doc: update migration guide with mesh dependency
Commit adds description of the mesh dependency on
the secure storage subsytem.
Signed-off-by: Aleksandr Khromykh <aleksandr.khromykh@nordicsemi.no>
diff --git a/doc/releases/migration-guide-4.1.rst b/doc/releases/migration-guide-4.1.rst
index 02938b9..db5249e 100644
--- a/doc/releases/migration-guide-4.1.rst
+++ b/doc/releases/migration-guide-4.1.rst
@@ -387,6 +387,11 @@
set as deprecated. Default option for platforms that do not support TF-M
is :kconfig:option:`CONFIG_BT_MESH_USES_MBEDTLS_PSA`.
+* Mesh explicitly depends on the Secure Storage subsystem if storing into
+ non-volatile memory (:kconfig:option:`CONFIG_BT_SETTINGS`) is enabled and
+ Mbed TLS library (:kconfig:option:`CONFIG_BT_MESH_USES_MBEDTLS_PSA`) is used.
+ Applications should be built with :kconfig:option:`CONFIG_SECURE_STORAGE` enabled.
+
Bluetooth Audio
===============
