Add a changelog

Signed-off-by: SungJin1212 <[email protected]>

Author: SungJin1212

CHANGELOG.md

@@ -23,6 +23,7 @@
 * [FEATURE] Querier: Support for configuring query optimizers and enabling XFunctions in the Thanos engine. #6873
 * [FEATURE] Query Frontend: Add support /api/v1/format_query API for formatting queries. #6893
 * [ENHANCEMENT] Ingester: Add `cortex_ingester_tsdb_wal_replay_unknown_refs_total` and `cortex_ingester_tsdb_wbl_replay_unknown_refs_total` metrics to track unknown series references during wal/wbl replaying. #6945
+* [ENHANCEMENT] Distributor: Introduce a Protobuf model for Prometheus Remote Write 2.0 and a pool to improve performance. #6917
 * [ENHANCEMENT] Ruler: Emit an error message when the rule synchronization fails. #6902
 * [ENHANCEMENT] Querier: Support snappy and zstd response compression for `-querier.response-compression` flag. #6848
 * [ENHANCEMENT] Tenant Federation: Add a # of query result limit logic when the `-tenant-federation.regex-matcher-enabled` is enabled. #6845