Add new 2408 hotfix

Author: sethmanheim

azure-stack/operator/TOC.yml

@@ -22,6 +22,8 @@
             href: hotfix-1-2501-1-40.md
         - name: 2408
           items:
+          - name: Hotfix 1.2408.1.46
+            href: hotfix-1-2408-1-46.md
           - name: Hotfix 1.2408.1.44
             href: hotfix-1-2408-1-44.md            
           - name: Hotfix 1.2408.1.39

azure-stack/operator/hotfix-1-2408-1-46.md

@@ -0,0 +1,50 @@
+---
+title: Azure Stack Hub hotfix 1.2408.1.46
+description: Summary of Azure Stack Hub hotfix 1.2408.1.46
+author: sethmanheim
+ms.topic: article
+ms.date: 06/03/2025
+ms.author: sethm
+
+---
+
+# Azure Stack Hub hotfix 1.2408.1.46
+
+## Summary
+
+- Fixed an issue with scale units that led to health service errors.
+- Add nested virtualization support for ESv3 and DSv3 series VM sizes.
+- Restart health agent when it's in a stopped state.
+- Fixed an issue related to AD FS operations.
+
+## Fixes rolled up from previous hotfix releases
+
+- Fixed an issue in which NRP did not properly release an IP address on VMSS scale-in.
+- CVEs for 12B: updated only connected nodes, similar to previous hotfix.
+- Fixed an issue in which certain Windows fixes were not correctly enabled on hosts.
+- Various security and Windows fixes.
+- Fixed an issue with the deployment of large GPU VMs (either **Standard_NC48ads_A100_v4** or **Standard_NC48ads_L40S_v4**), in which the configured **HighMemoryMappedIoGapSize** exceeds the maximum 256 GB allowed by Hyper-V.
+- Fixed an issue in which the time to update the host node was significantly extended.
+
+## Hotfix information
+
+To apply this hotfix, you must have version **1.2408.0.19** or later.
+
+> [!IMPORTANT]
+> As outlined in the release notes for the [2408 update](release-notes.md?view=azs-2408&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_1.2408.1.46/HotFix/AzS_Update_1.2408.1.46.zip).
+
+[Download the hotfix xml file now](https://azurestackhub.download.prss.microsoft.com/dbazure/download/MAS_ProdHotfix_1.2408.1.46/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)