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⇱ OpenZFS 2.4-rc2 Released With Linux 6.17 Support, Bug Fixes - Phoronix

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OpenZFS 2.4-rc2 Released With Linux 6.17 Support, Bug Fixes

Written by Michael Larabel in Linux Storage on 1 October 2025 at 08:00 AM EDT. 28 Comments
OpenZFS 2.4-rc2 was released on Tuesday as the latest stepping stone toward the big OpenZFS 2.4 feature release.

OpenZFS 2.4-rc2 brings compatibility with the newest Linux 6.17 kernel release, up from Linux 6.16 previously while still supporting back to the Linux 4.18 kernel series. OpenZFS 2.4 also supports FreeBSD 13.3 and newer.

OpenZFS 2.4-rc2 builds off earlier v2.4 features including quota improvements, uncached I/O, better encryption performance by using AVX2, multiple gang block improvements, dedup optimizations, and a variety of other bug fixes and enhancements.

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Downloads and more details on the OpenZFS 2.4-rc2 test release via GitHub.

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.