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Bump required minimum kernel version to 5.10 and the recommended baseline to 5.14.

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The previous minimum required version 5.4 will be EOL on 2025-12.
Let's bump the required minimum kernel version to the next LTS release 5.10
(released on 2020-12-13, EOL on 2026-12, CIP support until 2031-01).

The new recommended baseline 5.14 is the version that CentOS 9 uses.
CentOS 9 will EOL on 2027-05.

See also #38608.
This commit is contained in:
Yu Watanabe
2026-01-13 10:21:04 +09:00
parent b6585c811a
commit 1aeba33d8f
2 changed files with 12 additions and 13 deletions
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README
+11 -12
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@@ -47,25 +47,24 @@ REQUIREMENTS:
≥ 5.3 for bounded loops in BPF program, keyring namespacing,
and nexthop support
≥ 5.4 for pidfd and signed Verity images
⛔ Kernel versions below 5.4 ("minimum baseline") are not supported at all,
and are missing required functionality as listed above.
Linux kernel ≥ 5.6 for getrandom() GRND_INSECURE
≥ 5.6 for getrandom() GRND_INSECURE
≥ 5.7 for CLONE_INTO_CGROUP, cgroup2fs memory_recursiveprot option,
BPF links and the BPF LSM hook
≥ 5.8 for LOOP_CONFIGURE and STATX_ATTR_MOUNT_ROOT
≥ 5.9 for close_range()
⚠️ Kernel versions below 5.7 ("recommended baseline") have significant gaps
⛔ Kernel versions below 5.10 ("minimum baseline") are not supported at all,
and are missing required functionality as listed above.
Linux kernel ≥ 5.12 for idmapped mount
≥ 5.14 for cgroup.kill and quotactl_fd()
⚠️ Kernel versions below 5.14 ("recommended baseline") have significant gaps
in functionality and are not recommended for use with this version
of systemd. Taint flag 'old-kernel' will be set. systemd will most likely
still function, but upstream support and testing are limited.
Linux kernel ≥ 5.8 for LOOP_CONFIGURE and STATX_ATTR_MOUNT_ROOT
≥ 5.9 for close_range()
≥ 5.12 for idmapped mount
≥ 5.14 for cgroup.kill
≥ 5.14 for quotactl_fd()
≥ 6.3 for MFD_EXEC/MFD_NOEXEC_SEAL and tmpfs noswap option
Linux kernel ≥ 6.3 for MFD_EXEC/MFD_NOEXEC_SEAL and tmpfs noswap option
≥ 6.5 for name_to_handle_at() AT_HANDLE_FID, SO_PEERPIDFD/SO_PASSPIDFD,
and MOVE_MOUNT_BENEATH
≥ 6.6 for quota support on tmpfs