Have to update a runtime, but how?

Since a few days I get a message when I update flatpaks:

Info: runtime org.kde.Platform branch 5.15-24.08 is end-of-life, with reason:
   We strongly recommend moving to the latest stable version of the Platform and SDK
Info: applications using this runtime:
   info.smplayer.SMPlayer

Next the one mentioned in the message I also have 5.15-25.08 and 6.10.
I have however no idea how to do that. How do I tell smplayer it has to use a newer version of the runtime?
Who can help me?

sorry, see that smplayer still needs it.
Try replacing with the one from Fedora repo.

You could try flatpak uninstall --unused, maybe? To see if smplayer really needs the older runtime?

Only the devs/packagers of smplayer can do that when building the flatpak

Thank you Sergio, I did not think about that. It worked.

Any idea where to report this? Is it at Flathub, that’s where the program came from.

You can report either on Flathub’s issue tracker, against the app’s project, or in the project’s own issue tracker.

A similar issue (EOL KDE runtime) was reported in the past in both places, but discussion took place in the latter.

Such issues are unfortunately often not as easy to fix as to just build the flatpak against the latest KDE runtime. Development work needs to be done, and looking at the comments in the linked bug report, resources for this project are often scarce.

I did find the issue tracker so I reported it. In the mean time I installed the Fedora version of smplayer and it works, so my direct issue is taken care of.