diff --git a/doc/develop/toolchains/crosstool_ng.rst b/doc/develop/toolchains/crosstool_ng.rst
index e2b751ff7314..dc51b9b36fc7 100644
--- a/doc/develop/toolchains/crosstool_ng.rst
+++ b/doc/develop/toolchains/crosstool_ng.rst
@@ -1,5 +1,13 @@
-Crosstool-NG
-############
+.. _toolchain_xtools:
+
+Crosstool-NG (Deprecated)
+#########################
+
+.. warning::
+
+   ``xtools`` toolchain variant is deprecated. The
+   :ref:`cross-compile toolchain variant <other_x_compilers>` should be used
+   when using a custom toolchain built with Crosstool-NG.
 
 You can build toolchains from source code using crosstool-NG.
 
diff --git a/doc/releases/release-notes-3.3.rst b/doc/releases/release-notes-3.3.rst
index 3735db706a34..7be2febe4d2f 100644
--- a/doc/releases/release-notes-3.3.rst
+++ b/doc/releases/release-notes-3.3.rst
@@ -166,6 +166,10 @@ Removed APIs in this release
 Deprecated in this release
 ==========================
 
+* :ref:`xtools toolchain variant <toolchain_xtools>` is now deprecated. When using a
+  custom toolchain built with Crosstool-NG, the
+  :ref:`cross-compile toolchain variant <other_x_compilers>` should be used instead.
+
 * C++ library Kconfig options have been renamed to improve consistency. See
   below for the list of deprecated Kconfig options and their replacements: