chore: add migration guide for AGS 2025.4 release

rbs1518 · rbs1518 · commit 55ca69d155c2 · 2025-06-04T10:20:30.000+07:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,7 @@
 <a name="v0.73.0"></a>
 ## [v0.73.0]
+### REMOVED SERVICE APIS
+The Matchmaking (V1), Sessionbrowser, and Sessionhistory APIs have been removed in this release.
 ### fix
 - **test:** use create test user endpoint for integration test
 - **:** delete iam client after csm test
diff --git a/docs/migration-guides/migration-guide-v0.72-to-v0.73.md b/docs/migration-guides/migration-guide-v0.72-to-v0.73.md
@@ -0,0 +1,11 @@
+<a name="v0.73.0"></a>
+## [v0.73.0] - 2025-05-02
+
+### REMOVED SERVICE APIS
+The Matchmaking (V1), Sessionbrowser, and Sessionhistory APIs have been removed in this release.
+
+### BREAKING CHANGE
+
+### IAM
+
+- All endpoints under `AccountIdenfifierTag` operation moved to `AccountIdentifierTag`.
