Hi! KDE Gear already mostly went through, except a few applications and KDEPIM.
Norbert is uploading KDEPIM / Akonadi 21.08. Please wait for builds to complete their work. In generally be careful. Unstable is much more unstable again, also for other reasons like breaking changes in debianutils. So I strongly recommend to install apt-listbugs, it will warn you in case someone else stumbled upon an issue of a certain severity and reported it already. Anyway, breakage can happen especially in the first weeks after a stable release. You may choose to stay on stable for a month or two and then switch to unstable or testing again. In case you are prepared for a potentially more bumpy ride: Have fun. Best, -- Martin