @classmethod
+    def resource_setup(cls):
+        super(ServicesAdminNegativeV253TestJSON, cls).resource_setup()
+        # Nova returns 400 if `binary` is not nova-compute.
+        cls.binary = 'nova-compute'
+        cls.fake_service_id = data_utils.rand_uuid()
+
+    @decorators.attr(type=['negative'])
+    @decorators.idempotent_id('508671aa-c929-4479-bd10-8680d40dd0a6')
+    def test_enable_service_with_invalid_service_id(self):
+        self.assertRaises(lib_exc.NotFound,
+                          self.client.update_service,
+                          service_id=self.fake_service_id,
+                          status='enabled')
+
+    @decorators.attr(type=['negative'])
+    @decorators.idempotent_id('a9eeeade-42b3-419f-87aa-c9342aa068cf')
+    def test_disable_service_with_invalid_service_id(self):
+        self.assertRaises(lib_exc.NotFound,
+                          self.client.update_service,
+                          service_id=self.fake_service_id,
+                          status='disabled')
+
+    @decorators.attr(type=['negative'])
+    @decorators.idempotent_id('f46a9d91-1e85-4b96-8e7a-db7706fa2e9a')
+    def test_disable_log_reason_with_invalid_service_id(self):
+        # disabled_reason requires that status='disabled' be provided.
+        self.assertRaises(lib_exc.NotFound,
+                          self.client.update_service,
+                          service_id=self.fake_service_id,
+                          status='disabled',
+                          disabled_reason='maintenance')
diff --git a/tempest/api/compute/keypairs/test_keypairs_negative.py b/tempest/api/compute/keypairs/test_keypairs_negative.py
index f9050a8..81635ca 100644
--- a/tempest/api/compute/keypairs/test_keypairs_negative.py
+++ b/tempest/api/compute/keypairs/test_keypairs_negative.py
@@ -84,6 +84,6 @@
     @decorators.idempotent_id('45fbe5e0-acb5-49aa-837a-ff8d0719db91')
     def test_create_keypair_invalid_name(self):
         # Keypairs with name being an invalid name should not be created
-        k_name = 'key_/.\@:'
+        k_name = r'key_/.\@:'
         self.assertRaises(lib_exc.BadRequest, self.create_keypair,
                           k_name)
diff --git a/tempest/api/compute/servers/test_device_tagging.py b/tempest/api/compute/servers/test_device_tagging.py
index ff8ed61..5d9bf48 100644
--- a/tempest/api/compute/servers/test_device_tagging.py
+++ b/tempest/api/compute/servers/test_device_tagging.py
@@ -320,7 +320,9 @@
         try:
             self.assertEmpty(md_dict['devices'])
             return True
-        except Exception:
+        except AssertionError:
+            LOG.debug("Related bug 1775947. Devices dict is not empty: %s",
+                      md_dict['devices'])
             return False
 
     @decorators.idempotent_id('3e41c782-2a89-4922-a9d2-9a188c4e7c7c')
diff --git a/tempest/api/compute/servers/test_list_server_filters.py b/tempest/api/compute/servers/test_list_server_filters.py
index 14aecfd..3dffd01 100644
--- a/tempest/api/compute/servers/test_list_server_filters.py
+++ b/tempest/api/compute/servers/test_list_server_filters.py
@@ -227,7 +227,7 @@
     @decorators.idempotent_id('24a89b0c-0d55-4a28-847f-45075f19b27b')
     def test_list_servers_filtered_by_name_regex(self):
         # list of regex that should match s1, s2 and s3
-        regexes = ['^.*\-instance\-[0-9]+$', '^.*\-instance\-.*$']
+        regexes = [r'^.*\-instance\-[0-9]+$', r'^.*\-instance\-.*$']
         for regex in regexes:
             params = {'name': regex}
             body = self.client.list_servers(**params)
diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index 9fc5af0..350e8ba 100644
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -369,6 +369,42 @@
         server = self.client.show_server(self.server_id)['server']
         self.assertEqual(self.flavor_ref, server['flavor']['id'])
 
+    @decorators.idempotent_id('fbbf075f-a812-4022-bc5c-ccb8047eef12')
+    @decorators.related_bug('1737599')
+    @testtools.skipUnless(CONF.compute_feature_enabled.resize,
+                          'Resize not available.')
+    @utils.services('volume')
+    def test_resize_server_revert_with_volume_attached(self):
+        # Tests attaching a volume to a server instance and then resizing
+        # the instance. Once the instance is resized, revert the resize which
+        # should move the instance and volume attachment back to the original
+        # compute host.
+
+        # Create a blank volume and attach it to the server created in setUp.
+        volume = self.create_volume()
+        server = self.client.show_server(self.server_id)['server']
+        self.attach_volume(server, volume)
+        # Now resize the server with the blank volume attached.
+        self.client.resize_server(self.server_id, self.flavor_ref_alt)
+        # Explicitly delete the server to get a new one for later
+        # tests. Avoids resize down race issues.
+        self.addCleanup(self.delete_server, self.server_id)
+        waiters.wait_for_server_status(
+            self.client, self.server_id, 'VERIFY_RESIZE')
+        # Now revert the resize which should move the instance and it's volume
+        # attachment back to the original source compute host.
+        self.client.revert_resize_server(self.server_id)
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
+        # Make sure everything still looks OK.
+        server = self.client.show_server(self.server_id)['server']
+        # The flavor id is not returned in the server response after
+        # microversion 2.46 so handle that gracefully.
+        if server['flavor'].get('id'):
+            self.assertEqual(self.flavor_ref, server['flavor']['id'])
+        attached_volumes = server['os-extended-volumes:volumes_attached']
+        self.assertEqual(1, len(attached_volumes))
+        self.assertEqual(volume['id'], attached_volumes[0]['id'])
+
     @decorators.idempotent_id('b963d4f1-94b3-4c40-9e97-7b583f46e470')
     @testtools.skipUnless(CONF.compute_feature_enabled.snapshot,
                           'Snapshotting not available, backup not possible.')
diff --git a/tempest/api/compute/servers/test_virtual_interfaces.py b/tempest/api/compute/servers/test_virtual_interfaces.py
index 5fb1711..f810ec5 100644
--- a/tempest/api/compute/servers/test_virtual_interfaces.py
+++ b/tempest/api/compute/servers/test_virtual_interfaces.py
@@ -28,6 +28,7 @@
 # TODO(mriedem): Remove this test class once the nova queens branch goes into
 # extended maintenance mode.
 class VirtualInterfacesTestJSON(base.BaseV2ComputeTest):
+    max_microversion = '2.43'
 
     depends_on_nova_network = True
 
diff --git a/tempest/api/compute/servers/test_virtual_interfaces_negative.py b/tempest/api/compute/servers/test_virtual_interfaces_negative.py
index ec4d7a8..f6e8bc9 100644
--- a/tempest/api/compute/servers/test_virtual_interfaces_negative.py
+++ b/tempest/api/compute/servers/test_virtual_interfaces_negative.py
@@ -23,6 +23,7 @@
 # TODO(mriedem): Remove this test class once the nova queens branch goes into
 # extended maintenance mode.
 class VirtualInterfacesNegativeTestJSON(base.BaseV2ComputeTest):
+    max_microversion = '2.43'
 
     depends_on_nova_network = True
 
diff --git a/tempest/api/identity/admin/v3/test_domains.py b/tempest/api/identity/admin/v3/test_domains.py
index 97a1f36..72b6be4 100644
--- a/tempest/api/identity/admin/v3/test_domains.py
+++ b/tempest/api/identity/admin/v3/test_domains.py
@@ -121,11 +121,7 @@
         # Create a domain with a user and a group in it
         domain = self.setup_test_domain()
         user = self.create_test_user(domain_id=domain['id'])
-        group = self.groups_client.create_group(
-            name=data_utils.rand_name('group'),
-            domain_id=domain['id'])['group']
-        self.addCleanup(test_utils.call_and_ignore_notfound_exc,
-                        self.groups_client.delete_group, group['id'])
+        group = self.setup_test_group(domain_id=domain['id'])
         # Delete the domain
         self.delete_domain(domain['id'])
         # Check the domain, its users and groups are gone
diff --git a/tempest/api/identity/admin/v3/test_groups.py b/tempest/api/identity/admin/v3/test_groups.py
index 507810b..37ce266 100644
--- a/tempest/api/identity/admin/v3/test_groups.py
+++ b/tempest/api/identity/admin/v3/test_groups.py
@@ -30,50 +30,46 @@
 
     @decorators.idempotent_id('2e80343b-6c81-4ac3-88c7-452f3e9d5129')
     def test_group_create_update_get(self):
+        # Verify group creation works.
         name = data_utils.rand_name('Group')
         description = data_utils.rand_name('Description')
-        group = self.groups_client.create_group(
-            name=name, domain_id=self.domain['id'],
-            description=description)['group']
-        self.addCleanup(self.groups_client.delete_group, group['id'])
+        group = self.setup_test_group(name=name, domain_id=self.domain['id'],
+                                      description=description)
         self.assertEqual(group['name'], name)
         self.assertEqual(group['description'], description)
+        self.assertEqual(self.domain['id'], group['domain_id'])
 
-        new_name = data_utils.rand_name('UpdateGroup')
-        new_desc = data_utils.rand_name('UpdateDescription')
+        # Verify updating name and description works.
+        first_name_update = data_utils.rand_name('UpdateGroup')
+        first_desc_update = data_utils.rand_name('UpdateDescription')
         updated_group = self.groups_client.update_group(
-            group['id'], name=new_name, description=new_desc)['group']
-        self.assertEqual(updated_group['name'], new_name)
-        self.assertEqual(updated_group['description'], new_desc)
+            group['id'], name=first_name_update,
+            description=first_desc_update)['group']
+        self.assertEqual(updated_group['name'], first_name_update)
+        self.assertEqual(updated_group['description'], first_desc_update)
 
+        # Verify that the updated values are reflected after performing show.
         new_group = self.groups_client.show_group(group['id'])['group']
         self.assertEqual(group['id'], new_group['id'])
-        self.assertEqual(new_name, new_group['name'])
-        self.assertEqual(new_desc, new_group['description'])
+        self.assertEqual(first_name_update, new_group['name'])
+        self.assertEqual(first_desc_update, new_group['description'])
 
-    @decorators.idempotent_id('b66eb441-b08a-4a6d-81ab-fef71baeb26c')
-    def test_group_update_with_few_fields(self):
-        name = data_utils.rand_name('Group')
-        old_description = data_utils.rand_name('Description')
-        group = self.groups_client.create_group(
-            name=name, domain_id=self.domain['id'],
-            description=old_description)['group']
-        self.addCleanup(self.groups_client.delete_group, group['id'])
-
-        new_name = data_utils.rand_name('UpdateGroup')
+        # Verify that updating a single field for a group (name) leaves the
+        # other fields (description, domain_id) unchanged.
+        second_name_update = data_utils.rand_name(
+            self.__class__.__name__ + 'UpdateGroup')
         updated_group = self.groups_client.update_group(
-            group['id'], name=new_name)['group']
-        self.assertEqual(new_name, updated_group['name'])
-        # Verify that 'description' is not being updated or deleted.
-        self.assertEqual(old_description, updated_group['description'])
+            group['id'], name=second_name_update)['group']
+        self.assertEqual(second_name_update, updated_group['name'])
+        # Verify that 'description' and 'domain_id' were not updated or
+        # deleted.
+        self.assertEqual(first_desc_update, updated_group['description'])
+        self.assertEqual(self.domain['id'], updated_group['domain_id'])
 
     @decorators.attr(type='smoke')
     @decorators.idempotent_id('1598521a-2f36-4606-8df9-30772bd51339')
     def test_group_users_add_list_delete(self):
-        name = data_utils.rand_name('Group')
-        group = self.groups_client.create_group(
-            name=name, domain_id=self.domain['id'])['group']
-        self.addCleanup(self.groups_client.delete_group, group['id'])
+        group = self.setup_test_group(domain_id=self.domain['id'])
         # add user into group
         users = []
         for _ in range(3):
@@ -100,11 +96,8 @@
         # create two groups, and add user into them
         groups = []
         for _ in range(2):
-            name = data_utils.rand_name('Group')
-            group = self.groups_client.create_group(
-                name=name, domain_id=self.domain['id'])['group']
+            group = self.setup_test_group(domain_id=self.domain['id'])
             groups.append(group)
-            self.addCleanup(self.groups_client.delete_group, group['id'])
             self.groups_client.add_group_user(group['id'], user['id'])
         # list groups which user belongs to
         user_groups = self.users_client.list_user_groups(user['id'])['groups']
@@ -118,12 +111,7 @@
         group_ids = list()
         fetched_ids = list()
         for _ in range(3):
-            name = data_utils.rand_name('Group')
-            description = data_utils.rand_name('Description')
-            group = self.groups_client.create_group(
-                name=name, domain_id=self.domain['id'],
-                description=description)['group']
-            self.addCleanup(self.groups_client.delete_group, group['id'])
+            group = self.setup_test_group(domain_id=self.domain['id'])
             group_ids.append(group['id'])
         # List and Verify Groups
         # When domain specific drivers are enabled the operations
diff --git a/tempest/api/identity/admin/v3/test_tokens.py b/tempest/api/identity/admin/v3/test_tokens.py
index 0845407..8ae43d6 100644
--- a/tempest/api/identity/admin/v3/test_tokens.py
+++ b/tempest/api/identity/admin/v3/test_tokens.py
@@ -19,7 +19,6 @@
 from tempest import config
 from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
-from tempest.lib import exceptions as lib_exc
 
 CONF = config.CONF
 
@@ -28,30 +27,6 @@
 
     credentials = ['primary', 'admin', 'alt']
 
-    @decorators.idempotent_id('0f9f5a5f-d5cd-4a86-8a5b-c5ded151f212')
-    def test_tokens(self):
-        # Valid user's token is authenticated
-        # Create a User
-        u_name = data_utils.rand_name('user')
-        u_desc = '%s-description' % u_name
-        u_password = data_utils.rand_password()
-        user = self.create_test_user(
-            name=u_name, description=u_desc, password=u_password)
-        # Perform Authentication
-        resp = self.token.auth(user_id=user['id'],
-                               password=u_password).response
-        subject_token = resp['x-subject-token']
-        self.client.check_token_existence(subject_token)
-        # Perform GET Token
-        token_details = self.client.show_token(subject_token)['token']
-        self.assertEqual(resp['x-subject-token'], subject_token)
-        self.assertEqual(token_details['user']['id'], user['id'])
-        self.assertEqual(token_details['user']['name'], u_name)
-        # Perform Delete Token
-        self.client.delete_token(subject_token)
-        self.assertRaises(lib_exc.NotFound, self.client.check_token_existence,
-                          subject_token)
-
     @decorators.idempotent_id('565fa210-1da1-4563-999b-f7b5b67cf112')
     def test_rescope_token(self):
         """Rescope a token.
@@ -201,10 +176,7 @@
             role_id = self.setup_test_role()['id']
 
             # Create a group.
-            group_name = data_utils.rand_name('Group')
-            group_id = self.groups_client.create_group(
-                name=group_name, domain_id=domain_id)['group']['id']
-            self.addCleanup(self.groups_client.delete_group, group_id)
+            group_id = self.setup_test_group(domain_id=domain_id)['id']
 
             # Add the alt user to the group.
             self.groups_client.add_group_user(group_id, alt_user_id)
diff --git a/tempest/api/identity/base.py b/tempest/api/identity/base.py
index 68f2c07..282343c 100644
--- a/tempest/api/identity/base.py
+++ b/tempest/api/identity/base.py
@@ -292,6 +292,20 @@
             self.delete_domain, domain['id'])
         return domain
 
+    def setup_test_group(self, **kwargs):
+        """Set up a test group."""
+        if 'name' not in kwargs:
+            kwargs['name'] = data_utils.rand_name(
+                self.__class__.__name__ + '_test_project')
+        if 'description' not in kwargs:
+            kwargs['description'] = data_utils.rand_name(
+                self.__class__.__name__ + '_test_description')
+        group = self.groups_client.create_group(**kwargs)['group']
+        self.addCleanup(
+            test_utils.call_and_ignore_notfound_exc,
+            self.groups_client.delete_group, group['id'])
+        return group
+
 
 class BaseApplicationCredentialsV3Test(BaseIdentityV3Test):
 
diff --git a/tempest/api/identity/v2/test_users.py b/tempest/api/identity/v2/test_users.py
index 9c77fff..158dfb3 100644
--- a/tempest/api/identity/v2/test_users.py
+++ b/tempest/api/identity/v2/test_users.py
@@ -84,7 +84,7 @@
         new_pass = data_utils.rand_password()
         user_id = self.creds.user_id
 
-        # to change password back. important for allow_tenant_isolation = false
+        # to change password back. important for use_dynamic_credentials=false
         self.addCleanup(self._restore_password, user_id, old_pass, new_pass)
 
         # user updates own password
diff --git a/tempest/api/identity/v3/test_tokens.py b/tempest/api/identity/v3/test_tokens.py
index 4c72d82..f13aa10 100644
--- a/tempest/api/identity/v3/test_tokens.py
+++ b/tempest/api/identity/v3/test_tokens.py
@@ -91,3 +91,28 @@
             self.assertIsNotNone(subject_name, 'Expected user name in token.')
 
         self.assertEqual(resp['methods'][0], 'password')
+
+    @decorators.idempotent_id('0f9f5a5f-d5cd-4a86-8a5b-c5ded151f212')
+    def test_token_auth_creation_existence_deletion(self):
+        # Tests basic token auth functionality in a way that is compatible with
+        # pre-provisioned credentials. The default user is used for token
+        # authentication.
+
+        # Valid user's token is authenticated
+        user = self.os_primary.credentials
+        # Perform Authentication
+        resp = self.non_admin_token.auth(
+            user_id=user.user_id, password=user.password).response
+        subject_token = resp['x-subject-token']
+        self.non_admin_client.check_token_existence(subject_token)
+        # Perform GET Token
+        token_details = self.non_admin_client.show_token(
+            subject_token)['token']
+        self.assertEqual(resp['x-subject-token'], subject_token)
+        self.assertEqual(token_details['user']['id'], user.user_id)
+        self.assertEqual(token_details['user']['name'], user.username)
+        # Perform Delete Token
+        self.non_admin_client.delete_token(subject_token)
+        self.assertRaises(lib_exc.NotFound,
+                          self.non_admin_client.check_token_existence,
+                          subject_token)
diff --git a/tempest/api/identity/v3/test_users.py b/tempest/api/identity/v3/test_users.py
index 1f099df..6d6baca 100644
--- a/tempest/api/identity/v3/test_users.py
+++ b/tempest/api/identity/v3/test_users.py
@@ -82,7 +82,7 @@
         old_token = self.non_admin_client.token
         new_pass = data_utils.rand_password()
 
-        # to change password back. important for allow_tenant_isolation = false
+        # to change password back. important for use_dynamic_credentials=false
         self.addCleanup(self._restore_password, old_pass, new_pass)
 
         # user updates own password
diff --git a/tempest/api/network/admin/test_negative_quotas.py b/tempest/api/network/admin/test_negative_quotas.py
index 6849653..e79f8c3 100644
--- a/tempest/api/network/admin/test_negative_quotas.py
+++ b/tempest/api/network/admin/test_negative_quotas.py
@@ -59,7 +59,7 @@
         # Try to create a third network while the quota is two
         with self.assertRaisesRegex(
                 lib_exc.Conflict,
-                "Quota exceeded for resources: \['network'\].*"):
+                r"Quota exceeded for resources: \['network'\].*"):
             n3 = self.networks_client.create_network()
             self.addCleanup(self.networks_client.delete_network,
                             n3['network']['id'])
diff --git a/tempest/api/volume/admin/test_user_messages.py b/tempest/api/volume/admin/test_user_messages.py
index 20c3538..9907497 100644
--- a/tempest/api/volume/admin/test_user_messages.py
+++ b/tempest/api/volume/admin/test_user_messages.py
@@ -62,8 +62,16 @@
         return message_id
 
     @decorators.idempotent_id('50f29e6e-f363-42e1-8ad1-f67ae7fd4d5a')
-    def test_list_messages(self):
-        self._create_user_message()
+    def test_list_show_messages(self):
+        message_id = self._create_user_message()
+        self.addCleanup(self.messages_client.delete_message, message_id)
+
+        # show message
+        message = self.messages_client.show_message(message_id)['message']
+        for key in MESSAGE_KEYS:
+            self.assertIn(key, message.keys(), 'Missing expected key %s' % key)
+
+        # list messages
         messages = self.messages_client.list_messages()['messages']
         self.assertIsInstance(messages, list)
         for message in messages:
@@ -71,16 +79,6 @@
                 self.assertIn(key, message.keys(),
                               'Missing expected key %s' % key)
 
-    @decorators.idempotent_id('55a4a61e-c7b2-4ba0-a05d-b914bdef3070')
-    def test_show_message(self):
-        message_id = self._create_user_message()
-        self.addCleanup(self.messages_client.delete_message, message_id)
-
-        message = self.messages_client.show_message(message_id)['message']
-
-        for key in MESSAGE_KEYS:
-            self.assertIn(key, message.keys(), 'Missing expected key %s' % key)
-
     @decorators.idempotent_id('c6eb6901-cdcc-490f-b735-4fe251842aed')
     def test_delete_message(self):
         message_id = self._create_user_message()
diff --git a/tempest/api/volume/admin/test_volume_retype.py b/tempest/api/volume/admin/test_volume_retype.py
index 423104b..1c56eb2 100644
--- a/tempest/api/volume/admin/test_volume_retype.py
+++ b/tempest/api/volume/admin/test_volume_retype.py
@@ -130,6 +130,8 @@
         for key in keys_with_change:
             self.assertNotEqual(volume_source[key], volume_dest[key])
 
+        self.assertEqual(volume_dest['volume_type'], self.dst_vol_type['name'])
+
     @decorators.idempotent_id('a1a41f3f-9dad-493e-9f09-3ff197d477cd')
     def test_available_volume_retype_with_migration(self):
         src_vol = self.create_volume(volume_type=self.src_vol_type['name'])
@@ -168,6 +170,8 @@
         for key in keys_with_change:
             self.assertNotEqual(volume_source[key], volume_dest[key])
 
+        self.assertEqual(volume_dest['volume_type'], self.dst_vol_type['name'])
+
     @decorators.idempotent_id('b90412ee-465d-46e9-b249-ec84a47d5f25')
     def test_available_volume_retype(self):
         src_vol = self.create_volume(volume_type=self.src_vol_type['name'])
diff --git a/tempest/cmd/account_generator.py b/tempest/cmd/account_generator.py
index 1c671ec..9be8ee2 100755
--- a/tempest/cmd/account_generator.py
+++ b/tempest/cmd/account_generator.py
@@ -311,5 +311,6 @@
         resources.extend(generate_resources(cred_provider, opts.admin))
     dump_accounts(resources, opts.identity_version, opts.accounts)
 
+
 if __name__ == "__main__":
     main()
diff --git a/tempest/cmd/init.py b/tempest/cmd/init.py
index 84c8631..d84f3a3 100644
--- a/tempest/cmd/init.py
+++ b/tempest/cmd/init.py
@@ -26,7 +26,7 @@
 
 LOG = logging.getLogger(__name__)
 
-STESTR_CONF = """[DEFAULT]
+STESTR_CONF = r"""[DEFAULT]
 test_path=%s
 top_dir=%s
 group_regex=([^\.]*\.)*
diff --git a/tempest/cmd/subunit_describe_calls.py b/tempest/cmd/subunit_describe_calls.py
index a4402fe..8dcf575 100644
--- a/tempest/cmd/subunit_describe_calls.py
+++ b/tempest/cmd/subunit_describe_calls.py
@@ -95,7 +95,7 @@
     ip_re = re.compile(r'(^|[^0-9])[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]'
                        '{1,3}([^0-9]|$)')
     url_re = re.compile(r'.*INFO.*Request \((?P<name>.*)\): (?P<code>[\d]{3}) '
-                        '(?P<verb>\w*) (?P<url>.*) .*')
+                        r'(?P<verb>\w*) (?P<url>.*) .*')
     port_re = re.compile(r'.*:(?P<port>\d+).*')
     path_re = re.compile(r'http[s]?://[^/]*/(?P<path>.*)')
     request_re = re.compile(r'.* Request - Headers: (?P<headers>.*)')
diff --git a/tempest/cmd/verify_tempest_config.py b/tempest/cmd/verify_tempest_config.py
index 15af271..aa333b3 100644
--- a/tempest/cmd/verify_tempest_config.py
+++ b/tempest/cmd/verify_tempest_config.py
@@ -488,5 +488,6 @@
             traceback.print_exc()
             raise
 
+
 if __name__ == "__main__":
     main()
diff --git a/tempest/common/credentials_factory.py b/tempest/common/credentials_factory.py
index 75db155..c6e5dcb 100644
--- a/tempest/common/credentials_factory.py
+++ b/tempest/common/credentials_factory.py
@@ -210,6 +210,7 @@
     except exceptions.InvalidConfiguration:
         return False
 
+
 # === Credentials
 
 # Type of credentials available from configuration
diff --git a/tempest/common/custom_matchers.py b/tempest/common/custom_matchers.py
index ed11b21..c702d88 100644
--- a/tempest/common/custom_matchers.py
+++ b/tempest/common/custom_matchers.py
@@ -225,9 +225,9 @@
             elif key in ('content-type', 'date', 'last-modified',
                          'x-copied-from-last-modified') and not value:
                 return InvalidFormat(key, value)
-            elif key == 'x-timestamp' and not re.match("^\d+\.?\d*\Z", value):
+            elif key == 'x-timestamp' and not re.match(r"^\d+\.?\d*\Z", value):
                 return InvalidFormat(key, value)
-            elif key == 'x-copied-from' and not re.match("\S+/\S+", value):
+            elif key == 'x-copied-from' and not re.match(r"\S+/\S+", value):
                 return InvalidFormat(key, value)
             elif key == 'x-trans-id' and \
                 not re.match("^tx[0-9a-f]{21}-[0-9a-f]{10}.*", value):
diff --git a/tempest/common/utils/__init__.py b/tempest/common/utils/__init__.py
index 225a713..167bf5b 100644
--- a/tempest/common/utils/__init__.py
+++ b/tempest/common/utils/__init__.py
@@ -40,6 +40,7 @@
         self.__dict__[attr] = attr_obj
         return attr_obj
 
+
 data_utils = DataUtils()
 
 
diff --git a/tempest/config.py b/tempest/config.py
index 1fb5c8e..cc0ba34 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -61,11 +61,7 @@
                      "users. This option requires that OpenStack Identity "
                      "API admin credentials are known. If false, isolated "
                      "test cases and parallel execution, can still be "
-                     "achieved configuring a list of test accounts",
-                deprecated_opts=[cfg.DeprecatedOpt('allow_tenant_isolation',
-                                                   group='auth'),
-                                 cfg.DeprecatedOpt('allow_tenant_isolation',
-                                                   group='compute')]),
+                     "achieved configuring a list of test accounts"),
     cfg.ListOpt('tempest_roles',
                 help="Roles to assign to all users created by tempest",
                 default=[]),
diff --git a/tempest/hacking/checks.py b/tempest/hacking/checks.py
index b6e7f8c..a57a360 100644
--- a/tempest/hacking/checks.py
+++ b/tempest/hacking/checks.py
@@ -287,10 +287,10 @@
     if pep8.noqa(physical_line):
         return
 
-    if not re.match('class .*Test.*\(.*Admin.*\):', logical_line):
+    if not re.match(r'class .*Test.*\(.*Admin.*\):', logical_line):
         return
 
-    if not re.match('.\/tempest\/api\/.*\/admin\/.*', filename):
+    if not re.match(r'.\/tempest\/api\/.*\/admin\/.*', filename):
         msg = 'T115: All admin tests should exist under admin path.'
         yield(0, msg)
 
diff --git a/tempest/lib/api_schema/response/compute/v2_1/flavors.py b/tempest/lib/api_schema/response/compute/v2_1/flavors.py
index af5e67f..43e80cc 100644
--- a/tempest/lib/api_schema/response/compute/v2_1/flavors.py
+++ b/tempest/lib/api_schema/response/compute/v2_1/flavors.py
@@ -82,10 +82,6 @@
     }
 }
 
-unset_flavor_extra_specs = {
-    'status_code': [200]
-}
-
 create_update_get_flavor_details = {
     'status_code': [200],
     'response_body': {
diff --git a/tempest/lib/api_schema/response/compute/v2_1/flavors_extra_specs.py b/tempest/lib/api_schema/response/compute/v2_1/flavors_extra_specs.py
index a438d48..3aa1eda 100644
--- a/tempest/lib/api_schema/response/compute/v2_1/flavors_extra_specs.py
+++ b/tempest/lib/api_schema/response/compute/v2_1/flavors_extra_specs.py
@@ -20,7 +20,7 @@
             'extra_specs': {
                 'type': 'object',
                 'patternProperties': {
-                    '^[a-zA-Z0-9_\-\. :]+$': {'type': 'string'}
+                    r'^[a-zA-Z0-9_\-\. :]+$': {'type': 'string'}
                 }
             }
         },
@@ -29,12 +29,16 @@
     }
 }
 
+unset_flavor_extra_specs = {
+    'status_code': [200]
+}
+
 set_get_flavor_extra_specs_key = {
     'status_code': [200],
     'response_body': {
         'type': 'object',
         'patternProperties': {
-            '^[a-zA-Z0-9_\-\. :]+$': {'type': 'string'}
+            r'^[a-zA-Z0-9_\-\. :]+$': {'type': 'string'}
         }
     }
 }
diff --git a/tempest/lib/api_schema/response/compute/v2_11/services.py b/tempest/lib/api_schema/response/compute/v2_11/services.py
index 18b833b..9ece1f9 100644
--- a/tempest/lib/api_schema/response/compute/v2_11/services.py
+++ b/tempest/lib/api_schema/response/compute/v2_11/services.py
@@ -44,3 +44,10 @@
         'required': ['service']
     }
 }
+
+# **** Schemas unchanged in microversion 2.11 since microversion 2.1 ****
+# Note(felipemonteiro): Below are the unchanged schema in this microversion. We
+# need to keep this schema in this file to have the generic way to select the
+# right schema based on self.schema_versions_info mapping in service client.
+enable_disable_service = copy.deepcopy(services.enable_disable_service)
+disable_log_reason = copy.deepcopy(services.disable_log_reason)
diff --git a/tempest/lib/api_schema/response/compute/v2_47/servers.py b/tempest/lib/api_schema/response/compute/v2_47/servers.py
index 935be70..5d6d4c3 100644
--- a/tempest/lib/api_schema/response/compute/v2_47/servers.py
+++ b/tempest/lib/api_schema/response/compute/v2_47/servers.py
@@ -26,7 +26,7 @@
         'extra_specs': {
             'type': 'object',
             'patternProperties': {
-                '^[a-zA-Z0-9_\-\. :]+$': {'type': 'string'}
+                r'^[a-zA-Z0-9_\-\. :]+$': {'type': 'string'}
             }
         }
     },
diff --git a/tempest/lib/api_schema/response/compute/v2_53/__init__.py b/tempest/lib/api_schema/response/compute/v2_53/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tempest/lib/api_schema/response/compute/v2_53/__init__.py
diff --git a/tempest/lib/api_schema/response/compute/v2_53/services.py b/tempest/lib/api_schema/response/compute/v2_53/services.py
new file mode 100644
index 0000000..aa132a9
--- /dev/null
+++ b/tempest/lib/api_schema/response/compute/v2_53/services.py
@@ -0,0 +1,70 @@
+# Copyright 2018 AT&T Corporation.
+# All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    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 tempest.lib.api_schema.response.compute.v2_1 import parameter_types
+from tempest.lib.api_schema.response.compute.v2_11 import services \
+    as servicesv211
+
+# ***************** Schemas changed in microversion 2.53 *****************
+
+# NOTE(felipemonteiro): This is schema for microversion 2.53 which includes:
+#
+# * changing the service 'id' to 'string' type only
+# * adding update_service which supersedes enable_service, disable_service,
+#   disable_log_reason, update_forced_down.
+
+list_services = copy.deepcopy(servicesv211.list_services)
+# The ID of the service is a uuid, so v2.1 pattern does not apply.
+list_services['response_body']['properties']['services']['items'][
+    'properties']['id'] = {'type': 'string', 'format': 'uuid'}
+
+update_service = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'service': {
+                'type': 'object',
+                'properties': {
+                    'id': {'type': 'string', 'format': 'uuid'},
+                    'binary': {'type': 'string'},
+                    'disabled_reason': {'type': 'string'},
+                    'host': {'type': 'string'},
+                    'state': {'type': 'string'},
+                    'status': {'type': 'string'},
+                    'updated_at': parameter_types.date_time,
+                    'zone': {'type': 'string'},
+                    'forced_down': {'type': 'boolean'}
+                },
+                'additionalProperties': False,
+                'required': ['id', 'binary', 'disabled_reason', 'host',
+                             'state', 'status', 'updated_at', 'zone',
+                             'forced_down']
+            }
+        },
+        'additionalProperties': False,
+        'required': ['service']
+    }
+}
+
+# **** Schemas unchanged in microversion 2.53 since microversion 2.11 ****
+# Note(felipemonteiro): Below are the unchanged schema in this microversion. We
+# need to keep this schema in this file to have the generic way to select the
+# right schema based on self.schema_versions_info mapping in service client.
+enable_disable_service = copy.deepcopy(servicesv211.enable_disable_service)
+update_forced_down = copy.deepcopy(servicesv211.update_forced_down)
+disable_log_reason = copy.deepcopy(servicesv211.disable_log_reason)
diff --git a/tempest/lib/api_schema/response/compute/v2_61/__init__.py b/tempest/lib/api_schema/response/compute/v2_61/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tempest/lib/api_schema/response/compute/v2_61/__init__.py
diff --git a/tempest/lib/api_schema/response/compute/v2_61/flavors.py b/tempest/lib/api_schema/response/compute/v2_61/flavors.py
new file mode 100644
index 0000000..381fb64
--- /dev/null
+++ b/tempest/lib/api_schema/response/compute/v2_61/flavors.py
@@ -0,0 +1,102 @@
+# Copyright 2018 NEC Corporation.  All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    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 tempest.lib.api_schema.response.compute.v2_1 import parameter_types
+from tempest.lib.api_schema.response.compute.v2_55 import flavors \
+    as flavorsv255
+
+# ****** Schemas changed in microversion 2.61 *****************
+
+# Note(gmann): This is schema for microversion 2.61 which includes the
+# Flavor extra_specs in the Response body of the following APIs:
+#    - ``PUT /flavors/{flavor_id}``
+#    - ``GET /flavors/detail``
+#    - ``GET /flavors/{flavor_id}``
+#    - ``POST /flavors``
+
+flavor_description = {
+    'type': ['string', 'null'],
+    'minLength': 0, 'maxLength': 65535
+}
+
+flavor_extra_specs = {
+    'type': 'object',
+    'patternProperties': {
+        '^[a-zA-Z0-9-_:. ]{1,255}$': {'type': 'string'}
+    }
+}
+
+common_flavor_info = {
+    'type': 'object',
+    'properties': {
+        'name': {'type': 'string'},
+        'links': parameter_types.links,
+        'ram': {'type': 'integer'},
+        'vcpus': {'type': 'integer'},
+        # 'swap' attributes comes as integer value but if it is empty
+        # it comes as "". So defining type of as string and integer.
+        'swap': {'type': ['integer', 'string']},
+        'disk': {'type': 'integer'},
+        'id': {'type': 'string'},
+        'OS-FLV-DISABLED:disabled': {'type': 'boolean'},
+        'os-flavor-access:is_public': {'type': 'boolean'},
+        'rxtx_factor': {'type': 'number'},
+        'OS-FLV-EXT-DATA:ephemeral': {'type': 'integer'},
+        'description': flavor_description,
+        'extra_specs': flavor_extra_specs
+    },
+    'additionalProperties': False,
+    # 'OS-FLV-DISABLED', 'os-flavor-access', 'rxtx_factor' and
+    # 'OS-FLV-EXT-DATA' are API extensions. so they are not 'required'.
+    'required': ['name', 'links', 'ram', 'vcpus', 'swap', 'disk', 'id',
+                 'description']
+}
+
+list_flavors_details = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'flavors': {
+                'type': 'array',
+                'items': common_flavor_info
+            },
+            # NOTE(gmann): flavors_links attribute is not necessary
+            # to be present always so it is not 'required'.
+            'flavors_links': parameter_types.links
+        },
+        'additionalProperties': False,
+        'required': ['flavors']
+    }
+}
+
+create_update_get_flavor_details = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'flavor': common_flavor_info
+        },
+        'additionalProperties': False,
+        'required': ['flavor']
+    }
+}
+
+# ****** Schemas unchanged in microversion 2.61 since microversion 2.55 ***
+# Note(gmann): Below are the unchanged schema in this microversion. We need
+# to keep this schema in this file to have the generic way to select the
+# right schema based on self.schema_versions_info mapping in service client.
+list_flavors = copy.deepcopy(flavorsv255.list_flavors)
diff --git a/tempest/lib/cli/output_parser.py b/tempest/lib/cli/output_parser.py
index a7d5e49..45d41c7 100644
--- a/tempest/lib/cli/output_parser.py
+++ b/tempest/lib/cli/output_parser.py
@@ -25,7 +25,7 @@
 LOG = logging.getLogger(__name__)
 
 
-delimiter_line = re.compile('^\+\-[\+\-]+\-\+$')
+delimiter_line = re.compile(r'^\+\-[\+\-]+\-\+$')
 
 
 def details_multiple(output_lines, with_label=False):
diff --git a/tempest/lib/cmd/check_uuid.py b/tempest/lib/cmd/check_uuid.py
index d1f0888..82fcd0b 100755
--- a/tempest/lib/cmd/check_uuid.py
+++ b/tempest/lib/cmd/check_uuid.py
@@ -358,5 +358,6 @@
                  "Run 'tox -v -e uuidgen' to automatically fix tests with\n"
                  "missing @decorators.idempotent_id decorators.")
 
+
 if __name__ == '__main__':
     run()
diff --git a/tempest/lib/common/rest_client.py b/tempest/lib/common/rest_client.py
index 22276d4..bc9cfe2 100644
--- a/tempest/lib/common/rest_client.py
+++ b/tempest/lib/common/rest_client.py
@@ -416,6 +416,8 @@
                           resp_body=None, extra=None):
         if 'X-Auth-Token' in req_headers:
             req_headers['X-Auth-Token'] = '<omitted>'
+        if 'X-Subject-Token' in req_headers:
+            req_headers['X-Subject-Token'] = '<omitted>'
         # A shallow copy is sufficient
         resp_log = resp.copy()
         if 'x-subject-token' in resp_log:
diff --git a/tempest/lib/services/compute/flavors_client.py b/tempest/lib/services/compute/flavors_client.py
index 4923d7e..2fad0a4 100644
--- a/tempest/lib/services/compute/flavors_client.py
+++ b/tempest/lib/services/compute/flavors_client.py
@@ -23,6 +23,8 @@
     as schema_extra_specs
 from tempest.lib.api_schema.response.compute.v2_55 import flavors \
     as schemav255
+from tempest.lib.api_schema.response.compute.v2_61 import flavors \
+    as schemav261
 from tempest.lib.common import rest_client
 from tempest.lib.services.compute import base_compute_client
 
@@ -31,7 +33,8 @@
 
     schema_versions_info = [
         {'min': None, 'max': '2.54', 'schema': schema},
-        {'min': '2.55', 'max': None, 'schema': schemav255}]
+        {'min': '2.55', 'max': '2.60', 'schema': schemav255},
+        {'min': '2.61', 'max': None, 'schema': schemav261}]
 
     def list_flavors(self, detail=False, **params):
         """Lists flavors.
@@ -202,7 +205,8 @@
         """
         resp, body = self.delete('flavors/%s/os-extra_specs/%s' %
                                  (flavor_id, key))
-        self.validate_response(schema.unset_flavor_extra_specs, resp, body)
+        self.validate_response(schema_extra_specs.unset_flavor_extra_specs,
+                               resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def list_flavor_access(self, flavor_id):
diff --git a/tempest/lib/services/compute/services_client.py b/tempest/lib/services/compute/services_client.py
index b046c35..d52de3a 100644
--- a/tempest/lib/services/compute/services_client.py
+++ b/tempest/lib/services/compute/services_client.py
@@ -20,6 +20,8 @@
 from tempest.lib.api_schema.response.compute.v2_1 import services as schema
 from tempest.lib.api_schema.response.compute.v2_11 import services \
     as schemav211
+from tempest.lib.api_schema.response.compute.v2_53 import services \
+    as schemav253
 from tempest.lib.common import rest_client
 from tempest.lib.services.compute import base_compute_client
 
@@ -28,7 +30,8 @@
 
     schema_versions_info = [
         {'min': None, 'max': '2.10', 'schema': schema},
-        {'min': '2.11', 'max': None, 'schema': schemav211}]
+        {'min': '2.11', 'max': '2.52', 'schema': schemav211},
+        {'min': '2.53', 'max': None, 'schema': schemav253}]
 
     def list_services(self, **params):
         """Lists all running Compute services for a tenant.
@@ -47,9 +50,30 @@
         self.validate_response(_schema.list_services, resp, body)
         return rest_client.ResponseBody(resp, body)
 
+    def update_service(self, service_id, **kwargs):
+        """Update a compute service.
+
+        Update a compute service to enable or disable scheduling, including
+        recording a reason why a compute service was disabled from scheduling.
+
+        This API is available starting with microversion 2.53.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/compute/#update-compute-service
+        """
+        put_body = json.dumps(kwargs)
+        resp, body = self.put('os-services/%s' % service_id, put_body)
+        body = json.loads(body)
+        _schema = self.get_schema(self.schema_versions_info)
+        self.validate_response(_schema.update_service, resp, body)
+        return rest_client.ResponseBody(resp, body)
+
     def enable_service(self, **kwargs):
         """Enable service on a host.
 
+        ``update_service`` supersedes this API starting with microversion 2.53.
+
         For a full list of available parameters, please refer to the official
         API reference:
         https://developer.openstack.org/api-ref/compute/#enable-scheduling-for-a-compute-service
@@ -63,6 +87,8 @@
     def disable_service(self, **kwargs):
         """Disable service on a host.
 
+        ``update_service`` supersedes this API starting with microversion 2.53.
+
         For a full list of available parameters, please refer to the official
         API reference:
         https://developer.openstack.org/api-ref/compute/#disable-scheduling-for-a-compute-service
@@ -76,6 +102,8 @@
     def disable_log_reason(self, **kwargs):
         """Disables scheduling for a Compute service and logs reason.
 
+        ``update_service`` supersedes this API starting with microversion 2.53.
+
         For a full list of available parameters, please refer to the official
         API reference:
         https://developer.openstack.org/api-ref/compute/#disable-scheduling-for-a-compute-service-and-log-disabled-reason
@@ -89,6 +117,8 @@
     def update_forced_down(self, **kwargs):
         """Set or unset ``forced_down`` flag for the service.
 
+        ``update_service`` supersedes this API starting with microversion 2.53.
+
         For a full list of available parameters, please refer to the official
         API reference:
         https://developer.openstack.org/api-ref/compute/#update-forced-down
diff --git a/tempest/lib/services/network/agents_client.py b/tempest/lib/services/network/agents_client.py
index a0f832e..5068121 100644
--- a/tempest/lib/services/network/agents_client.py
+++ b/tempest/lib/services/network/agents_client.py
@@ -87,9 +87,11 @@
         return self.delete_resource(uri)
 
     def add_dhcp_agent_to_network(self, agent_id, **kwargs):
-        # TODO(piyush): Current api-site doesn't contain this API description.
-        # After fixing the api-site, we need to fix here also for putting the
-        # link to api-site.
-        # LP: https://bugs.launchpad.net/openstack-api-site/+bug/1526212
+        """Schedule a network to a DHCP agent.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/network/v2/#schedule-a-network-to-a-dhcp-agent
+        """
         uri = '/agents/%s/dhcp-networks' % agent_id
         return self.create_resource(uri, kwargs, expect_empty_body=True)
diff --git a/tempest/lib/services/volume/v3/snapshots_client.py b/tempest/lib/services/volume/v3/snapshots_client.py
index f79bcd8..08e6c94 100644
--- a/tempest/lib/services/volume/v3/snapshots_client.py
+++ b/tempest/lib/services/volume/v3/snapshots_client.py
@@ -114,12 +114,12 @@
         return rest_client.ResponseBody(resp, body)
 
     def update_snapshot_status(self, snapshot_id, **kwargs):
-        """Update the specified snapshot's status."""
-        # TODO(gmann): api-site doesn't contain doc ref
-        # for this API. After fixing the api-site, we need to
-        # add the link here.
-        # Bug https://bugs.launchpad.net/openstack-api-site/+bug/1532645
+        """Update status of a snapshot.
 
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/block-storage/v3/#update-status-of-a-snapshot
+        """
         post_body = json.dumps({'os-update_snapshot_status': kwargs})
         url = 'snapshots/%s/action' % snapshot_id
         resp, body = self.post(url, post_body)
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index 9965fe5..145dcf1 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -443,7 +443,9 @@
                                        disk_format=img_disk_format,
                                        properties=img_properties)
         except IOError:
-            LOG.debug("A qcow2 image was not found. Try to get a uec image.")
+            LOG.warning(
+                "A(n) %s image was not found. Retrying with uec image.",
+                img_disk_format)
             kernel = self._image_create('scenario-aki', 'aki', aki_img_path)
             ramdisk = self._image_create('scenario-ari', 'ari', ari_img_path)
             properties = {'kernel_id': kernel, 'ramdisk_id': ramdisk}
diff --git a/tempest/scenario/test_network_basic_ops.py b/tempest/scenario/test_network_basic_ops.py
index bcd4ddb..8212e75 100644
--- a/tempest/scenario/test_network_basic_ops.py
+++ b/tempest/scenario/test_network_basic_ops.py
@@ -435,7 +435,6 @@
     @testtools.skipIf(CONF.network.shared_physical_network,
                       'Connectivity can only be tested when in a '
                       'multitenant network environment')
-    @decorators.skip_because(bug="1610994")
     @decorators.attr(type='slow')
     @utils.services('compute', 'network')
     def test_connectivity_between_vms_on_different_networks(self):
diff --git a/tempest/tests/common/utils/linux/test_remote_client.py b/tempest/tests/common/utils/linux/test_remote_client.py
index 739357b..1f0080f 100644
--- a/tempest/tests/common/utils/linux/test_remote_client.py
+++ b/tempest/tests/common/utils/linux/test_remote_client.py
@@ -77,7 +77,7 @@
 
     def test_write_to_console_special_chars(self):
         self._test_write_to_console_helper(
-            '\`',
+            r'\`',
             'sudo sh -c "echo \\"\\\\\\`\\" >/dev/console"')
         self.conn.write_to_console('$')
         self._assert_exec_called_with(
diff --git a/tempest/tests/fake_config.py b/tempest/tests/fake_config.py
index 4a2fff4..be54130 100644
--- a/tempest/tests/fake_config.py
+++ b/tempest/tests/fake_config.py
@@ -59,6 +59,7 @@
         self._set_attrs()
         self.lock_path = cfg.CONF.oslo_concurrency.lock_path
 
+
 fake_service1_group = cfg.OptGroup(name='fake-service1', title='Fake service1')
 
 FakeService1Group = [
diff --git a/tempest/tests/lib/common/utils/test_data_utils.py b/tempest/tests/lib/common/utils/test_data_utils.py
index b8385b2..a0267d0 100644
--- a/tempest/tests/lib/common/utils/test_data_utils.py
+++ b/tempest/tests/lib/common/utils/test_data_utils.py
@@ -88,7 +88,7 @@
     def test_rand_url(self):
         actual = data_utils.rand_url()
         self.assertIsInstance(actual, str)
-        self.assertRegex(actual, "^https://url-[0-9]*\.com$")
+        self.assertRegex(actual, r"^https://url-[0-9]*\.com$")
         actual2 = data_utils.rand_url()
         self.assertNotEqual(actual, actual2)
 
diff --git a/tempest/tests/lib/services/compute/test_services_client.py b/tempest/tests/lib/services/compute/test_services_client.py
index 2dd981c..ba432e3 100644
--- a/tempest/tests/lib/services/compute/test_services_client.py
+++ b/tempest/tests/lib/services/compute/test_services_client.py
@@ -56,6 +56,20 @@
         }
     }
 
+    FAKE_UPDATE_SERVICE = {
+        "service": {
+            "id": "e81d66a4-ddd3-4aba-8a84-171d1cb4d339",
+            "binary": "nova-compute",
+            "disabled_reason": "test2",
+            "host": "host1",
+            "state": "down",
+            "status": "disabled",
+            "updated_at": "2012-10-29T13:42:05.000000",
+            "forced_down": False,
+            "zone": "nova"
+        }
+    }
+
     def setUp(self):
         super(TestServicesClient, self).setUp()
         fake_auth = fake_auth_provider.FakeAuthProvider()
@@ -119,6 +133,28 @@
             binary="controller",
             disabled_reason='test reason')
 
+    def _test_update_service(self, bytes_body=False, status=None,
+                             disabled_reason=None, forced_down=None):
+        resp_body = copy.deepcopy(self.FAKE_UPDATE_SERVICE)
+        kwargs = {}
+
+        if status is not None:
+            kwargs['status'] = status
+        if disabled_reason is not None:
+            kwargs['disabled_reason'] = disabled_reason
+        if forced_down is not None:
+            kwargs['forced_down'] = forced_down
+
+        resp_body['service'].update(kwargs)
+
+        self.check_service_client_function(
+            self.client.update_service,
+            'tempest.lib.common.rest_client.RestClient.put',
+            resp_body,
+            bytes_body,
+            service_id=resp_body['service']['id'],
+            **kwargs)
+
     def test_log_reason_disabled_service_with_str_body(self):
         self._test_log_reason_disabled_service()
 
@@ -144,3 +180,36 @@
                        new_callable=mock.PropertyMock(return_value='2.11'))
     def test_update_forced_down_with_bytes_body(self, _):
         self._test_update_forced_down(bytes_body=True)
+
+    @mock.patch.object(base_compute_client, 'COMPUTE_MICROVERSION',
+                       new_callable=mock.PropertyMock(return_value='2.53'))
+    def test_update_service_disable_scheduling_with_str_body(self, _):
+        self._test_update_service(status='disabled',
+                                  disabled_reason='maintenance')
+
+    @mock.patch.object(base_compute_client, 'COMPUTE_MICROVERSION',
+                       new_callable=mock.PropertyMock(return_value='2.53'))
+    def test_update_service_disable_scheduling_with_bytes_body(self, _):
+        self._test_update_service(status='disabled',
+                                  disabled_reason='maintenance',
+                                  bytes_body=True)
+
+    @mock.patch.object(base_compute_client, 'COMPUTE_MICROVERSION',
+                       new_callable=mock.PropertyMock(return_value='2.53'))
+    def test_update_service_enable_scheduling_with_str_body(self, _):
+        self._test_update_service(status='enabled')
+
+    @mock.patch.object(base_compute_client, 'COMPUTE_MICROVERSION',
+                       new_callable=mock.PropertyMock(return_value='2.53'))
+    def test_update_service_enable_scheduling_with_bytes_body(self, _):
+        self._test_update_service(status='enabled', bytes_body=True)
+
+    @mock.patch.object(base_compute_client, 'COMPUTE_MICROVERSION',
+                       new_callable=mock.PropertyMock(return_value='2.53'))
+    def test_update_service_forced_down_with_str_body(self, _):
+        self._test_update_service(forced_down=True)
+
+    @mock.patch.object(base_compute_client, 'COMPUTE_MICROVERSION',
+                       new_callable=mock.PropertyMock(return_value='2.53'))
+    def test_update_service_forced_down_with_bytes_body(self, _):
+        self._test_update_service(forced_down=True, bytes_body=True)
diff --git a/tempest/tests/test_list_tests.py b/tempest/tests/test_list_tests.py
index 4af7463..1cc9c9a 100644
--- a/tempest/tests/test_list_tests.py
+++ b/tempest/tests/test_list_tests.py
@@ -34,7 +34,7 @@
                          "error on import %s" % ids)
         ids = six.text_type(ids).split('\n')
         for test_id in ids:
-            if re.match('(\w+\.){3}\w+', test_id):
+            if re.match(r'(\w+\.){3}\w+', test_id):
                 if not test_id.startswith('tempest.'):
                     parts = test_id.partition('tempest')
                     fail_id = parts[1] + parts[2]
diff --git a/tools/check_logs.py b/tools/check_logs.py
index b80ccc0..de7e41d 100755
--- a/tools/check_logs.py
+++ b/tools/check_logs.py
@@ -96,7 +96,7 @@
 def collect_url_logs(url):
     page = urlreq.urlopen(url)
     content = page.read()
-    logs = re.findall('(screen-[\w-]+\.txt\.gz)</a>', content)
+    logs = re.findall(r'(screen-[\w-]+\.txt\.gz)</a>', content)
     return logs
 
 
@@ -162,6 +162,7 @@
     print("ok")
     return 0
 
+
 usage = """
 Find non-white-listed log errors in log files from a devstack-gate run.
 Log files will be searched for ERROR or CRITICAL messages. If any
diff --git a/tools/generate-tempest-plugins-list.py b/tools/generate-tempest-plugins-list.py
index bbb9019..4eb78fb 100644
--- a/tools/generate-tempest-plugins-list.py
+++ b/tools/generate-tempest-plugins-list.py
@@ -63,12 +63,13 @@
     except HTTPError as err:
         if err.code == 404:
             return False
-    p = re.compile('^tempest\.test_plugins', re.M)
+    p = re.compile(r'^tempest\.test_plugins', re.M)
     if p.findall(r.read().decode('utf-8')):
         return True
     else:
         False
 
+
 r = urllib.urlopen(url)
 # Gerrit prepends 4 garbage octets to the JSON, in order to counter
 # cross-site scripting attacks.  Therefore we must discard it so the
diff --git a/tox.ini b/tox.ini
index da0233a..de4f1b7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,7 +19,7 @@
     OS_STDOUT_CAPTURE=1
     OS_STDERR_CAPTURE=1
     OS_TEST_TIMEOUT=160
-    PYTHONWARNINGS=default::DeprecationWarning
+    PYTHONWARNINGS=default::DeprecationWarning,ignore::DeprecationWarning:distutils,ignore::DeprecationWarning:site
 passenv = OS_STDOUT_CAPTURE OS_STDERR_CAPTURE OS_TEST_TIMEOUT OS_TEST_LOCK_PATH TEMPEST_CONFIG TEMPEST_CONFIG_DIR http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY ZUUL_CACHE_DIR REQUIREMENTS_PIP_LOCATION GENERATE_TEMPEST_PLUGIN_LIST
 usedevelop = True
 install_command = pip install {opts} {packages}