Comment 44 for bug 585651

Yes, kernel 2.6.35.3 is a stable release. Non-stable kernel releases are designated with an -rc suffix, for example the latest kernel at the time of writing this is 2.6.36-rc2. The upcoming Ubuntu 10.10 "Maverick Meerkat" has released several alpha releases using the 2.6.35 kernel. I have been using Maverick alpha 3 (plus official updates to firefox, libcairo2 and mesa) for several weeks now without an issue, although admittedly my hardware is rather old. My system's uname is Linux 2.6.35-14-generic i686. 2.6.35.3 is the third maintenance release of the 2.6.35 kernel and should be fine for use on a production machine. Maverick will be shipping with this kernel, or possibly 2.6.35.4 (the Maverick KernelFreeze is scheduled for September 16th, 2010, as per https://wiki.ubuntu.com/MaverickReleaseSchedule )