RAIDZ Expansion (#15022): Add new devices to an existing RAIDZ pool, increasing storage capacity without downtime.
Fast Dedup (#15896): A major performance upgrade to the original OpenZFS deduplication functionality.
Direct IO (#10018): Allows bypassing the ARC for reads/writes, improving performance in scenarios like NVMe devices where caching may hinder efficiency.
JSON (#16217): Optional JSON output for the most used commands.
Long names (#15921): Support for file and directory names up to 1023 characters.
Bug Fixes: A series of critical bug fixes addressing issues reported in previous versions.
Numerous performance improvements throughout the code base.