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As you can see in the changelog for the Linux kernel, there are update messages like "Bump ABI - Maverick ABI 28". According to the Ubuntu Wiki, ABI is something like a bridge between the kernel space and the other modules (my interpretation). Does such an update adds extra features and / or bugfixes? Should I upgrade my kernel to the next version? |
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NB: I'm no kernel expert - so this is based on collected knowledge and experience. An ABI "bump" should not bring new features, even though it may "fix" bugs in some modules/applications that are looking for a higher version of the ABI. You should still install these updates, since generally keeping all components in sync will ensure stability and security. |
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First off, you are not looking at the changelog for the linux kernel. You are looking at the meta package, which is a package that depends on the latest kernel. You probably want something like: http://changelogs.ubuntu.com/changelogs/pool/main/l/linux-image-2.6.35-28-generic/linux-image-2.6.35-28-generic_2.6.35-28.50/changelog The purpose of this meta-package is to transition the user through these ABI bumps. I hold the same view as you on the ABI and the kernel. Practically speaking, an ABI bump means that all the modules need to be rebuilt against the updated kernel. My understanding is also in line with Roland, in that an ABI bump does not mean new features, just critical fixes and security updates. |
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