Add release note

seunghun1ee · Alex-Welsh · commit e2eb31266d2f · 2025-08-20T11:16:47.000+01:00
diff --git a/releasenotes/notes/use-upstream-magnum-86854beee69151f5.yaml b/releasenotes/notes/use-upstream-magnum-86854beee69151f5.yaml
@@ -0,0 +1,8 @@
+---
+features:
+  - |
+    Use upstream source of Magnum for Kolla container image build.
+    The StackHPC downstream Magnum repository was for keeping Heat driver
+    support.
+    As Heat support was deprecated, there's no need to build Magnum from
+    downstream source.
