The linux 2.6.27 kernel ([http://kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.27 full SCM git log]) is neither released nor finished. Its merge window has officially been closed by the [http://marc.info/?l=linux-kernel&m=121730204732684&w=2 2.6.27-rc1 release on July 28th 2008.]
Summary: 2.6.27 adds support for ...
1. Important features (AKA: the cool stuff)
2. Subsystems
3. Drivers
3.1. External Links
If you want to know what is waited before this kernelnewbies summary is completed, you can read
a review of what went into the merge window at the Linux Weather Forecast : [http://linux-foundation.org/weblogs/lwf/2008/07/29/the-2627-merge-window-closes/ The 2.6.27 merge window closes]
- feature lists on LWN
[http://lwn.net/Articles/289990/ 2.6.27: what's coming (part 1)]
[http://lwn.net/Articles/291033/ 2.6.27 merge window, part 2]
[http://lwn.net/Articles/291630/ 2.6.27 - the rest of the story]