OpenZFS 2.4 Released with Linux 6.18 LTS Support, Quotas, Uncached IO, and More
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OpenZFS 2.4 Released with Linux 6.18 LTS Support, Quotas, Uncached IO, and More

Written By
MN
Marcus Nestor
Jan 7, 2026

Supporting kernels from Linux 4.18 up to the latest Linux 6.18 LTS, OpenZFS 2.4 introduces many exciting changes, such as support for setting default user/group/project quotas, direct IO fallback to a light-weight uncached IO when unaligned, and a new algorithm designed to reduce vdev fragmentation.
MN

Marcus Nestor

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