openzfs/zfs zfs-2.3.0 on GitHub

We are excited to announce the release of OpenZFS 2.3.0.

Key Features in OpenZFS 2.3.0:

RAIDZ Expansion (#15022): Add new devices to an existing RAIDZ pool, increasing storage capacity without downtime.
Fast Dedup (#15896): A major performance upgrade to the original OpenZFS deduplication functionality.
Direct IO (#10018): Allows bypassing the ARC for reads/writes, improving performance in scenarios like NVMe devices where caching may hinder efficiency.
JSON (#16217): Optional JSON output for the most used commands.
Long names (#15921): Support for file and directory names up to 1023 characters.
Bug Fixes: A series of critical bug fixes addressing issues reported in previous versions.
Numerous performance improvements throughout the code base.
Supported Platforms:
- Linux kernels 4.18 - 6.12,
- FreeBSD releases 13.3, 14.0 - 14.2.

Additional Information:

Documentation - OpenZFS documentation for Linux and FreeBSD.

Change log - Complete v2.2.0 - v2.3.0 change log

Thank you to all 134 contributors who participated in this release cycle

[behlendorf1@pip zfs]$ git shortlog -s zfs-2.2.0..zfs-2.3.0
   4  Ahelenia Ziemiańska
   2  Akash B
  12  Alan Somers
   1  Alek Pinchuk
 144  Alexander Motin
   6  Allan Jude
   1  Alphan Yılmaz
  26  Ameer Hamza
   2  Andrea Righi
   2  Andrew Innes
   2  Andrew Turner
   1  Andrew Walker
   1  Andy Fiddaman
   2  Benda Xu
   1  Benjamin Sherman
   1  Bojan Novković
   8  Brian Atkinson
  61  Brian Behlendorf
   4  Brooks Davis
   2  Cameron Harr
   1  ChenHao Lu
   1  Chris Davidson
   1  Chris Peredun
   9  Chunwei Chen
  14  Coleman Kane
   1  Colin Percival
   3  Dag-Erling Smørgrav
   2  Daniel Berlin
   1  Daniel Perry
   1  Dennis R. Friedrichsen
   1  Derek Schrock
   1  Dex Wood
   3  Dimitry Andric
  13  Don Brady
   4  Edmund Nadolski
   2  Fabian-Gruenbichler
   4  George Amanakis
   5  George Melikov
   3  George Wilson
   6  Gionatan Danti
   1  Gleb Smirnoff
   1  Gordon Tetlow
   1  Ilkka Sovanto
   1  Ivan Volosyuk
   1  JKDingwall
   1  James Reilly
   1  Jaron Kent-Dobias
   2  Jason King
   2  Jason Lee
   1  Jessica Clarke
   4  Jitendra Patidar
   1  John Wren Kennedy
   1  Jose Luis Duran
   1  José Luis Salvador Rufo
   1  Justin Gottula
   4  Kay Pedersen
   1  Kent Ross
   1  Kevin Greene
   1  Kevin Jin
   1  Lalufu
   1  Laura Hild
   1  Mariusz Zaborski
  17  Mark Johnston
   3  Mart Frauenlob
   9  Martin Matuška
   1  Martin Wagner
   4  Mateusz Guzik
   7  Mateusz Piotrowski
   1  Matthew Ahrens
   1  Matthew Heller
   1  Mauricio Faria de Oliveira
   1  Maxim Filimonov
   2  MigeljanImeri
   1  Olivier Certner
  14  Paul Dagnelie
   6  Pavel Snajdr
   6  Pawel Jakub Dawidek
   1  Peter Doherty
   1  Piotr P. Stefaniak
   1  Poscat
   1  Qiuhao Chen
   1  Quartz
   1  Rafael Kitover
  12  Rich Ercolani
   3  Richard Kojedzinszky
   1  Richard Yao
   3  Rick Macklem
 370  Rob Norris
   6  Robert Evans
   1  Ryan
   1  Ryan Lahfa
   1  Sam Atkinson
   2  Sam James
   2  Sanjeev Bagewadi
   1  Sebastian Wuerl
   4  Serapheim Dimitropoulos
   1  Seth Hoffert
   2  Seth Troisi
   1  Shawn Bayern
  14  Shengqi Chen
   1  Sietse
   1  Stefan Lendl
   1  Steve Mokris
   5  Stoiko Ivanov
   2  Theera K.
   1  Thomas Bertschinger
  30  Tino Reichardt
   1  Todd Seidelmann
   1  Tomohiro Kusumi
  31  Tony Hutter
   5  Toomas Soome
  35  Umer Saleem
   2  Vaibhav Bhanawat
   1  Val Packett
   1  Volker Mauel
   2  WHR
   1  Warner Losh
   1  Wojciech Małota-Wójcik
   1  XDTG
   2  Youzhong Yang
   3  Yuri Pankov
   2  Yuxin Wang
   1  Zach Dykstra
   1  Zhao Yongming
   1  Zhenlei Huang
   1  glibg10b
   1  gofaster
   1  kotauskas
   1  n0-1
   1  ofthesun9
   2  omni
   2  rilysh
   1  tleydxdy
   3  tstabrawa

Module option changes - See the module parameters documentation for the complete list of the options and what they control.
New module options
Removed module options
- zfetch_array_rd_sz
Modified module options