diff --git a/deploy-guide/source/deploymenthost.rst b/deploy-guide/source/deploymenthost.rst
index fc9db4b8a9..10d8f27a51 100644
--- a/deploy-guide/source/deploymenthost.rst
+++ b/deploy-guide/source/deploymenthost.rst
@@ -25,7 +25,6 @@ Install one of the following supported operating systems on the deployment
 hosts:
 
 * `Ubuntu server 16.04 (Xenial Xerus) LTS 64-bit <http://releases.ubuntu.com/16.04/>`_
-* `Ubuntu server 14.04 (Trusty Tahr) LTS 64-bit <http://releases.ubuntu.com/14.04/>`_
 
 Configure at least one network interface to access the Internet or suitable
 local repositories.
diff --git a/deploy-guide/source/overview-requirements.rst b/deploy-guide/source/overview-requirements.rst
index aa1e3d2f23..5cc8130785 100644
--- a/deploy-guide/source/overview-requirements.rst
+++ b/deploy-guide/source/overview-requirements.rst
@@ -11,16 +11,9 @@ Software requirements
 Ensure that all hosts within an OpenStack-Ansible (OSA) environment meet the
 following minimum requirements:
 
-* Ubuntu 16.04 LTS (Xenial Xerus) or Ubuntu 14.04 LTS (Trusty Tahr)
+* Ubuntu 16.04 LTS (Xenial Xerus)
 
-  * OpenStack-Ansible is tested regularly against the latest point releases of
-    Ubuntu 16.04 LTS and Ubuntu 14.04 LTS.
-  * Linux kernel version ``3.13.0-34-generic`` or later is required.
-  * For Trusty hosts, you must enable the ``trusty-backports`` or the
-    repositories in ``/etc/apt/sources.list`` or
-    ``/etc/apt/sources.list.d/``. For detailed instructions, see the
-    `Ubuntu documentation <https://help.ubuntu.com/community/
-    UbuntuBackports#Enabling_Backports_Manually>`_.
+* Linux kernel version ``3.13.0-34-generic`` or later is required.
 
 * Secure Shell (SSH) client and server that support public key
   authentication
diff --git a/deploy-guide/source/targethosts-prepare.rst b/deploy-guide/source/targethosts-prepare.rst
index 8817d04234..8923daa8d7 100644
--- a/deploy-guide/source/targethosts-prepare.rst
+++ b/deploy-guide/source/targethosts-prepare.rst
@@ -13,7 +13,6 @@ Install one of the following supported operating systems on the
 target host:
 
 * Ubuntu server 16.04 (Xenial Xerus) LTS 64-bit
-* Ubuntu server 14.04 (Trusty Tahr) LTS 64-bit
 
 Configure at least one network interface to access the Internet or
 suitable local repositories.
diff --git a/doc/source/developer-docs/installation-hosts-limited-connectivity.rst b/doc/source/developer-docs/installation-hosts-limited-connectivity.rst
index ad8a38964b..d5c0039cf3 100644
--- a/doc/source/developer-docs/installation-hosts-limited-connectivity.rst
+++ b/doc/source/developer-docs/installation-hosts-limited-connectivity.rst
@@ -54,9 +54,8 @@ packages. We advise mirroring the repositories that host these packages.
 
 Ubuntu repositories to mirror:
 
-- trusty
-- trusty-updates
-- trusty-backports
+- xenial
+- xenial-updates
 
 Galera-related repositories to mirror:
 
diff --git a/doc/source/developer-docs/scripts.rst b/doc/source/developer-docs/scripts.rst
index e765b416a9..f4f3d726bf 100644
--- a/doc/source/developer-docs/scripts.rst
+++ b/doc/source/developer-docs/scripts.rst
@@ -213,8 +213,8 @@ following jobs:
 * ``gate-openstack-ansible-linters-ubuntu-xenial``: This job executes
   the `Lint Tests`_.
 
-* ``gate-openstack-ansible-openstack-ansible-aio-ubuntu-trusty``: where
-  ``aio`` is the scenario, ``ubuntu`` is the distribution, and ``trusty``
+* ``gate-openstack-ansible-openstack-ansible-aio-ubuntu-xenial``: where
+  ``aio`` is the scenario, ``ubuntu`` is the distribution, and ``xenial``
   is the version of the distribution.
 
   The same test is executed against multiple distribution versions, and
diff --git a/playbooks/openstack-hosts-setup.yml b/playbooks/openstack-hosts-setup.yml
index cd4aef997f..ff4dfe7d87 100644
--- a/playbooks/openstack-hosts-setup.yml
+++ b/playbooks/openstack-hosts-setup.yml
@@ -22,10 +22,9 @@
     - name: Check for a supported Operating System
       assert:
         that:
-          - ansible_distribution_release | lower == 'trusty' or
-            ansible_distribution_release | lower == 'xenial' or
-            "{{ ansible_os_family | lower }}-{{ ansible_distribution_major_version | lower }}" == "redhat-7"
-        msg: "The only supported platforms for this release are Ubuntu 14.04 LTS (Trusty), Ubuntu 16.04 LTS (Xenial) and CentOS 7 (WIP)"
+          - (ansible_distribution == 'Ubuntu' and ansible_distribution_release == 'xenial') or
+            (ansible_os_family == 'RedHat' and ansible_distribution_major_version == '7')
+        msg: "The only supported platforms for this release are Ubuntu 16.04 LTS (Xenial) and CentOS 7 (WIP)"
   roles:
     - role: "openstack_hosts"
   tags:
diff --git a/playbooks/roles/system_crontab_coordination/meta/main.yml b/playbooks/roles/system_crontab_coordination/meta/main.yml
index 234099dfd5..a646c2755d 100644
--- a/playbooks/roles/system_crontab_coordination/meta/main.yml
+++ b/playbooks/roles/system_crontab_coordination/meta/main.yml
@@ -22,7 +22,7 @@ galaxy_info:
   platforms:
   - name: Ubuntu
     versions:
-    - trusty
+    - xenial
   categories:
     - cloud
     - openstack
diff --git a/tests/roles/bootstrap-host/tasks/check-requirements.yml b/tests/roles/bootstrap-host/tasks/check-requirements.yml
index 5691ec9a0c..5cf0d97fde 100644
--- a/tests/roles/bootstrap-host/tasks/check-requirements.yml
+++ b/tests/roles/bootstrap-host/tasks/check-requirements.yml
@@ -16,10 +16,9 @@
 - name: Check for a supported Operating System
   assert:
     that:
-      - ansible_distribution | lower == 'ubuntu'
-      - ansible_distribution_release | lower == 'trusty' or
-        ansible_distribution_release | lower == 'xenial'
-    msg: "The only supported platforms for this release are Ubuntu 14.04 LTS (Trusty) and Ubuntu 16.04 LTS (Xenial)"
+      - (ansible_distribution == 'Ubuntu' and ansible_distribution_release == 'xenial') or
+        (ansible_os_family == 'RedHat' and ansible_distribution_major_version == '7')
+    msg: "The only supported platforms for this release are Ubuntu 16.04 LTS (Xenial) and CentOS 7 (WIP)"
   tags:
     - check-operating-system
 
diff --git a/tests/roles/bootstrap-host/templates/user_variables.aio.yml.j2 b/tests/roles/bootstrap-host/templates/user_variables.aio.yml.j2
index d427d13d07..cd70c077f5 100644
--- a/tests/roles/bootstrap-host/templates/user_variables.aio.yml.j2
+++ b/tests/roles/bootstrap-host/templates/user_variables.aio.yml.j2
@@ -83,7 +83,7 @@ repo_build_git_cache: {{ repo_build_git_cache }}
 
 # The container backing store is set to 'overlayfs' to speed up the
 # AIO build time.
-lxc_container_backing_store: "{{ ((ansible_kernel | version_compare('3.18.0-0-generic', '<')) or (ansible_distribution_release | lower == 'trusty')) | ternary('dir', 'overlayfs') }}"
+lxc_container_backing_store: "{{ (ansible_kernel | version_compare('3.18.0-0-generic', '<')) | ternary('dir', 'overlayfs') }}"
 
 ## Enable LBaaSv2 in the AIO
 neutron_plugin_base: