# OpenZFS zfs-2.2.10

- Product: OpenZFS (https://whatsnew.fyi/product/openzfs)
- Vendor: OpenZFS
- Date: 2026-06-12
- Version: zfs-2.2.10
- Original notes: https://github.com/openzfs/zfs/releases/tag/zfs-2.2.10
- Permalink: https://whatsnew.fyi/product/openzfs/releases/zfs-2.2.10
- Labels: Platforms: Linux

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **fixed** — Rename several printf attributes declarations to __printf__
- **fixed** — Fix uninitialized variable warning in zil_parse()
- **changed** — pam: use open fd instead of path
- **changed** — Extend dataset zfs_ioc_set_prop() secpolicy
- **fixed** — Fix uninitialized variable warning in vdev_prop_get()
- **fixed** — Fix the integer type in zfs_ioc_userspace_many()
- **security** — Add additional verification of size fields and strings
- **removed** — Remove /etc/sudoers.d/zfs
- **fixed** — sharenfs: Check for invalid characters
- **security** — nvpair: Check for un-terminated strings in packed nvlist
- **fixed** — draid: fix cksum errors after rebuild with degraded disks
- **changed** — draid: allow seq resilver reads from degraded vdevs
- **fixed** — draid: fix import failure after disks replacements
- **fixed** — draid: fix data corruption after disk clear
- **fixed** — Fix available space accounting for special/dedup
- **fixed** — nvpair: chase FreeBSD xdrproc_t definition
- **changed** — Linux 6.19: replace i_state access with inode_state_read_once()
- **changed** — Fix a declaration position of the nth_page
- **changed** — linux/atomic: fill out API for atomic pointer ops
- **fixed** — Fix nfs_truncate_shares without /etc/exports.d

###### Supported Platforms
- **Linux**: compatible with 4.18 - 6.17 kernels
- **FreeBSD**: compatible with releases starting from 13.3+, 14.0+

###### Changes
- Rename several printf attributes declarations to \_\_printf\_\_ #18095
- Fix uninitialized variable warning in zil_parse() #18633
- pam: use open fd instead of path #18618
- Extend dataset zfs_ioc_set_prop() secpolicy #18617
- Fix uninitialized variable warning in vdev_prop_get() #18616
- Fix the integer type in zfs_ioc_userspace_many() #18615
- Add additional verification of size fields and strings (#18623) #18623
- Remove /etc/sudoers.d/zfs #18626
- sharenfs: Check for invalid characters #18613
- nvpair: Check for un-terminated strings in packed nvlist #18604
- CI: Add alternative URLs for CentOS stream #18628
- CI: Increase default RCU stall timeout on Linux #18624
- CI: Update CodeQL actions to v4 #18629
- CI: Re-enable CodeQL workflows on push #18627
- draid: fix cksum errors after rebuild with degraded disks #18414
- draid: allow seq resilver reads from degraded vdevs #18405
- draid: fix import failure after disks replacements #18380
- draid: fix data corruption after disk clear #18286 #18294
- test/draid: fix error return #17551
- CI: add concurrency support to zfs-arm #18608
- CI: apt-get update before purging host packages #18607 #18609
- CI: skip smatch, zloop, and zfs-arm for documentation-only changes #18601
- CI: Lustre 6.16 kernel compatibility fix (#18602)
- CI: Update checkstyle checkout action to v6 #18600
- .github: update workflows README #18590
- CI: run full CI when a workflow YAML changes #18577
- CI: skip full CI runs on push events #18571
- CI: enable FreeBSD 15.0-RELEASE in matrix #18561
- CI: Build custom branch from zfs-qemu-packages #18569
- ZTS: zfs_unshare_006_pos.ksh enable usershares #18547
- CI: Fix qemu-guest-agent systemd enable #18547
- CI: Add Ubuntu 26.04 builder #18547
- CI: remove FreeBSD 13.5 (EOL April 30, 2026) #18553
- CI: Allow testing with a newer GCC on ARM builder #18540
- CI: Remove deprecated Fedora 42 #18545
- CI: Fix 99.99 META version #18526 #18531
- CI: FreeBSD 15.1 STABLE #18524
- CI: skip qemu matrix for documentation-only pull requests #18518
- CI: FreeBSD 15.1 PRERELEASE (#18490)
- CI/GCC: Add Fedora 44, fix build errors and threadsappend #18478
- CI: curl fallback, print killed tests, FreeBSD URL #18460
- CI: Add more debugging to qemu-1-setup.sh #18441
- CI: tolerate missing artifacts #18438
- CI: Do not set scheduler in qemu-1-setup.sh #18437
- README: add FreeBSD 14.4-RELEASE alongside 15.0 #18304
- README: describe specific kernels/distros we target #18295
- Fix capitalization typo in README.md #17889
- CI: Disable ZIP file artifacts, update versions #18411
- Fix available space accounting for special/dedup #18222 #18367
- Linux 6.18: convert ida_simple_* calls
- Linux 6.18: replace write_cache_pages()
- Linux 6.19: replace i_state access with inode_state_read_once() #18053
- Fix a declaration position of the nth_page. #18034
- Linux 6.18: replace nth_page()
- sha256_generic: make internal functions a little more private
- CI: Fix Ubuntu 22.01 rsend failures #18032
- nvpair: chase FreeBSD xdrproc_t definition #18154
- Linux 6.18: block_device_operations->getgeo takes struct gendisk*
- linux/atomic: fill out API for atomic pointer ops #17580
- Linux 6.18: namespace type moved to ns_common
- CI: Free 35GB of unused files on the runner #18400
- ci: update FreeBSD CI images from 14.3 to 14.4 #18362
- [2.2.10-only] CI: Fix ARM builder path
- CI: Add ARM builder #18343
- CI: Support repository variable override for ZTS OS selection #18342
- CI: Remove deprecated Fedora 41 #18261
- CI: Test build Lustre against ZFS #18161
- CI: Fix qemu-1-setup failure, remove debug stuff #18166
- CI: Add Alpine Linux 3.23 runner to the pipeline (#18087)
- CI: Test 2.4.x in qemu-test-repo-vm.sh, quick mode #18070
- CI: Use Ubuntu mirrors instead of azure (#

_[Truncated at 4000 characters — full notes: https://github.com/openzfs/zfs/releases/tag/zfs-2.2.10]_