Added BUG #3522 to the changelog.

framework/CHANGELOG.md

@@ -132,6 +132,7 @@ Yii Framework 2 Change Log
 - Bug #2848: Individual queries should be enclosed within parenthesis in a UNION query (qiangxue)
 - Bug #2862: Using `DbCache` while enabling schema caching may cause infinite loops (qiangxue)
 - Bug #3052: Fixed the issue that cache dependency data is not reused when `reusable` is set true (qiangxue)
+- Bug #3522: Fixed BaseFileHelper::normalizePath to allow a (.) for the current path.
 - Bug: Fixed `Call to a member function registerAssetFiles() on a non-object` in case of wrong `sourcePath` for an asset bundle (samdark)
 - Bug: Fixed incorrect event name for `yii\jui\Spinner` (samdark)
 - Bug: Json::encode() did not handle objects that implement JsonSerializable interface correctly (cebe)