• RocksDB has been bumped to v5.18.3, which fixes a dead-lock occuring in RocksDB at scale when a compaction task is ran under heavy disk writes (ie. disk flushes). This dead-lock was causing Sonic to stop responding to any command issued for the frozen collection. This dead-lock was due to a bug in RocksDB internals (not originating from Sonic itself) [@baptistejamin, 19c4a10].
• Reworked the FLUSHB command internals, which now use the atomic delete_range() operation provided by RocksDB v5.18 [@valeriansaliou, 660f8b7].
• Added the LANG(<locale>) command modifier for QUERY and PUSH, that lets a Sonic Channel client force a text locale (instead of letting the lexer system guess the text language) [@valeriansaliou, #75].
• The FST word lookup system, used by the SUGGEST command, now support all scripts via a restricted Unicode range forward scan [@valeriansaliou, #64].