#Phoronix Phoronix * Articles & Reviews * News Archive * Forums * Premium Ad-Free * Contact * Popular Categories * Close * * Articles & Reviews * News Archive * Forums * Premium * Contact * Categories Computers Display Drivers Graphics Cards Linux Gaming Memory Motherboards Processors Software Storage Operating Systems Peripherals * ____________________ Search OpenZFS 2.4 Released With Faster Encryption Performance, Many Other Improvements Written by Michael Larabel in Linux Storage on 18 December 2025 at 08:02 PM EST. 30 Comments LINUX STORAGE OpenZFS 2.4 is out as stable in time for the holidays! The big OpenZFS 2.4 feature release is now available for FreeBSD and Linux systems to continue advancing the open-source ZFS file-system support. OpenZFS 2.4 delivers faster encryption performance for CPUs with AVX2, the new zfs rewrite command, support up through the latest Linux 6.18 stable kernel, support to set default user / group / project quotas, direct I/O falling back to a lightweight uncached I/O mode when dealing with unaligned writes, unified allocation throttling support, ZIL on special vdevs support, and more. OpenZFS logo The official OpenZFS 2.4 release features come down to: - Quotas: Allow setting default user/group/project quotas - Uncached IO: Direct IO fallback to a light-weight uncached IO when unaligned - Unified allocation throttling: A new algorithm designed to reduce vdev fragmentation - Better encryption performance using AVX2 for AES-GCM - Allow ZIL on special vdevs when available - Extend special_small_blocks to land ZVOL writes on special vdevs (#14876), and allow non-power of two values - Add zfs rewrite -P which preserves logical birth time when possible to minimize incremental stream size - Add -a|--all option which scrubs, trims, or initializes all imported pools - Add zpool scrub -S -E to scrub specific time ranges - Add zpool prefetch -t brt to prefetch BRT (block cloning table) - Add send:encrypted permission - Rename arc_summary and arcstat to zarcsummary and zarcstat - Temporarily "sit out" child vdevs that are being abnormally slow - Relax topology restrictions on special/dedup vdevs - Improvements to ashift handling - Multiple gang blocks improvements and fixes - New dedup optimizations and fixes - New block cloning optimizations and fixes Downloads and more details on today's OpenZFS 2.4 stable release via GitHub. 30 Comments Tweet IFRAME: //www.facebook.com/plugins/like.php?href=https://www.phoronix.com/news/ OpenZFS-2.4-Released&width=200&height=46&colorscheme=light&layout=butto n_count&action=like&show_faces=false&send=true Related News FUSE 3.18 Released With FUSE-Over-IO-uring, Statx Support Cryptsetup 2.8.2 Released With BitLocker Clear Key Support Linux Patches Begin Adapting RAID Code To Use Folios FamFS Hopes To Go Upstream In 2026 NFS Lands Initial Support For Directory Delegations In Linux 6.19 Linux Patches Fix eMMC Secure Erase Of 1GB Taking ~10 Minutes To Now Just 2 Seconds About The Author Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com. Popular News This Week Mozilla Names New CEO, Firefox To Evolve Into A "Modern AI Browser" Linux Kernel Rust Code Sees Its First CVE Vulnerability New Linux Patch Confirms: Rust Experiment Is Done, Rust Is Here To Stay Torvalds On Linux Security Modules: "I Already Think We Have Too Many Of Those Pointless Things" New Rule Forbids GNOME Shell Extensions Made Using AI Generated Code KDE Plasma 6.6 Will Finally Support Proper Screen Mirroring On Wayland Fedora Games Lab Looks To Be Revitalized As Modern Linux Gaming Showcase Exciting Laptop & Gaming Handheld Device Improvements Merged For Linux 6.19 Latest Linux News Intel Prepares For KVM Guest VMs To Support Advanced Performance Extensions (APX) WMI Marshalling Support For Linux Aims To Match Windows' ACPI/WMI Handling Linux 6.19 Lands Fix For Seagate Barracuda HDD Taking Down The SATA Bus Darktable 5.4 RAW Photography Software Reaches Parity Between X11 & Wayland GotaTun Open-Source Rust WireGuard Implementation Announced By Mullvad Intel Readies Multi-Queue Support For Linux 7.0 As New Feature For Crescent Island Arch Linux's Main NVIDIA Driver Packages Now Using The Open Kernel Modules Linux Mint 22.3 Beta Released With Cinnamon 6.6 Desktop Gemini AI Yielding Sloppy Code For Ubuntu Development With New Helper Script Mesa 26.0 NVK Driver Lands Improvement For NVIDIA GeForce RTX 20 "Turing" GPUs LoongArch Promoted To Being An Official Architecture For Debian 14 KDE Plasma 6.6 Finally Supporting Ambient Light Sensors, Fixing Windows Games With HDR Chrome/Chromium Add Support For Printing Via XDG Portal Show Your Support, Go Premium Phoronix Premium allows ad-free access to the site, multi-page articles on a single page, and other features while supporting this site's continued operations. Latest Featured Articles Linux 6.12 To Linux 6.18 LTS Upgrade Offers Worthwhile Benefits For 5th Gen AMD EPYC AMD Radeon RX 9000 Series vs. NVIDIA GeForce RTX 50 Open-Source Linux Performance For 2025 Intel Xeon 6980P vs. AMD EPYC 9755 128-Core Showdown With The Latest Linux Software For EOY2025 The Significant Performance Gains For Radeon RADV Ray-Tracing Performance In 2025 Early Linux 6.19 Benchmarks On AMD EPYC 9965 2P Excelling For AI & HPC Performance Support Phoronix The mission at Phoronix since 2004 has centered around enriching the Linux hardware experience. In addition to supporting our site through advertisements, you can help by subscribing to Phoronix Premium. You can also contribute to Phoronix through tips/donations via PayPal or Stripe. Phoronix Media __________________________________________________________________ * Contact * Michael Larabel Phoronix Premium __________________________________________________________________ * Support Phoronix * While Having Ad-Free Browsing, * Single-Page Article Viewing Share __________________________________________________________________ * Facebook * Twitter / X * Legal Disclaimer, Privacy Policy, Cookies | (BUTTON) Privacy Manager | Contact * Copyright © 2004 - 2025 by Phoronix Media. * All trademarks used are properties of their respective owners. All rights reserved.