The latest release of meta/rocksdb is v11.12. RocksDB is a C++ library that is embedded in applications or database servers to store key-value data quickly and keep it persistently. The provided information lists no items changed in v11.12, so the specific changes in this release cannot be confirmed. The verifiable sources are the meta/rocksdb repository and its description.
RocksDB is developed and maintained by the Facebook Database Engineering Team and was built on the initial work on LevelDB. The LSM structure is a storage design that writes data and then merges it into sorted files. The README explains that RocksDB is used as a core component of fast key-value servers and is especially well suited to flash drive storage. It also states that the LSM design offers a compromise between WAF, RAF and SAF, and that multi-threaded compaction is supported, making it suitable for storing multiple terabytes of data in a single database.
However, the provided facts include neither a change list for v11.12 nor performance benchmark results. Therefore, it is not possible to judge what this release improved over previous versions or what its actual performance is like. A GPL-2.0 license is stated, but the provided information alone is not enough to explain the conditions per distribution method in more detail. The evaluation of this version is limited to the range where the change history and performance data can be confirmed.