As usual, this means the anything compiled against it will automatically depend on it so will have to stay in testing until Qt itself moves. With 6.11, besides the usual private API changes, there is an additional potentially breaking change due to a QWayland native interface version bump. The symptoms may vary from programs not starting to subtle bugs, but the issue can be easily identified by the message "warning: Native interface revision mismatch (requested 1 / available 2) for interface QWaylandApplication" printed in the application's logs. Unfortunately, it is not easy to figure out in advance which applications will be affected. So please test Qt applications thoroughly, and if you notice an affected one, rebuild it with Qt 6.11 in testing and add it to the todo list https://archlinux.org/todo/additional-qt-611-rebuild/[1] to make sure it's moved to stable along with Qt. -------- [1] https://archlinux.org/todo/additional-qt-611-rebuild/