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OpenZFS 2.4.3

June 13th, 2026

“OpenZFS 2.4.3 is out today as the newest stable point release to this open-source ZFS file-system implementation as well as point releases for the OpenZFS 2.3 and 2.2 series too.

One month after OpenZFS 2.4.2, OpenZFS 2.4.3 is now available with additional fixes. On the Linux side the kernel support still extends up through the Linux 7.0 stable kernel even with Linux v7.1 expected for release this coming Sunday. Hopefully another OpenZFS point release will be out shortly thereafter with blessed Linux 7.1 kernel support.

OpenZFS 2.4.3 adds an encryption key check for block cloning in ZVOL, some FreeBSD-specific work like being able to build the kernel module with sanitizers, fixing some double free conditions, fixing a possible panic, some Linux compatibility updates, a number of continuous integration (CI) updates, and various other minor fixes throughout.

Details on the OpenZFS 2.4.3 changes in full and downloads via GitHub.

In addition to the OpenZFS 2.4.3 point release, OpenZFS 2.3.8 and OpenZFS 2.2.10 are available with many of the same bug fixes back-ported to those prior series plus other relevant fixes.”

https://www.phoronix.com/news/OpenZFS-2.4.3-Released
OpenZFS 2.4.3 is out!!!

June 12th, 2026

Along with zfs-2.2.10 and zfs-2.3.8.
FreeBSD 15.1 is out !!!

June 12th, 2026

The official release announcement will be on June 16th.

https://download.freebsd.org/releases/ISO-IMAGES/15.1
Kris Moore – TrueNAS CTO Interview

June 11th, 2026

unit/namecheck

June 11th, 2026

Unit tests are deterministic tests that complement the ZTS testing infrastructure. They were first implemented by robn in test_zap.c to cover the ZAP API including microzap and fatzap.

My commit introduces a new namecheck validity testing framework for zfs pools, datasets, snapshots etc. It covers the full namecheck.c functions.

To run the test, execute make unit T=namecheck

			
> make unit T=namecheck
  UNITTEST tests/unit/test_namecheck
Running test suite with seed 0x5842ef3e...
namecheck.pool                       [ OK    ] [ 0.00000954 / 0.00000873 CPU ]
namecheck.dataset                    [ OK    ] [ 0.00001064 / 0.00000984 CPU ]
namecheck.snapshot                   [ OK    ] [ 0.00000589 / 0.00000590 CPU ]
namecheck.bookmark                   [ OK    ] [ 0.00000654 / 0.00000605 CPU ]
namecheck.component                  [ OK    ] [ 0.00000508 / 0.00000508 CPU ]
namecheck.permset                    [ OK    ] [ 0.00000608 / 0.00000561 CPU ]
namecheck.mountpoint                 [ OK    ] [ 0.00000337 / 0.00000329 CPU ]
namecheck.depth                      [ OK    ] [ 0.00000204 / 0.00000159 CPU ]
8 of 8 (100%) tests successful, 0 (0%) test skipped.

		

https://github.com/chrislongros/zfs/commit/7e054b2e7ea80c7c838f7fd44b7d517eea5c9d18

fsrs4anki helper – filtered deck bug

June 11th, 2026

If a card is in a filtered deck (odid != 0), the post-sync reschedule only updates its odue and the card stays in the filtered deck — but it still updates mod/usn. The end result is that reviews on other devices get overwritten.

https://github.com/open-spaced-repetition/fsrs4anki-helper/commit/29208f220f21ff994c199712a6aaac47636773bf
One step away from OpenZFS 2.4.3

June 11th, 2026

The patch set with 64 commits has been created!

https://github.com/openzfs/zfs/pull/18651#event-26637090181
June 8th, 2026
FreeBSD June ZFS vendor import

June 8th, 2026

Happy to see my ZFS commits get upstream to FreeBSD 🙂

https://cgit.freebsd.org/src/log/?h=vendor/openzfs/master&showmsg=1
StorJ price adjustment

June 7th, 2026

From July 1 StorJ will introduce a minimum 50 dollar per month payment irrespective from storage usage !

As of now I run weekly S3 backups with restic from my TrueNAS to StroJ. I may need to migrate to some other solution e.g. Hetzner ….

https://forum.storj.io/t/important-update-upcoming-storj-customer-pricing-adjustments-and-sno-impact/31827
FreeBSD released another Release Candidate for 15.1

June 7th, 2026

That means the official 15.1 announcement will be delayed for one week.

https://www.freebsd.org/releases/15.1R/schedule

unit/zap: uint64 keys

June 6th, 2026

robn introduced a test suite for the ZFS Attribute Processor (ZAP) with this commit: https://github.com/robn/zfs/commit/1d601eb83b1b849edba047feae5137f0adb93ee2

Since then several API functions of ZAP were implemented as unit tests. With my new commit I introduce a uint64 keys test that provides coverage for binary uint64-array keys that are also used by the dedup table (DDT) and the block reference table (BRT).

The test runs dnode operations including: add, lookup, length, lookup_length, update and remove as they are implemented in module/zfs/zap.c

To build and run the test use the instructions here: https://github.com/openzfs/zfs/blob/master/tests/unit/README.md

The results:

			
> make unit
  UNITTEST tests/unit/test_zap
Running test suite with seed 0x8f27c767...
zap.mock_microzap_sanity             [ OK    ] [ 0.00001072 / 0.00001014 CPU ]
zap.mock_fatzap_sanity               [ OK    ] [ 0.00002379 / 0.00002299 CPU ]
zap.zap_basic
  type=micro                         [ OK    ] [ 0.00002169 / 0.00002172 CPU ]
  type=fat                           [ OK    ] [ 0.00002119 / 0.00002120 CPU ]
zap.zap_add
  type=micro                         [ OK    ] [ 0.00000964 / 0.00000965 CPU ]
  type=fat                           [ OK    ] [ 0.00002727 / 0.00002665 CPU ]
zap.zap_update
  type=micro                         [ OK    ] [ 0.00001184 / 0.00001185 CPU ]
  type=fat                           [ OK    ] [ 0.00001811 / 0.00001806 CPU ]
zap.zap_remove
  type=micro                         [ OK    ] [ 0.00001190 / 0.00001192 CPU ]
  type=fat                           [ OK    ] [ 0.00002998 / 0.00002978 CPU ]
zap.zap_count
  type=micro                         [ OK    ] [ 0.00001882 / 0.00001843 CPU ]
  type=fat                           [ OK    ] [ 0.00001707 / 0.00001706 CPU ]
zap.zap_contains
  type=micro                         [ OK    ] [ 0.00001400 / 0.00001359 CPU ]
  type=fat                           [ OK    ] [ 0.00001650 / 0.00001651 CPU ]
zap.zap_length
  type=micro                         [ OK    ] [ 0.00001039 / 0.00001038 CPU ]
  type=fat                           [ OK    ] [ 0.00002450 / 0.00002413 CPU ]
zap.zap_increment
  type=micro                         [ OK    ] [ 0.00001459 / 0.00001457 CPU ]
  type=fat                           [ OK    ] [ 0.00002773 / 0.00002737 CPU ]
zap.zap_int
  type=micro                         [ OK    ] [ 0.00002339 / 0.00002288 CPU ]
  type=fat                           [ OK    ] [ 0.00003203 / 0.00003164 CPU ]
zap.zap_int_keys
  type=micro                         [ OK    ] [ 0.00001585 / 0.00001579 CPU ]
  type=fat                           [ OK    ] [ 0.00004489 / 0.00004479 CPU ]
zap.microzap_stats                   [ OK    ] [ 0.00001210 / 0.00001212 CPU ]
zap.fatzap_stats                     [ OK    ] [ 0.00001901 / 0.00001899 CPU ]
zap.uint64_keys                      [ OK    ] [ 0.00001770 / 0.00001764 CPU ]
zap.cursor
  type=micro                         [ OK    ] [ 0.00002167 / 0.00002166 CPU ]
  type=fat                           [ OK    ] [ 0.00003274 / 0.00003226 CPU ]
zap.cursor_serialize
  type=micro                         [ OK    ] [ 0.00002177 / 0.00002173 CPU ]
  type=fat                           [ OK    ] [ 0.00002936 / 0.00002924 CPU ]
zap.cursor_release_unused
  type=micro                         [ OK    ] [ 0.00001119 / 0.00001115 CPU ]
  type=fat                           [ OK    ] [ 0.00001867 / 0.00001856 CPU ]
zap.cursor_release_advance
  type=micro                         [ OK    ] [ 0.00001058 / 0.00001056 CPU ]
  type=fat                           [ OK    ] [ 0.00001544 / 0.00001544 CPU ]
zap.cursor_release_empty
  type=micro                         [ OK    ] [ 0.00000918 / 0.00000907 CPU ]
  type=fat                           [ OK    ] [ 0.00001564 / 0.00001563 CPU ]
zap.cursor_release_one
  type=micro                         [ OK    ] [ 0.00001696 / 0.00001662 CPU ]
  type=fat                           [ OK    ] [ 0.00001843 / 0.00001841 CPU ]
zap.zap_value_search
  type=micro                         [ OK    ] [ 0.00001555 / 0.00001551 CPU ]
  type=fat                           [ OK    ] [ 0.00002377 / 0.00002379 CPU ]
zap.zap_value_search_mask
  type=micro                         [ OK    ] [ 0.00001525 / 0.00001524 CPU ]
  type=fat                           [ OK    ] [ 0.00002293 / 0.00002288 CPU ]
41 of 41 (100%) tests successful, 0 (0%) test skipped.

		

My 3-2-1 backup topology

June 6th, 2026
1. My Samsung Galaxy A55 smartphone as well my Arch Linux Desktop get synced with Synology Drive to my Synology DS425+ NAS.
2. Then a HyperBackup task runs every night to sync the contents to my Aoostar WTR Max TrueNAS Server.
3. Finally a dedicated StorJ S3 storage backup task runs to an off-site encrypted destination.
Grafana TrueNAS server metrics

June 6th, 2026

Grafana coupled with Prometheus as a docker container that provides CPU, RAM, network bandwidth metrics and much more.

Over 1 billion downloads in DockerHub!!

https://hub.docker.com/r/grafana/grafana

https://github.com/grafana/grafana
n8n CI failure automation

June 4th, 2026

This workflow automates the detection of OpenZFS CI failure detection via Gotify notifications !!