This is why we have multiple kernel branches…
At this point, only v4.19.x → mainline are “tested”… While users are still free to use anything from v3.8.x → v4.14.x… It’s safe to assume, what ever kernel is “pre-installed” is what that image was designed for…
Over time we’ve moved more mainline and removed our special drivers…
Right now my main focus is v5.10.x + Debian 11.x… (I consider Debian 10.x is done at v4.19.x)
You can consider these images frozen (Debian 10.x) : Debian 10.x (Buster) - Monthly Snapshot - 2023-07-01 - (FINAL) Just fixes…
Whereas (Debian 11.x) is more, make it works like older images but with new ideas…: Debian 11.x (Bullseye) - Monthly Snapshot - 2023-10-07
Edit @silver2row is 8 years good enough for an LTS? Every other month (when there is stock) we have users trying to run the old 7.5 2014-05-14 (and older), main problem is the kernel needs an eMMC update patch, which we still deal with.
Regards,