Dr. Christian Tacke

Do other ci updates from dev need to be backported / chery-picked as well? Like 927b1f2fa3c6f12db6d6c05582c886dc9704813b? And please add the cherry-pick -x footer on "ci: Deduplicate SCM checkouts". :-)

> Hm, how about just a single numbered list instead of heading per step? Hmm. I don't care much. @karabowi added them in > Additional steps that come to mind:...

Added text by @dennisklein Rendered: https://github.com/ChristianTackeGSI/FairRoot/blob/docs-contributing/CONTRIBUTING.md#user-content-creating-a-new-release

@karabowi as you're currently in the process of creating a new release. Can you take another look at this? Maybe it would be good to merge and improve from there...

FairRoot dev has a major CMake rewrite. See the [Chabgelog](https://github.com/FairRootGroup/FairRoot/blob/dev/CHANGELOG.md#190-unreleased---2023-xx-xx). Handling this in R3BRoot in a way that is compatible with FairRoot 18.x and 19.x at the same time is...

Right, the idea is to use exported targets from ROOT with their include paths. So one should only need to properly declare dependencies on ROOT::Core/etc and be done without needing...

### Deprecations in General For me a deprecation means, that 1. All old code stays as it is (as long as it can be considered public API). So we should...

TBH I don't know, what would be the right way forward with this issue. IF we want FairRun to own the eventheader, then we should make `FairRun::SetEventHeader` take a `unique_ptr`....

Maybe we can first simplify (maybe by using std containers) the current mechanics and then it is easier to assess whether we really need FairVolume?

Hi @pavel532, #1212 has been merged and should fix this. Can you take a look?