Linux Kernel changelog

• https://en.wikipedia.org/wiki/Linux_kernel_version_history
• https://kernelnewbies.org/LinuxVersions

2022

• 5.20 (pending) https://kernelnewbies.org/Linux_5.20
• 5.19 Jul 2022 https://kernelnewbies.org/Linux_5.19
  • Support for IPv6 packets larger than 64KB
  • AMD's SEV-SNP and Intel's TDX support for more secure virtualized guests
  • New LoongArch architecture
  • Support for hundreds of millions of extended attributes per inode in XFS
  • Support for ID mapping in overlayfs
  • proactive reclaim in memory control groups added
  • support for NFS Courteous Server
  • support for ZSTD compressed firmware files
  • Several new BPF features added
  • ahci: Add a generic 'controller2' RAID id commit
  • nvme-apple: Add initial Apple SoC NVMe driver
  • hpe-wdt: Introduce HPE GXP Watchdog

• 5.18 May 2022 https://kernelnewbies.org/Linux_5.18
  • Flexible arrays
  • Intel Indirect Branch Tracking support on Intel CPUs
  • Stricter memcpy() compile-time bounds checking
  • User events
  • Switch to C11

• 5.17 Mar 2022 https://kernelnewbies.org/Linux_5.17
  • switches the entropy extractor in the RNG from SHA-1 to BLAKE2s

• 5.16 Jan 2022 https://kernelnewbies.org/Linux_5.16
  • Memory folios infrastructure for a faster memory management
  • Support for AMX instructions

2021

• 5.15 Oct 2021 https://kernelnewbies.org/Linux_5.15
  • New NTFS driver with read-write support
  • A new process_mrelease(2) system call to let service managers release process resources faster
  • Apple M1 IOMMU driver

• 5.14 Aug 2021 https://kernelnewbies.org/Linux_5.14, https://lwn.net/Articles/867706/
  • Control over which processes can share a core

• 5.13 Jun 2021 https://kernelnewbies.org/Linux_5.13
  • virtio sound driver
  • misc cgroup
  • Preparatory Apple M1 support

• 5.12 April 2021 https://kernelnewbies.org/Linux_5.12, https://lwn.net/Articles/853289/
  • ID mapping in mounts which allows to map an UID to a different one in a mount
  • Eager NFS writes
  • Support for selecting the preemption model at runtime
  • Low-overhead memory error detector
  • netfilter packet-filtering mechanism now supports the idea of "ownership" of specific tables. This allows, for example, a firewall daemon to maintain exclusive control of the tables it manages
  • LTO support in Clang

• 5.11 Feb 2021 https://kernelnewbies.org/Linux_5.11 (Ubuntu 21.04 LTS)
  • Unprivileged Overlayfs mounts
  • Ceph implement msgr2.1 protocol (crc and secure modes)
  • XFS add the ability to flag a filesystem for repair

2020

• 5.10 December 2020 - https://kernelnewbies.org/Linux_5.10 (LTS)
  • ext4 fast commit support
  • virtio-fs performance improvements, added supports for DAX
  • Add support for Nitro Enclaves, a new Amazon Elastic Compute Cloud (EC2) capability that allows customers to carve out isolated compute environments within EC2 instances

• 5.9 October 2020 https://kernelnewbies.org/Linux_5.9
  • Support for zstd compressed kernel, ramdisk and initramfs
  • NFS support for extended attributes

• 5.8 Aug 2020 https://kernelnewbies.org/Linux_5.8, Ubuntu 20.10 Groovy Gorilla
  • IPv6 MPLS support
  • better behavior in memory thrashing situations (vm.swappiness)
  • Dirty Pipe: CVE-2022-0847

• 5.7 May 2020 - https://kernelnewbies.org/Linux_5.7
  • Better exFAT file system implementation
• 5.6 March 2020 - https://kernelnewbies.org/Linux_5.6
  • WireGuard fast and secure VPN
  • USB4 initial implementation

• 5.5 January 2020 - https://kernelnewbies.org/Linux_5.5
  • Block: Add iostat counters for flush requests (Added sysstat support in 2019/12/27 )

2019

• 5.4 Nov 2019 https://kernelnewbies.org/Linux_5.4 (Ubuntu 20.04 LTS) Kernel lockdown, implemented as a Linux Security Module
  • virtio-fs included
• 5.3 https://kernelnewbies.org/Linux_5.3
• 5.2 https://kernelnewbies.org/Linux_5.2
• 5.1 https://kernelnewbies.org/Linux_5.1 io_uring
• 5.0 https://kernelnewbies.org/Linux_5.0

2018

• 4.20 https://kernelnewbies.org/Linux_4.20
• 4.19 https://kernelnewbies.org/Linux_4.19
• 4.18 https://kernelnewbies.org/Linux_4.18
• 4.17 https://kernelnewbies.org/Linux_4.17
• 4.16 https://kernelnewbies.org/Linux_4.16
• 4.15 https://kernelnewbies.org/Linux_4.15 Ubuntu 18.04 LTS

2017

• 4.14 https://kernelnewbies.org/Linux_4.14
• 4.13 https://kernelnewbies.org/Linux_4.13
• 4.12 https://kernelnewbies.org/Linux_4.12
• 4.11 https://kernelnewbies.org/Linux_4.11
• 4.10 https://kernelnewbies.org/Linux_4.10

2016

• 4.9 https://kernelnewbies.org/Linux_4.9
• 4.8 https://kernelnewbies.org/Linux_4.8
• 4.7 https://kernelnewbies.org/Linux_4.7
• 4.6 https://kernelnewbies.org/Linux_4.6
• 4.5 https://kernelnewbies.org/Linux_4.5 cgroups-v2
• 4.4 https://kernelnewbies.org/Linux_4.4

2015

• 4.3 https://kernelnewbies.org/Linux_4.3
• 4.2 https://kernelnewbies.org/Linux_4.2
• 4.1 https://kernelnewbies.org/Linux_4.1
• 4.0 https://kernelnewbies.org/Linux_4.0

• 3.19 https://kernelnewbies.org/Linux_3.19

2014

• 3.18 https://kernelnewbies.org/Linux_3.18
  • Overlay
• 3.17 https://kernelnewbies.org/Linux_3.17
• 3.16 https://kernelnewbies.org/Linux_3.16
• 3.15 https://kernelnewbies.org/Linux_3.15
• 3.14 https://kernelnewbies.org/Linux_3.14
• 3.13 https://kernelnewbies.org/Linux_3.13 Improved performance in NUMA systems

2013

• 3.12 https://kernelnewbies.org/Linux_3.12
• 3.11 https://kernelnewbies.org/Linux_3.11
• 3.10 https://kernelnewbies.org/Linux_3.10
• April 3.9 https://kernelnewbies.org/Linux_3.9
  • ARM architecture port now supports the KVM virtualization system
• 3.8 https://kernelnewbies.org/Linux_3.8

2012

• 3.7 https://kernelnewbies.org/Linux_3.7 Support for ARMv8-A, TCP Fast Open
• 3.6 https://kernelnewbies.org/Linux_3.6
• 3.5 https://kernelnewbies.org/Linux_3.5
• 3.4 https://kernelnewbies.org/Linux_3.4
• 3.3 NVMe ?

2011

• 2.6.39 https://kernelnewbies.org/Linux_2_6_39
• 2.6.38 https://kernelnewbies.org/Linux_2_6_38
• 2.6.37 https://kernelnewbies.org/Linux_2_6_37

2010

• 2.6.36 https://kernelnewbies.org/Linux_2_6_36
• 2.6.35 https://kernelnewbies.org/Linux_2_6_35
• 2.6.34 https://kernelnewbies.org/Linux_2_6_34
• 2.6.33 https://kernelnewbies.org/Linux_2_6_33

2009

• 2.6.32 https://kernelnewbies.org/Linux_2_6_32
• 2.6.31 https://kernelnewbies.org/Linux_2_6_31
• 2.6.30 https://kernelnewbies.org/Linux_2_6_30
• 2.6.30 https://kernelnewbies.org/Linux_2_6_30
• 2.6.29 https://kernelnewbies.org/Linux_2_6_29
  • WiMax, btrfs and squashfs

2008

• 2.6.28 https://kernelnewbies.org/Linux_2_6_28
• 2.6.27 https://kernelnewbies.org/Linux_2_6_27
• 2.6.26 https://kernelnewbies.org/Linux_2_6_26
• 2.6.25 https://kernelnewbies.org/Linux_2_6_25
• 2.6.24 https://kernelnewbies.org/Linux_2_6_24
  • cgroups functionality released
  • SPI/SDIO MMC support
  • support for PID and network namespaces

2007

• 2.6.23 https://kernelnewbies.org/Linux_2_6_23 prctl, PR_SET_SECCOMP
• 2.6.22 https://kernelnewbies.org/Linux_2_6_22
• 2.6.21 https://kernelnewbies.org/Linux_2_6_21
• 2.6.20 https://kernelnewbies.org/Linux_2_6_20 February 2007 KVM merged

2006

• 2.6.19 https://kernelnewbies.org/Linux_2_6_19 Ecryptfs
• 2.6.18 https://kernelnewbies.org/Linux_2_6_18
• 2.6.17 https://kernelnewbies.org/Linux_2_6_17
• 2.6.16 https://kernelnewbies.org/Linux_2_6_16
• 2.6.15 https://kernelnewbies.org/Linux_2_6_15

2005

• 2.6.14 https://kernelnewbies.org/Linux_2_6_14
• 2.6.13 https://kernelnewbies.org/Linux_2_6_13 Inotify
• 2.6.12 https://kernelnewbies.org/Linux_2_6_12
• 2.6.11 https://kernelnewbies.org/Linux_2_6_11

2004

• 2.6.10 https://kernelnewbies.org/Linux_2_6_10
• 2.6.9 https://kernelnewbies.org/Linux_2_6_9
• 2.6.8 https://kernelnewbies.org/Linux_2_6_8
• 2.6.7 https://kernelnewbies.org/Linux_2_6_7
• 2.6.6 https://kernelnewbies.org/Linux_2_6_6
• 2.6.5 https://kernelnewbies.org/Linux_2_6_5
• 2.6.4 https://kernelnewbies.org/Linux_2_6_4
• 2.6.3 https://kernelnewbies.org/Linux_2_6_3
• 2.6.2 https://kernelnewbies.org/Linux_2_6_2
• 2.6.1 https://kernelnewbies.org/Linux_2_6_1

2003

• 2.6.0 https://kernelnewbies.org/Linux_2_6_0
• Udev

Related

• Kernelnewbies.org
• Ubuntu releases

See also

• Blogs, Linux suggested reading, News, Kubernetes blogs, Announcements, Substack, X.com, .blog
• Linux Kernel: namespaces, Cgroups, OOM, proc, Linux Kernel changelog, sysctl, userfaultfd, Grub, ENOSPC, ENOMEM, DKMS, syscall, Transparent huge pages, smatch, sysfs, vm.swappiness, CFS, Runlevel, Jens Axboe, Consistent Network Device Naming, Initial ramdisk (initrd), modprobe, MTD, Linux Kernel vulnerabilities, /sys/kernel/, KernelCare, unix://, Data Plane Development Kit (DPDK)
• Software changelogs, git log, GA, EoL, EOS, release cycle, apt changelog, docker-compose changelog