4.5.8

Source: vastnfs-4.5.8.tar.xz

(released Jul 8, 2026)

  • Add Job-ID support for NFS operations.
  • Expand kernel/build compatibility and backports (Linux 6.18, 6.19, 7.0, SLED RPM builds, SLES 15/16 fallback behavior) and sync upstream to v6.12.57.
  • Add TLS support for the NFSv3 MOUNT connection and enable xprtsec policy for MOUNT by default on VAST servers.
  • Improve TLS and key handling by supporting kernel keyrings, validating TLS certificate fields in client matching, and redacting certificate serial values in mount options.
  • Add per-transport stats in driver and vastnfs-ctl.
  • Fix multiple NFSv4 delegation issues when using multipathing.
  • Fix ENOKEY race conditions in concurrent remoteports=dns mounts and ignore INADDR_ANY addresses from DNS replies.
  • Fix alternate server handling, including mountstats RPC accounting and an nfs_server_add_alt BUG_ON with alt_server sizing.
  • Restore the relmtime mount option after upstream sync fallout and fix additional NFS client edge cases (localports, setattr delegation, and in_dev reference handling).
  • Enable large folios by default from Linux 6.12 and RHEL 9.7
  • Better diagnostic messages if NFS server is unresponsive.
  • Set fallback source version to v4.0.41.
  • Multiple bug fixes.

4.5.7

Source: vastnfs-4.5.7.tar.xz

(released May 12, 2026)

  • build.sh: fixup for azurelinux
  • Further backports to improve the deadlock fix of nfs_lock_and_join_requests.
  • Sync fallback to v4.0.40.

4.5.6

Source: vastnfs-4.5.6.tar.xz

(released Apr 27, 2026)

  • Added expandable read-ahead, and enabled by default. Read-ahead starts at 128 KB default and grows to read_ahead_kb setting only after sequential IO. Can be turned off via kernel module parameter.
  • Backport upstream fix to a deadlock on rare cases (commit 8e5419d6542 "nfs: Add missing release on error in nfs_lock_and_join_requests()")

4.5.5

Source: vastnfs-4.5.5.tar.xz

(released Mar 11, 2026)

  • Fix a cleanup issue in umount under Linux kernels 6.16 and above that prevented driver reload.

4.5.4

Source: vastnfs-4.5.4.tar.xz

(released Feb 12, 2026)

  • For unsupported kernels, sync fallback logic to v4.0.39

4.5.3

Source: vastnfs-4.5.3.tar.xz

(released Feb 11, 2026)

  • Fix a build issue for systems with DOCA 3.2.1 and above, that prevented rpcrdma (NFS RDMA) from being loaded.

4.5.2

Source: vastnfs-4.5.2.tar.xz

(released Jan 26, 2026)

  • Trivial build fixes for newer kernels
  • NFS directory cache fixes
  • Fix performance regression from upstream related to directory listing
  • Fix for optlockflush and relmtime activation with NFSv4.x
  • Fix a crash on pnfs MDS=DS session trunking
  • Add the pconnect mount option (see documentation)
  • Enable localports_failover by default which localports is used
  • Implement localports failover during mount stage
  • vastnfs-ctl fixes for IO stats
  • For unsupported kernels, sync fallback logic to v4.0.38
  • Various tracing and debugability improvments
  • Documentation updates

4.5.1

Source: vastnfs-4.5.1.tar.xz

(released Oct 23, 2025)

  • Build script fix.

4.5.0

Source: vastnfs-4.5.0.tar.xz

(released Oct 23, 2025)

  • First release of 4.5.0, a rebase of the stack on Linux v6.6 LTS, bringing newer stack features from that kernel. See NFS over TLS.
  • If installing for the first time, see supported kernel versions.
  • Contains 4.0.36 source as build-time fallback that is triggered based on kernel version detection.
  • Older 4.0 tree will be maintained separately (see older changelog)

Document generated on 2026.07.23 16:39 for v4.5.9~prerelease-2-g0edc5d942, branch 4.5