2.6.x....

2.6.10 (December 24, 2004)
Kernel events notification mechanism
Driver core functions become GPL-only
BSD secure levels
In-kernel keyring management
ext3 block reservation, online resizing
Big kernel lock preemption
IRQ subsystem reworked

2.6.11 (March 2, 2005)
Four-level page tables
InfiniBand support
Direct rendering rework
ext3 in-inode extended attributes
Circular buffer pipe implementation
Big kernel semaphore
Generic transport class (used by SCSI)