diff --git a/Help/command/DEPRECATED_POLICY_VERSIONS.txt b/Help/command/DEPRECATED_POLICY_VERSIONS.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7c68260042cd4318f015862f900158a7b6dd4a14
--- /dev/null
+++ b/Help/command/DEPRECATED_POLICY_VERSIONS.txt
@@ -0,0 +1,15 @@
+.. versionchanged:: 3.27
+
+  Compatibility with versions of CMake older than 3.5 is deprecated.
+  Calls to :command:`cmake_minimum_required(VERSION)` or
+  :command:`cmake_policy(VERSION)` that do not specify at least
+  3.5 as their policy version (optionally via ``...<max>``)
+  will produce a deprecation warning in CMake 3.27 and above.
+
+.. versionchanged:: 3.19
+
+  Compatibility with versions of CMake older than 2.8.12 is deprecated.
+  Calls to :command:`cmake_minimum_required(VERSION)` or
+  :command:`cmake_policy(VERSION)` that do not specify at least
+  2.8.12 as their policy version (optionally via ``...<max>``)
+  will produce a deprecation warning in CMake 3.19 and above.
diff --git a/Help/command/cmake_minimum_required.rst b/Help/command/cmake_minimum_required.rst
index 031bd5690e16f978ad5503fc053625b48fab9fed..de2c8f3178b05abf41aa81d34520d41624892a13 100644
--- a/Help/command/cmake_minimum_required.rst
+++ b/Help/command/cmake_minimum_required.rst
@@ -80,6 +80,8 @@ invokes
 
 which enables compatibility features for CMake 2.4 and lower.
 
+.. include:: DEPRECATED_POLICY_VERSIONS.txt
+
 See Also
 ^^^^^^^^
 
diff --git a/Help/command/cmake_policy.rst b/Help/command/cmake_policy.rst
index cde74a733cdf85e9be418341ad05f994ff27dda0..d7880bc213a9dd543ace7c5953fb10694ef3b498 100644
--- a/Help/command/cmake_policy.rst
+++ b/Help/command/cmake_policy.rst
@@ -52,6 +52,8 @@ version and tells newer CMake versions to warn about their new policies.
 Note that the :command:`cmake_minimum_required(VERSION)`
 command implicitly calls ``cmake_policy(VERSION)`` too.
 
+.. include:: DEPRECATED_POLICY_VERSIONS.txt
+
 Setting Policies Explicitly
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^