Create changelog for v1.22.0 release

Co-authored-by: hemarina <104857065+hemarina@users.noreply.github.com>

Author: Copilot

cli/azd/CHANGELOG.md

@@ -1,15 +1,21 @@
 # Release History
 
-## 1.22.0-beta.1 (Unreleased)
+## 1.22.0 (2025-12-01)
 
 ### Features Added
 
-### Breaking Changes
+- [[#6256]](https://github.com/Azure/azure-dev/pull/6256) Reduce provisioning progress display polling interval from 10s to 3s for more responsive status updates.
 
 ### Bugs Fixed
 
+- [[#6277]](https://github.com/Azure/azure-dev/pull/6277) Fix hooks not running in CI/CD scenarios when `.azure` directory does not exist.
+- [[#6255]](https://github.com/Azure/azure-dev/pull/6255) Fix Container Apps deployment error when using revision-based deployments.
+
 ### Other Changes
 
+- [[#6247]](https://github.com/Azure/azure-dev/pull/6247) Update Bicep CLI to v0.39.26.
+- [[#6270]](https://github.com/Azure/azure-dev/pull/6270) Rename Azure AI Foundry to Microsoft Foundry.
+
 ## 1.21.3 (2025-11-14)
 
 ### Bugs Fixed

cli/version.txt

@@ -1 +1 @@
-1.22.0-beta.1
+1.22.0