Your distribution constantly asks you to update your kernel....
Disclaimer: As some of our literature may have mentioned before, updating your kernel does carry a (small) risk of breaking your system.
is unprecedented, with a new major release approximately every two to three months.
Each release offers several new features and improvements that a lot of people could take advantage of to make their computing experience faster, more efficient, or better in other ways.
The kernel configuration specifies whether the features and options of a kernel are to be enabled or not, perhaps built into the kernel, or perhaps built as modules which can be loaded into the running kernel on demand.
Hence the configuration file of the new kernel may have new entries the configuration file of the old kernel doesn't have, and it might not have entries anymore which are present in the configuration file of the old kernel.
Now this tree receives security updates as and when they are made available. Thereby, the kernel version progress as (for the 3.8 tree): 3.8.1, 3.8.2, ..., 3.8.13 and so on. Ubuntu doesnt recommend you installing that kernel, simply because they have not tested it extensively themselves yet.
If you do your kernel will be upgraded along these lines to the latest update available within the same tree. But ofcourse, since this is linux, you are free to do whatever you wish to as long as you have root access.
It will also require you to have basic tools like gcc, gnu-make and other essential tools at your behest.2.Making a new kernel from the new sources is basically the same process as making a kernel when installing the system.The difference is that one can use the configuration of the old kernel to create a configuration for the new kernel.The problem, however, is that you usually can’t take advantage of these new kernel releases as soon as they come out — you have to wait until your distribution comes out with a new release that packs a newer kernel with it.We’ve previously laid out the benefits for regularly updating your kernel If you're using a Linux distribution like Ubuntu or Fedora, you're also using the Linux kernel, the core that actually makes your distribution a Linux distribution.
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In Ubuntu, each version comes running linux kernels from a certain tree.