This is a description of the changes made across the 2.6.x development series. Changes made to the 2.5.x-2.6.0 development series can be found in the Linux25Changes page
[http://wiki.kernelnewbies.org/Linux_2_6_14 Linux 2.6.14] Released October 27, 2005
[http://wiki.kernelnewbies.org/Linux_2_6_13 Linux 2.6.13] Released August 29, 2005
[http://wiki.kernelnewbies.org/Linux_2_6_12 Linux 2.6.12] Released June 17, 2005
[http://wiki.kernelnewbies.org/Linux_2_6_11 Linux 2.6.11] Released March 2, 2005
[http://wiki.kernelnewbies.org/Linux_2_6_10 Linux 2.6.10] Released December 24, 2004
[http://wiki.kernelnewbies.org/Linux_2_6_9 Linux 2.6.9] Released October 19, 2004
[http://wiki.kernelnewbies.org/Linux_2_6_8 Linux 2.6.8] Released August 14, 2004
[http://wiki.kernelnewbies.org/Linux_2_6_7 Linux 2.6.7] Released June 16, 2004
[http://wiki.kernelnewbies.org/Linux_2_6_6 Linux 2.6.6] Released May 10, 2004
[http://wiki.kernelnewbies.org/Linux_2_6_5 Linux 2.6.5] Released April 4, 2004
[http://wiki.kernelnewbies.org/Linux_2_6_4 Linux 2.6.4] Released March 11, 2004
[http://wiki.kernelnewbies.org/Linux_2_6_3 Linux 2.6.3] Released February 18, 2004
2.6.2
Released February 4, 2004 [http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.2 changelog]
RAID 6 implementation [http://kernel.org/git/?p=linux/kernel/git/torvalds/old-2.6-bkcvs.git;a=commit;h=8869ce42bfc6301d645eabb64eea343569be9575 (commit)]
One-shot support for epoll [http://kernel.org/git/?p=linux/kernel/git/torvalds/old-2.6-bkcvs.git;a=commit;h=b248eb341da327a418e3fdd55bcad209c3802892 (commit)]
Add support for m68knommu [http://kernel.org/git/?p=linux/kernel/git/torvalds/old-2.6-bkcvs.git;a=commit;h=ccc218ff4f93913018f735201586caa19dc022db (commit)]
Schedulers interactivity improvements [http://kernel.org/git/?p=linux/kernel/git/torvalds/old-2.6-bkcvs.git;a=commit;h=80605ac9c461beed318da1af7f0355c66d90f66c (commit)]
- New Qlogic SCSI driver
2.6.1
Released January 9, 2004 [http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.1 changelog]
Message Signaled Interrupt support - MSI [http://lwn.net/Articles/44135/ (LWN article)] [http://kernel.org/git/?p=linux/kernel/git/torvalds/old-2.6-bkcvs.git;a=commit;h=805bdfd65d2a8866870d1813cd39d739d1e2942e (commit)]
Add 32bit a.out support for x86-64 [http://kernel.org/git/?p=linux/kernel/git/torvalds/old-2.6-bkcvs.git;a=commit;h=dabe6cb0fc24dd4d3ee5b51c99f551a883dc2d66 (commit)]
Add `gcc -Os' config option [http://kernel.org/git/?p=linux/kernel/git/torvalds/old-2.6-bkcvs.git;a=commit;h=4b8ca7b0c8fb01ba87f9f6fa23f287e683f06346 (commit)]
Extensible Firmware Interface (EFI) support. [http://kernel.org/git/?p=linux/kernel/git/torvalds/old-2.6-bkcvs.git;a=commit;h=556bd742f63bdc0d0fdbfb28f907e272ed61d370 (commit)]
2.6.0
Released December 18, 2003 [http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.0 changelog]