makes unrelated software on the system (or the whole system) break, or causes serious data loss, or introduces a security hole on systems where you install the package

a bug which has a major effect on the usability of a package, without rendering it completely unusable to everyone

Everything related to communication protocols, like XEPs etc.

A collection of issues.

This MR needs a review

Related to purple-matrix plugin

for any feature request, and also for any bugs that are very difficult to fix due to major design considerations