After three long months, the illustrious Linus Torvalds has finally released Linux 2.6.23. This new version includes
- the CFS process scheduler,
- a simpler read-ahead mechanism,
- the lguest “Linux on Linux” para-virtualization hypervisor,
- XEN guest support,
- KVM SMP guest support and
- variable process argument length.
SLUB is now the default slab allocator, there’s SELinux protection for exploiting null de-references using mmap, XFS and ext4 improvements, PPP over L2TP support.
Also the “lumpy” reclaim algorithm, a userspace driver framework, the O_CLOEXEC file descriptor flag, splice improvements a new fallocate() syscall, lock statistics, support for multi-queue network devices, various new device drivers and many many other minor features, upgrades, security and bug fixes.
See the detailed kernelnewbies.org ChangeLog and the kernel.org ChangeLog for complete details (same information just presented differently - one for newbies, one for old school guys!).
Upgrade and Enjoy - but only if you know what you’re doing. Hop on over to kernel.org and get it while it’s hot!! I will be posting - at some stage, a detailed Linux Kernel Building Guide - but when - that’s an unknown 
Warm Regards,
Shabbir
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