Sb/u13 notice page

pages/notices/upgrade-13.mdx

@@ -0,0 +1,22 @@
+---
+title: Upgrade 13 OPCM and incident response improvements
+description: Learn how to prepare for Isthmus upgrade breaking changes.
+lang: en-US
+content_type: guide
+topic: Isthmus-changes
+personas:
+  - chain-operator
+  - node-operator
+categories:
+  - security
+  - automated-pause
+  - protocol
+  - infrastructure
+is_imported_content: 'false'
+---
+
+import { Steps, Callout } from 'nextra/components'
+
+# Upgrade 13: OPCM and incident response improvements
+
+## What's included in Upgrade 13