In May, we released test builds of Debian Bullseye for all supported OSMC devices. For the next four months, we've been working hard on a number of improvements and fixes to ensure that OSMC is released on the latest version of Debian with the best experience possible.
I have already request in the “testing” thread.
on raspberry just have 2GB of free space on SD for do an upgrade whitout any issue?
if now how i can free some spaces on my 8GB sd? some suggestions?
That should be sufficient.
Thanks @sam_nazarko!
Is there a way to upgrade from the command line? (this is a headless build)
I’m on RPi4, I tried the usual
sudo apt update && sudo apt full-upgrade && reboot
I got kodi 19.4 and some upgrades but debian is still buster.
Never use that command!
Use sudo apt dist-upgrade!
This should be safe. It should do exactly the same as dist-upgrade after checking sources. But the user will then need to check for updates and update again.
I still recommend to use apt-get over apt. Only one has a stable interface (the former).
The first update only switches sources to Bullseye. The second update will then be against the new repositories.
Notwithstanding a “temporary” storage failure interrupting the process, the update on my Pi 3B completed and everything appears to be running normally.
Another good job, @sam_nazarko .
Please start new threads for any issue you experience.
all updates installed whitout any issue from ssh.
i have reboot my pi2 after all and at reboot i have to do “apt autoremove” to clean probably some residues.
during the upgrade procedure i read (on ssh procedure) something about kodi 19.5 but at restart again kodi 19.4 it’s start.
anyway all works, for now, whitout any issue.
i can test after if DAZN addon still work and test if dash and widevine works also at today
if i have some negative feedback i open a new thread in section.
thanks again to continue to maintain in life my pi2 
As explained in the release notes, Kodi 19.5 has not been officially tagged upstream yet.
Updated this morning on my beloved Vero 4K. No problems whatsoever, everything working smoothly just as before.
Thank you! I love my Vero 4K+, it is the best media player on the market!
Thanks a lot for your great work! <3
Went smooth, working well, no issues so far.
One question: What’s the reason to ship linux 4.9.269? Debian 11 ships 5.10.0, Raspbian 11 ships 5.15.61. I wonder why you decided not to pick a more current one as base?
I believe AMLogic are not supporting S905X/D with 5.x.x kernels. Was there anything in particular in 5.x.x you wanted?
We don’t follow the upstream Debian kernel - that has its own limitations, and we wouldn’t have hardware acceleration.
Sam
That’s correct. We are working on upstreaming support for the Vero 4K/4K+ to improve longevity. There will be a post about support commitments soon.
However we have a long way to go before feature parity can be achieved. Users can use a mainline kernel now but won’t have full hardware video acceleration capabilities
I notice VC-1 videos are playing with hardware acceleration on my Pi 3B+ again. Is that a new thing in this release, or did I just miss the change in an earlier one?
This is indeed an improvement with the new release – but it is limited to Pi models < Pi 4. I didn’t list it to avoid confusion.
this worked - a second apt update && apt full-upgrade, and I got bullseye.
The full upgrade process worked really smoothly on RPi4. I only needed to tweak a few python scripts I run in the little server and all back in business.
I noticed we are still using kernel 5.10(.78). I guess this one is supposed to be rock solid - it seems it is