Add new 2501 Hub hotfix

Author: sethmanheim

azure-stack/operator/TOC.yml

@@ -16,6 +16,10 @@
       items:
       - name: Currently supported versions
         items:
+        - name: 2501
+          items:
+          - name: Hotfix 1.2501.1.40
+            href: hotfix-1-2501-1-40.md
         - name: 2408
           items:
           - name: Hotfix 1.2408.1.44

azure-stack/operator/hotfix-1-2501-1-40.md

@@ -0,0 +1,41 @@
+---
+title: Azure Stack Hub hotfix 1.2501.1.40
+description: Summary of Azure Stack Hub hotfix 1.2501.1.40
+author: sethmanheim
+ms.topic: article
+ms.date: 06/03/2025
+ms.author: sethm
+
+---
+
+# Azure Stack Hub hotfix 1.2501.1.40
+
+## Summary
+
+- Fixed various portal issues.
+- Added [March 11, 2025 KB KB5053603 security update for Windows Server 2022](https://support.microsoft.com/topic/march-11-2025-kb5053603-os-build-20348-3328-1f927b68-5c90-45d7-abd3-3c973873b8f8).
+
+<!-- ## Fixes rolled up from previous hotfix releases -->
+
+## Hotfix information
+
+To apply this hotfix, you must have version **1.2501.0.21** or later.
+
+> [!IMPORTANT]
+> As outlined in the release notes for the [2501 update](release-notes.md?view=azs-2501&preserve-view=true), make sure that you refer to the update activity checklist on running **Test-AzureStack** (with specified parameters), and resolve any operational issues that are found, including all warnings and failures. Also, review active alerts and resolve any that require action.
+
+## File information
+
+Download the following files. Then, follow the instructions in [Apply updates in Azure Stack](azure-stack-apply-updates.md) to apply this update.
+
+[Download the zip file now](https://azurestackhub.download.prss.microsoft.com/dbazure/download/MAS_ProdHotfix_1.2501.1.40/HotFix/AzS_Update_1.2501.1.40.zip).
+
+[Download the hotfix xml file now](https://azurestackhub.download.prss.microsoft.com/dbazure/download/MAS_ProdHotfix_1.2501.1.40/HotFix/metadata.xml).
+
+## More information
+
+[Azure Stack Hub update resources](azure-stack-updates.md)
+
+[Apply updates in Azure Stack](azure-stack-apply-updates.md)
+
+[Monitor updates in Azure Stack by using the privileged endpoint](azure-stack-monitor-update.md)