The OBS project keys for the KDE:* (but not KDE:Extra!) and KDE:Unstable:* projects still use DSA1024 as algorithm and need to be recreated using RSA4096. This means that if you use e.g. KDE:Qt5, KDE:Frameworks5, KDE:Applications or KDE:Unstable:Qt, KDE:Unstable:Frameworks, KDE:Unstable:Applications, KDE:Unstable:Extra, you will have to accept the new sign keys. Due to the design of OBS we can't provide the fingerprints in advance. After the switch, they will be visible on these pages:
When zypper asks whether you trust the new keys, you can compare the fingerprints with the ones on those pages. Only import the keys if they compare equal.
Upstream Plasma is moving towards Qt 6 in the master branch  and thus a large disruption is expected for some time. We have switched Plasma 5 packages in KDE:Unstable:Frameworks to build the Plasma/5.27 branch. Users of this repo will see downgrades of those packages which also means that some smaller features which were only present in the master branch will disappear. Once ready, KDE Frameworks 6 and Plasma 6 packages will be delivered by this repo next to the existing Qt 5 based versions. KDE:Unstable:Applications is not affected for the time being, those still track the master branch.
Have a lot of fun,
the openSUSE KDE maintainers