doc: migration: 4.2: Add note on HWMv1

nordicjm · danieldegrasse · commit 90d7d2c6ff61 · 2025-07-11T13:44:47.000-05:00
Adds a note that HWMv1 support has now been dropped

Signed-off-by: Jamie McCrae &lt;jamie.mccrae@nordicsemi.no&gt;
diff --git a/doc/releases/migration-guide-4.2.rst b/doc/releases/migration-guide-4.2.rst
@@ -23,6 +23,9 @@ the :ref:`release notes<zephyr_4.2>`.
 Build System
 ************
 
+* HWMv1 support has been removed, any out-of-tree boards or SoCs in HWMv1 format must be migrated
+  to :ref:`HWMv2 <hw_model_v2>` to work with Zephyr v4.2 onwards.
+
 Kernel
 ******
 
