$ git log --pretty=format:'%h %s (%cs)%d'
254f49634ee16 Linux 7.1-rc1 (2026-04-26)
(HEAD -> main, tag: v7.1-rc1, spdx-linus)
14479877c1ec9 Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux (2026-04-26)
20b64cf8705a0 Merge tag 'tsm-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm (2026-04-26)
b935117fe6d1a Merge tag 'kbuild-fixes-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux (2026-04-25)
2ff1bc41ef913 Merge tag 'power-utilities-2026.04.25' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux (2026-04-25)
211d593314119 Merge tag 'rtc-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux (2026-04-25)
1d9f1b5e4374c Merge tag 'for-next-tpm-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd (2026-04-25)
6112da1ea4a7c Merge branches 'turbostat' and 'x86_energy_perf_policy' into power-utilities (2026-04-25)
f1c35c73191b7 tools/power x86_energy_perf_policy: Version 2026.04.25 (2026-04-25)
18c5b9ea4ea4b tools/power x86_energy_perf_policy.8: Document SoC Slider Options (2026-04-25)
...
$ git cat-file blob HEAD:README
Linux kernel
============
The Linux kernel is the core of any Linux operating system. It manages hardware,
system resources, and provides the fundamental services for all other software.
Quick Start
-----------
* Report a bug: See Documentation/admin-guide/reporting-issues.rst
* Get the latest kernel: https://kernel.org
* Build the kernel: See Documentation/admin-guide/quickly-build-trimmed-linux.rst
* Join the community: https://lore.kernel.org/
Essential Documentation
-----------------------
All users should be familiar with:
* Building requirements: Documentation/process/changes.rst
* Code of Conduct: Documentation/process/code-of-conduct.rst
* License: See COPYING
Documentation can be built with make htmldocs or viewed online at:
https://www.kernel.org/doc/html/latest/
Who Are You?
============
Find your role below:
* New Kernel Developer - Getting started with kernel development
* Academic Researcher - Studying kernel internals and architecture
* Security Expert - Hardening and vulnerability analysis
* Backport/Maintenance Engineer - Maintaining stable kernels
* System Administrator - Configuring and troubleshooting
* Maintainer - Leading subsystems and reviewing patches
* Hardware Vendor - Writing drivers for new hardware
* Distribution Maintainer - Packaging kernels for distros
* AI Coding Assistant - LLMs and AI-powered development tools
For Specific Users
==================
New Kernel Developer
--------------------
Welcome! Start your kernel development journey here:
* Getting Started: Documentation/process/development-process.rst
* Your First Patch: Documentation/process/submitting-patches.rst
* Coding Style: Documentation/process/coding-style.rst
* Build System: Documentation/kbuild/index.rst
* Development Tools: Documentation/dev-tools/index.rst
* Kernel Hacking Guide: Documentation/kernel-hacking/hacking.rst
* Core APIs: Documentation/core-api/index.rst
Academic Researcher
-------------------
Explore the kernel's architecture and internals:
* Researcher Guidelines: Documentation/process/researcher-guidelines.rst
* Memory Management: Documentation/mm/index.rst
* Scheduler: Documentation/scheduler/index.rst
* Networking Stack: Documentation/networking/index.rst
* Filesystems: Documentation/filesystems/index.rst
* RCU (Read-Copy Update): Documentation/RCU/index.rst
* Locking Primitives: Documentation/locking/index.rst
* Power Management: Documentation/power/index.rst
Security Expert
---------------
Security documentation and hardening guides:
* Security Documentation: Documentation/security/index.rst
* LSM Development: Documentation/security/lsm-development.rst
* Self Protection: Documentation/security/self-protection.rst
* Reporting Vulnerabilities: Documentation/process/security-bugs.rst
* CVE Procedures: Documentation/process/cve.rst
* Embargoed Hardware Issues: Documentation/process/embargoed-hardware-issues.rst
* Security Features: Documentation/userspace-api/seccomp_filter.rst
Backport/Maintenance Engineer
-----------------------------
Maintain and stabilize kernel versions:
* Stable Kernel Rules: Documentation/process/stable-kernel-rules.rst
* Backporting Guide: Documentation/process/backporting.rst
* Applying Patches: Documentation/process/applying-patches.rst
* Subsystem Profile: Documentation/maintainer/maintainer-entry-profile.rst
* Git for Maintainers: Documentation/maintainer/configure-git.rst
System Administrator
--------------------
Configure, tune, and troubleshoot Linux systems:
* Admin Guide: Documentation/admin-guide/index.rst
* Kernel Parameters: Documentation/admin-guide/kernel-parameters.rst
* Sysctl Tuning: Documentation/admin-guide/sysctl/index.rst
* Tracing/Debugging: Documentation/trace/index.rst
* Performance Security: Documentation/admin-guide/perf-security.rst
* Hardware Monitoring: Documentation/hwmon/index.rst
Maintainer
----------
Lead kernel subsystems and manage contributions:
* Maintainer Handbook: Documentation/maintainer/index.rst
* Pull Requests: Documentation/maintainer/pull-requests.rst
* Managing Patches: Documentation/maintainer/modifying-patches.rst
* Rebasing and Merging: Documentation/maintainer/rebasing-and-merging.rst
* Development Process: Documentation/process/maintainer-handbooks.rst
* Maintainer Entry Profile: Documentation/maintainer/maintainer-entry-profile.rst
* Git Configuration: Documentation/maintainer/configure-git.rst
Hardware Vendor
---------------
Write drivers and support new hardware:
* Driver API Guide: Documentation/driver-api/index.rst
* Driver Model: Documentation/driver-api/driver-model/driver.rst
* Device Drivers: Documentation/driver-api/infrastructure.rst
* Bus Types: Documentation/driver-api/driver-model/bus.rst
* Device Tree Bindings: Documentation/devicetree/bindings/
* Power Management: Documentation/driver-api/pm/index.rst
* DMA API: Documentation/core-api/dma-api.rst
Distribution Maintainer
-----------------------
Package and distribute the kernel:
* Stable Kernel Rules: Documentation/process/stable-kernel-rules.rst
* ABI Documentation: Documentation/ABI/README
* Kernel Configuration: Documentation/kbuild/kconfig.rst
* Module Signing: Documentation/admin-guide/module-signing.rst
* Kernel Parameters: Documentation/admin-guide/kernel-parameters.rst
* Tainted Kernels: Documentation/admin-guide/tainted-kernels.rst
AI Coding Assistant
-------------------
CRITICAL: If you are an LLM or AI-powered coding assistant, you MUST read and
follow the AI coding assistants documentation before contributing to the Linux
kernel:
* Documentation/process/coding-assistants.rst
This documentation contains essential requirements about licensing, attribution,
and the Developer Certificate of Origin that all AI tools must comply with.
Communication and Support
=========================
* Mailing Lists: https://lore.kernel.org/
* IRC: #kernelnewbies on irc.oftc.net
* Bugzilla: https://bugzilla.kernel.org/
* MAINTAINERS file: Lists subsystem maintainers and mailing lists
* Email Clients: Documentation/process/email-clients.rst
# heads (aka `branches'):
$ git for-each-ref --sort=-creatordate refs/heads \
--format='%(HEAD) %(refname:short) %(subject) (%(creatordate:short))'
* main Linux 7.1-rc1 (2026-04-26)
spdx-linus Linux 7.1-rc1 (2026-04-26)
spdx Linus 5.3-rc1 (2019-07-21)
# tags:
$ git for-each-ref --sort=-creatordate refs/tags \
--format='%(refname:short) %(subject) (%(creatordate:short))'
v7.1-rc1 Linux 7.1-rc1 (2026-04-26) tar.gz
v7.0 Linux 7.0 (2026-04-12) tar.gz
v7.0-rc7 Linux 7.0-rc7 (2026-04-05) tar.gz
v7.0-rc6 Linux 7.0-rc6 (2026-03-29) tar.gz
v7.0-rc5 Linux 7.0-rc5 (2026-03-22) tar.gz
v7.0-rc4 Linux 7.0-rc4 (2026-03-15) tar.gz
v7.0-rc3 Linux 7.0-rc3 (2026-03-08) tar.gz
v7.0-rc2 Linux 7.0-rc2 (2026-03-01) tar.gz
v7.0-rc1 Linux 7.0-rc1 (2026-02-22) tar.gz
v6.19 Linux 6.19 (2026-02-08) tar.gz
...
# associated public inboxes:
# (number on the left is used for dev purposes)
1368652 lkml
418110 stable
364496 netdev
275229 linux-arm-kernel
147777 linux-devicetree
118949 linux-wireless
113464 dri-devel
78563 linuxppc-dev
77890 linux-fsdevel
77587 linux-mm
76432 linux-media
72862 alsa-devel
71511 linux-patches
57818 intel-gfx
57317 kvm
53314 linux-scsi
53093 amd-gfx
47835 linux-arm-msm
43474 linux-omap
42805 linux-mips
42701 linux-arch
38820 linux-xfs
36883 linux-doc
35184 bpf
34865 linux-rdma
33215 linux-nfs
33204 linux-pm
33048 linux-crypto
31533 linux-mediatek
30685 linux-s390
29487 linux-samsung-soc
28915 linux-block
28094 linux-acpi
26663 netfilter-devel
26588 linux-riscv
26092 linux-perf-users
25768 linux-renesas-soc
24948 linux-gpio
24760 linux-clk
24705 linux-pci
24501 linux-mtd
23732 linux-usb
23153 linux-iio
23142 linux-sh
22768 linux-tegra
22313 linux-kselftest
20934 sparclinux
20353 linux-btrfs
19857 kernel-janitors
19602 linux-input
18288 kvmarm
17382 linux-ext4
17026 linux-staging
16806 linux-iommu
16657 linux-serial
16309 xen-devel
16270 linux-ide
16086 linux-api
15690 linux-rockchip
15561 linux-fbdev
15474 linux-mmc
15240 linux-cifs
14908 virtualization
14814 u-boot
14792 linux-kbuild
13996 driverdev-devel
13060 linux-bluetooth
13002 intel-xe
12957 linux-spi
12953 linux-security-module
12834 intel-wired-lan
12728 linux-parisc
12309 qemu-devel
12205 linux-amlogic
12039 platform-driver-x86
12037 linux-i2c
11590 linux-um
11306 linux-f2fs-devel
10890 linux-sound
10818 ceph-devel
10341 linux-ia64
10267 dm-devel
10138 linux-alpha
9738 linux-m68k
9061 cgroups
9058 linux-snps-arc
8788 linux-nvme
8747 nouveau
8562 nvdimm
8557 linux-sunxi
8154 loongarch
7870 linux-can
7686 linux-trace-kernel
7643 linux-efi
7216 cluster-devel
7066 linux-hwmon
6826 linux-rtc
6787 linux-hardening
6766 linux-raid
6736 linux-watchdog
6708 linux-hexagon
6625 lustre-devel
6496 containers
6423 batman
6394 cip-dev
6329 openrisc
6058 ocfs2-devel
6057 rcu
5972 kvm-ppc
5953 dmaengine
5952 selinux
5745 io-uring
5565 llvm
5527 linux-nvdimm
5504 linux-rt-users
5498 linux-integrity
5425 linux-csky
5397 imx
5205 linux-next
5203 linux-leds
5192 rust-for-linux
5174 linux-pwm
4817 kernel-hardening
4817 mptcp
4722 linux-sctp
4545 linux-hyperv
4389 linux-cxl
4312 outreachy
4232 bridge
4148 linux-remoteproc
4100 linux-phy
4047 ath10k
4034 dpdk-dev
3987 git
3905 kexec
3810 buildroot
3804 linux-modules
3780 keyrings
3748 lm-sensors
3682 linux-erofs
3593 linux-nilfs
3569 soc
3479 linux-wpan
3210 linux-fscrypt
3209 target-devel
3111 linux-unionfs
3021 linux-bcache
2933 ath11k
2871 linux-edac
2842 b4-sent
2693 ath12k
2469 openbmc
2439 asahi
2341 v9fs
2295 ath9k-devel
2287 chrome-platform
2274 lvs-devel
2270 linux-hams
2203 openembedded-core
2095 phone-devel
2012 damon
1979 ntfs3
1947 linux-audit
1825 linux-bcachefs
1690 linux-fpga
1602 linux-kernel-mentees
1591 cpufreq
1571 openembedded-devel
1533 dccp
1482 linux-trace-devel
1456 netfs
1454 gfs2
1448 ecryptfs
1421 reiserfs-devel
1414 linux-coco
1377 b43-dev
1258 historical-speck
1122 linux-x25
1090 linux-sgx
1037 live-patching
1034 ntb
1001 fsverity
959 linux-metag
908 fstests
880 oe-kbuild-all
858 linux-spdx
840 linux-i3c
809 ltp
781 linux-sparse
759 autofs
756 audit
718 sched-ext
699 igt-dev
684 netfilter
670 linux-aspeed
664 linux-man
640 cocci
640 lvm-devel
637 linux-ppp
590 linux-toolchains
548 qemu-riscv
537 tpmdd-devel
510 regressions
488 linux-oxnas
482 kvm-riscv
477 yocto
465 oe-lkp
421 virtio-dev
419 linux-rt-devel
417 spacemit
392 wireguard
392 sophgo
370 acpica-devel
354 mhi
344 kernel-tls-handshake
344 arm-scmi
339 workflows
311 linux-nfc
311 oe-linux-nfc
290 u-boot-amlogic
272 brcm80211
262 lttng-dev
224 yocto-meta-ti
224 grub-devel
219 bitbake-devel
218 mm-commits
212 yocto-meta-arago
202 xfs-stable
198 backports
194 ofono
171 util-linux
169 kernel-testers
166 yocto-meta-freescale
164 fio
158 xenomai
158 poky
150 linux-embedded
149 xdp-newbies
149 devicetree-compiler
149 kvm-ia64
140 kernelci
137 yocto-meta-arm
133 virtio-fs
131 op-tee
126 driver-core
125 x86-cpuid
124 linux-kernel-announce
100 iwd
99 trinity
96 lkmm
90 linux-laptop
89 yocto-meta-virtualization
86 kernelnewbies
81 yocto-docs
80 initramfs
76 selinux-refpolicy
76 linux-btrace
73 ksummit
72 linux-hotplug
64 ksummit-discuss
61 fuego
59 linux-firmware
59 perfbook
57 ell
57 yocto-toaster
41 stable-rt
39 dwarves
38 timestamp
38 barebox
34 virtio-comment
33 kdevops
33 yocto-patches
31 wireless-regdb
30 qemu-arm
29 linux-console
28 devicetree-spec
28 rpdfs-devel
27 linux-debuggers
27 powertop
25 linux-lvm
22 oe-kbuild
19 connman
18 dash
17 linux-safety
16 linux-dash
16 ultralinux
13 linux-trace-users
13 hail-devel
12 dtrace
11 mailbox
9 radiotap
9 kbd
9 smatch
8 tools
8 tech-board-discuss
8 opensbi
7 qemu-rust
6 ccan
5 keys
5 linux-newbie
5 linux-numa
5 accel-config
5 criu
4 dm-crypt
4 linux-msdos
4 lartc
3 stgt
3 linux-smp
3 tpm2
2 linux-dwarves
2 oe-chipsec
2 syzbot
1 signatures
1 linux-bugs
1 cti-tac
1 linux-config
1 linux-8086
1 mlmmj
1 spdk
git clone https://yhbt.net/lore/pub/scm/linux/kernel/git/gregkh/spdx.git