With Ubuntu 10.04
basing off the Linux 2.6.32 kernel
and this distribution release being a Long-Term Support (LTS) release that will be maintained longer than normal Ubuntu releases -- and other vendors using the Linux 2.6.32 kernel for their enterprise updates too -- this kernel will live on longer as well.
Greg Kroah-Hartman has announced that the Linux 2.6.32 kernel stable tree will be a "long-term" stable release that should be maintained for two to three years. This stable branch should live on as long as a flow of stable, back-ported patches continue to arrive in Greg's email inbox. In contrast, the stable branch of the Linux 2.6.31 kernel has stopped as of yesterday. The last long-term stable kernel, Linux 2.6.27, will also be closing up in H2'2010.
Greg's kernel stable tree status update can be found on his blog
. Meanwhile, development of the Linux 2.6.33 kernel
continues in full swing.