update changelog

Signed-off-by: Ben Ye <[email protected]>

CHANGELOG.md

@@ -41,6 +41,7 @@
 * [CHANGE] Disables TSDB isolation. #4825
 * [CHANGE] Drops support Prometheus 1.x rule format on configdb. #4826
 * [CHANGE] Removes `-ingester.stream-chunks-when-using-blocks` experimental flag and stream chunks by default when `querier.ingester-streaming` is enabled. #4864
+* [CHANGE] Store-gateway: Add user label to `cortex_bucket_store_blocks_loaded` metric. #4918
 * [ENHANCEMENT] AlertManager: Retrying AlertManager Get Requests (Get Alertmanager status, Get Alertmanager Receivers) on next replica on error #4840
 * [ENHANCEMENT] Querier/Ruler: Retry store-gateway in case of unexpected failure, instead of failing the query. #4532 #4839
 * [ENHANCEMENT] Ring: DoBatch prioritize 4xx errors when failing. #4783