diff --git a/doc/guides/west/release-notes.rst b/doc/guides/west/release-notes.rst
index 9aa5ac18b45..6dfc9d14db2 100644
--- a/doc/guides/west/release-notes.rst
+++ b/doc/guides/west/release-notes.rst
@@ -6,14 +6,49 @@ v0.10.0
 
 New features:
 
+- The ``name`` key in a project's :ref:`submodules list
+  <west-manifest-submodules>` is now optional.
+
+Bug fixes:
+
+- West now checks that the manifest schema version is one of the explicitly
+  allowed vlaues documented in :ref:`west-manifest-schema-version`. The old
+  behavior was just to check that the schema version was newer than the west
+  version where the ``manifest: version:`` key was introduced. This incorrectly
+  allowed invalid schema versions, like ``0.8.2``.
+
+Other changes:
+
 - A manifest file's ``group-filter`` is now propagated through an ``import``.
   This is a change from how west v0.9.x handled this. In west v0.9.x, only the
   top level manifest file's ``group-filter`` had any effect; the group filter
-  lists from any imported manifests were ignored. Starting with west v0.10.0,
-  the group filter lists from imported manifests are also imported. For
-  details, see :ref:`west-group-filter-imports`.
+  lists from any imported manifests were ignored.
 
-- The ``name`` key in a project's submodules list is now optional.
+  Starting with west v0.10.0, the group filter lists from imported manifests
+  are also imported. For details, see :ref:`west-group-filter-imports`.
+
+  The new behavior will take effect if ``manifest: version:`` is not given or
+  is at least ``0.10``. The old behavior is still available in the top level
+  manifest file only with an explicit ``manifest: version: 0.9``. See
+  :ref:`west-manifest-schema-version` for more information on schema versions.
+
+  See `west pull request #482
+  <https://github.com/zephyrproject-rtos/west/pull/482>`_ for the motivation
+  for this change and additional context.
+
+v0.9.1
+******
+
+Bug fixes:
+
+- Commands like ``west manifest --resolve`` now correctly include group and
+  group filter information.
+
+Other changes:
+
+- West now warns if you combine ``import`` with ``group-filter``. Semantics for
+  this combination have changed starting with v0.10.x. See the v0.10.0 release
+  notes above for more information.
 
 v0.9.0
 ******