Unfortunately, according to Debian Popularity Contest
, around 20% Debian users are still running Jessie.
Most likely situation is no better for Raspbian.
Thank you for the link, but I couldn't find there any explicit statements about deprecation of Jessie (or any of its components). This only confirms lack of documentation about kernel being the one package that gets deprecated much earlier than all (or at least almost all) other packages.
I would prefer returning to the original topic to help other Raspbian users not to run vulnerable/outdated kernels.
I am quite sure that kernel of currently maintained Raspbian version can be installed by the mentioned command-line and that the kernel will most likely work (with some minor issues). Please somebody correct me if I am wrong or if there are other important packages that would still be left behind (after installing Raspbian updates and using rpi-update)!
Can we expect that kernel of the maintained Raspbian version will always contain the latest security fixes (that the kernel is kept up-to-date security-wise)?
Could it be possible to mention in the documentation (e.g. in https://www.raspberrypi.org/documentati ... pdating.md
) that stock kernel is maintained only for current version of Raspbian? Otherwise it is very counter-intuitive that other packages receive updates while kernel is left behind.