Priority levels of Issues (Bugs and Features)

These are bugs that hold back a release

Critical

When a bug breaks all core or renders a popular function unusable. Possible examples: sessions, bootstrap one of the form elements or the ability to create a new node. These are to be fixed immediately because Drupal HEAD is not usable at all.

These are bugs that do not hold a release:

Normal bugs

Just bugs, we could even release with these. Just one functionality. Example: the category filter not working on node admin screen.

Minor bugs

Cosmetic issues, notices etc. Often also referred to as 'tasks' or features.