Help: Polish discover_tests with build dependencies

Add a release note and version information pertaining to commit
463517fddd (ctest: Support Test Dependencies for discover_test modules,
2026-08-18).

Help/command/discover_tests.rst

@@ -96,6 +96,8 @@ the provided regular expression and replacement strings.
     determines the behavior when the :ctest-option:`--repeat` option is used.
 
 ``BUILD_DEPENDS``
+  .. versionadded:: 4.5
+
   Specify a list of targets or files that must be built before the test
   discovery can run.
 

Help/release/dev/discover-tests-build-depends.rst

@@ -0,0 +1,8 @@
+discover-tests-build-depends
+----------------------------
+
+* The :command:`discover_tests` command gained a ``BUILD_DEPENDS`` argument to
+  support the :ctest-option:`--out-of-date` behavior of :manual:`ctest(1)`.
+
+* The :prop_dir:`CMAKE_TEST_BUILD_DEPENDS` directory property was added to
+  support directory-scoped build time dependencies for tests.

Help/variable/CMAKE_TEST_BUILD_DEPENDS.rst

@@ -3,23 +3,25 @@ CMAKE_TEST_BUILD_DEPENDS
 
 .. versionadded:: 4.4
 
-.. versionchanged:: 4.5
-
-  :generator:`FASTBuild` and the :ref:`Makefile Generators` gained support
-  for ``test_prep/<name>`` targets.
-
 Enable ``test_prep/<name>`` build targets for tests added by
 :command:`add_test` when using the :ref:`Ninja Generators`,
 :generator:`FASTBuild`, or :ref:`Makefile Generators`.
 
+.. versionadded:: 4.5
+
+  :generator:`FASTBuild` and the :ref:`Makefile Generators` gained support
+  for ``test_prep/<name>`` targets.
+
 When this variable is set to a true value, CMake generates a
 ``test_prep/<name>`` target for each eligible test and a ``test_prep/all``
 target for all such tests. Building these targets ensures the test executable,
 targets referenced by test command generator expressions, and explicit
 ``BUILD_DEPENDS`` entries are up-to-date before the test runs.
 
-Modules may also extend ``test_prep/all`` with directory-scoped dependencies
-via the :prop_dir:`CMAKE_TEST_BUILD_DEPENDS` directory property.
+.. versionadded:: 4.5
+
+  Modules may also extend ``test_prep/all`` with directory-scoped dependencies
+  via the :prop_dir:`CMAKE_TEST_BUILD_DEPENDS` directory property.
 
 Tests whose names are not valid target names are excluded from this behavior.
 If multiple tests in different directories share the same name, their