Update Pipelines macos-latest label migration date

Author: Steve Danielson

docs/pipelines/agents/hosted.md

@@ -3,7 +3,7 @@ title: Microsoft-hosted agents for Azure Pipelines
 description: Learn about using the Microsoft-hosted agents provided in Azure Pipelines
 ms.topic: conceptual
 ms.assetid: D17E9C01-8026-41E8-B44A-AB17EDE4AFBD
-ms.date: 07/21/2025
+ms.date: 08/01/2025
 monikerRange: '<= azure-devops'
 ---
 
@@ -85,7 +85,7 @@ You can see the installed software for each macOS hosted agent by choosing the *
 #### macOS images updates
 
 * The macOS 15 Sequoia hosted agent image is in GA.
- * The `macOS-latest` label still refers to `macOS-14`. The change to `macOS-15` will be made in the future and this page will be updated at that time.
+ * The `macOS-latest` label still refers to `macOS-14`. The migration of `macos-latest` to refer to `macOS-15` will begin August 4, 2025, with a planned completion date of August 30, 2025. For more information, see [[macOS] macos-latest YAML-label will use macos-15 in August 2025](https://github.com/actions/runner-images/issues/12520).
 * [[macOS] Xcode 15.4 will be removed from macOS15 images on May 29th, 2025](https://github.com/actions/runner-images/issues/12195)
 * [The macOS-15 Sequoia image is available in preview](https://devblogs.microsoft.com/devops/upcoming-updates-for-azure-pipelines-agents-images/#mac-os)
 * Apple silicon (ARM64) support for macOS image - for more information on joining the preview, see [Apple silicon (ARM64) support for macOS image](https://devblogs.microsoft.com/devops/upcoming-updates-for-azure-pipelines-agents-images/#mac-os).