Linux kernel version history: Difference between revisions

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m Releases 4.x.y: marking 4.4 and 4.19 unsupported
Releases before 2.6.0: +bzImage support
 
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{{lead missing|date=August 2025}}{{Short description|Version history of the Linux kernel}}
{{broader|History of Linux}}
{{Use dmy dates|date=January 2020}}
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bar:6.17
color:DEV from:10/08/2025 till:$now text:6.17.x
# https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/refs/tags
 
bar:6.16
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bar:6.15
color:DEV from:06/04/2025 till:24/05/2025 text:6.15.x
color:SUPPORT from:25/05/2025 till:$now20/08/2025
# https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/refs/tags
 
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<!-- Versions with data from Wikidata -->
<!-- Preview (rc) version: there is currently no rc version-->
|-
|{{Version|cp|{{string split|{{wikidata|property|preferred|Q14579|P348|P548=Q1072356}}|"-"}}}}
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|-<!-- Latest stable version - remove the ".0" once the version becomes .1 -->
|{{Version|c|{{#invoke:Strip version patch|main|{{wikidata|property|preferred|Q14579|P348|P548=Q2804309}}}}}}
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| {{Version|co|6.15}}
| 25 May 2025<ref>{{cite web|url=https://lore.kernel.org/all/CAHk-=wiLRW8DN8-4jmeCZH0OpO8skXOC5e6FwMfsPwGMpQYmVQ@mail.gmail.com/|author=Linus Torvalds|title=Linux 6.15|date=2025-05-25}}</ref>
| 6.15.811<ref>{{cite web|url=https://lore.kernel.org/all/20250724112025080157-versepancreas-impishfleshed-e79073c0@gregkh/|author=Greg Kroah-Hartman|title=Linux 6.15.89|date=2025-0708-2401}}</ref>
|20 August 2025
|
|
* Btrfs: fast Zstd compression support<ref>{{Cite web |title=Btrfs Adding Fast/Realtime Zstd Compression & Other Performance Optimizations |url=https://www.phoronix.com/news/Linux-6.15-Btrfs |access-date=2025-07-31 |website=www.phoronix.com |language=en}}</ref>
|
|-
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| {{Version|co|6.12}}
| 17 November 2024<ref>{{cite web|url=https://lore.kernel.org/linux-kernel/CAHk-=wgtGkHshfvaAe_O2ntnFBH3EprNk1juieLmjcF2HBwBgQ@mail.gmail.com/|author=Linus Torvalds|title=Linux 6.12|date=2024-11-17}}</ref>
| 6.12.4043{{r|KERNELARCHIVES}}
| December 20262036
|
* [[Real-time operating system|Real-time]] support for x86/x86_64, RISC-V, and ARM64<ref name=":36">{{cite web |title=Linux 6.12 Features Are Super Exciting With Real-Time, Sched_ext, Intel Xe2 & Raspberry Pi 5 |url=https://www.phoronix.com/review/linux-612-features |access-date=2024-11-22 |website=www.phoronix.com |language=en}}</ref>
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| {{Version|co|6.6}}
| 29 October 2023{{r|ACTIVE}}
| 6.6.100102{{r|KERNELARCHIVES}}
| December 2026
|
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| {{Version|co|6.1}}
| {{dts|format=dmy|2022|12|11}}<ref>{{cite mailing list|title=Linux 6.1|url=https://lore.kernel.org/lkml/CAHk-=wj_HcgFZNyZHTLJ7qC2613zphKDtLh6ndciwopZRfH0aQ@mail.gmail.com/|date=11 December 2022|mailing-list=[[LKML]]}|last=Torvalds|first=Linus|author-link=Linus Torvalds}}</ref>
| 6.1.147148<ref name=KERNELARCHIVES>{{cite web|url=https://www.kernel.org/|title=The Linux Kernel Archives|publisher=Kernel.org|accessdate=22 September 2024}}</ref>
| December 2027{{r|ACTIVE}}
August 2033<ref name="CIP maintenance">{{cite web|title=CIP maintenance|url=https://wiki.linuxfoundation.org/civilinfrastructureplatform/start#kernel_maintainership|access-date=7 September 2023}}</ref>
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| {{Version|o|4.4}}
| {{dts|format=dmy|2016|01|10}}<ref>{{cite mailing list |url=https://lkml.org/lkml/2016/1/10/305 |title=Linux 4.4 |last=Torvalds |first=Linus |author-link=Linus Torvalds |date=10 January 2016 |mailing-list=[[LKML]] |access-date=10 June 2016}}</ref>
| 4.4.302<ref name="latest 4.4">{{cite mailing list |url=https://lore.kernel.org/lkml/1643877137240249@kroah.com/ |title=Linux 4.4.302 |last=Kroah-Hartman |first=Greg |author-link=Greg Kroah-Hartman |date=3 February 2022 |mailing-list=[[LKML]] |access-date=25 May 2022}}</ref>4.4-st65st66<ref name=":15" />
| Greg Kroah-Hartman & Sasha Levin{{r|ACTIVE}} <br />
Ulrich Hecht & Pavel Machek<ref name="CIP maintenance"/>
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| December 2005<ref name="2.6.13.5 release" />
|
* [[initramfs]]<ref>{{Cite book |last=Fox |first=Richard |url=https://books.google.com/books?id=VG8LBAAAQBAJ&pg=PA450&dq=initramfs+2.6.13&hl=fr&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwiZ8N2h6KiPAxW1RKQEHXUaJKkQ6AF6BAgGEAM#v=onepage&q=initramfs%202.6.13&f=false |title=Linux with Operating System Concepts |date=2014-08-26 |publisher=CRC Press |isbn=978-1-4822-3589-0 |pages=450 |language=en}}</ref>
| rowspan="3" | Named Woozy [[Numbat]]<ref>{{cite web
| url = http://www.ciol.com/ciol/news/35712/woozy-numbat-released
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| publisher = Informationweek
| date = 2004-12-29
| access-date = 2013-09-12}}</ref>The 2.6.12 release was the first one managed by [[Git]].<ref>{{Cite web |title=Linux 2.6.12 |url=https://lwn.net/Articles/140441/ |access-date=2025-08-03 |website=LWN.net |language=en}}</ref>
| access-date = 2013-09-12}}</ref>
|-
| {{Version|o|2.6.12}}
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* [[watchdog timer]]<ref>{{Cite web |title=Import 1.3.51 - kernel/git/history/history.git - Linux kernel historic tree |url=https://git.kernel.org/pub/scm/linux/kernel/git/history/history.git/commit/?h=1.3.51&id=85ed1260f6998849a1f82fb3e7bfd24ae3fb067f |access-date=2024-05-23 |website=git.kernel.org}}</ref>
* Automatic [[Loadable kernel module|modules]] loading<ref>{{Cite web |title=What is kerneld? |url=https://www.linuxdoc.org/HOWTO/mini/Kerneld/introduction.html |access-date=2024-05-23 |website=www.linuxdoc.org}}</ref>
* [[initrd]] boot support<ref>{{Cite web |title=1. The Linux/x86 Boot Protocol — The Linux Kernel documentation |url=https://www.kernel.org/doc/html/v6.6/arch/x86/boot.html |access-date=2025-08-26 |website=www.kernel.org}}</ref>
* [[bzImage]] support<ref>{{Cite web |last=Rubini |first=Alessandro |date=June 1997 |title=Booting the Kernel |url=https://www.linux.it/~rubini/docs/boot/boot.html |access-date=2025-08-26 |website=www.linux.it}}</ref>
| Greased [[Weasel]]<ref>{{cite web
| title = Test version of new Linux kernel available