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⇱ GNU Coreutils 9.9 Brings Numerous Fixes - Phoronix

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GNU Coreutils 9.9 Brings Numerous Fixes

Written by Michael Larabel in GNU on 10 November 2025 at 02:07 PM EST. 59 Comments
Following yesterday's release of Rust Coreutils 0.4, GNU Coreutils 9.9 is now available as the latest update to this set of core utilities common to Linux systems and other platforms.

GNU Coreutils 9.9 is primarily about shipping various bug fixes compared to Coreutils 9.8 and prior. Among the fixes were addressing a performance issue with the cp command for transparently compressed files with at least the OpenZFS file-system.

There are also other minor fixes, numfmt now accepts the --unit-separator=SEP option, better handling for different utilities when hitting different errors, install / sort / split now using posix_spawn(), and a few build updates.

Downloads and more details on today's GNU Coreutils 9.9 release via the mailing list announcement.

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.