diff --git a/HISTORY.md b/HISTORY.md
index 622abe632..0e5591977 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -36,6 +36,7 @@
 * Batch blob read requests for `DB::MultiGet` using `MultiRead`.
 * Add support for fallback to local compaction, the user can return `CompactionServiceJobStatus::kUseLocal` to instruct RocksDB to run the compaction locally instead of waiting for the remote compaction result.
 * Add built-in rate limiter's implementation of `RateLimiter::GetTotalPendingRequest(int64_t* total_pending_requests, const Env::IOPriority pri)` for the total number of requests that are pending for bytes in the rate limiter.
+* Charge memory usage during data buffering, from which training samples are gathered for dictionary compression, to block cache. Unbuffering data can now be triggered if the block cache becomes full and `strict_capacity_limit=true` for the block cache, in addition to existing conditions that can trigger unbuffering.
 
 ### Public API change
 * Remove obsolete implementation details FullKey and ParseFullKey from public API