KDE Gear is the new name for the app (and libraries and plugins) bundle of project that want the release faff taken off their hands. It was once called just KDE, then KDE SC, then KDE Applications, then the unbranded release service and now we’re banding it again as KDE Gear.
We’re working on an announcement now for 21.04 so if you have a project being released as part of KDE Gear send us your new features on this merge request.