Update version and HISTORY.md for 11.4.3 release

HISTORY.md

@@ -1,6 +1,10 @@
 # Rocksdb Change Log
 > NOTE: Entries for next release do not go here. Follow instructions in `unreleased_history/README.txt`
 
+## 11.4.3 (06/24/2026)
+### Bug Fixes
+* Fixed a bug where closing a read-only DB instance could delete live SST files created by a concurrent read-write DB sharing the same directory.
+
 ## 11.4.2 (06/08/2026)
 ### Public API Changes
 * Added experimental read-scoped block buffer provider API, configured through `ReadOptions::read_scoped_block_buffer_provider`, for supported block-based table iterator scans and MultiScan reads to use caller-provided read-scoped storage for final data-block contents. When configured, supported provider-backed scan data-block reads bypass the data-block cache. The provider is ignored when mmap reads are enabled. RocksDB may still use ordinary temporary scratch for serialized block bytes, such as when a block may be compressed. Get and MultiGet do not currently provide API guarantees for this provider.

include/rocksdb/version.h

@@ -13,7 +13,7 @@
 // minor or major version number planned for release.
 #define ROCKSDB_MAJOR 11
 #define ROCKSDB_MINOR 4
-#define ROCKSDB_PATCH 2
+#define ROCKSDB_PATCH 3
 
 // Make it easy to do conditional compilation based on version checks, i.e.
 // #if ROCKSDB_VERSION_GE(4, 5, 6)

unreleased_history/bug_fixes/read_only_close_no_delete.md

@@ -1 +0,0 @@
-Fixed a bug where closing a read-only DB instance could delete live SST files created by a concurrent read-write DB sharing the same directory.