diff --git a/doc/releases/migration-guide-4.0.rst b/doc/releases/migration-guide-4.0.rst
index 00ec39edeafbe67..ce79ae9efdd7f43 100644
--- a/doc/releases/migration-guide-4.0.rst
+++ b/doc/releases/migration-guide-4.0.rst
@@ -207,6 +207,11 @@ hawkBit
 * :c:func:`hawkbit_autohandler` now takes one argument. This argument has to be set to
   ``true`` for the same behavior as before the change. (:github:`71037`)
 
+* ``<zephyr/mgmt/hawkbit.h>`` is deprecated in favor of ``<zephyr/mgmt/hawkbit/hawkbit.h>``.
+  The old header will be removed in future releases and its usage should be avoided.
+  The hawkbit autohandler has been separated into ``<zephyr/mgmt/hawkbit/autohandler.h>``.
+  The configuration part of hawkbit is now in ``<zephyr/mgmt/hawkbit/config.h>``. (:github:`71037`)
+
 MCUmgr
 ======
 
diff --git a/doc/releases/release-notes-4.0.rst b/doc/releases/release-notes-4.0.rst
index d50fa22cb627e84..af56cc266e7d7fc 100644
--- a/doc/releases/release-notes-4.0.rst
+++ b/doc/releases/release-notes-4.0.rst
@@ -302,6 +302,11 @@ Libraries / Subsystems
     * Use the :c:func:`hawkbit_autohandler_set_delay` function to delay the next run of the
       autohandler.
 
+    * The hawkBit header file was separated into multiple header files. The main header file is now
+      ``<zephyr/mgmt/hawkbit/hawkbit.h>``, the autohandler header file is now
+      ``<zephyr/mgmt/hawkbit/autohandler.h>`` and the configuration header file is now
+      ``<zephyr/mgmt/hawkbit/config.h>``.
+
 * Logging
 
 * Modem modules