The PKP Web Application Library (PKP-WAL) is a library shared by Open Journal Systems (OJS), Open Conference Systems (OCS), Open Monograph Press (OMP), and Open Harvester Systems (OHS). It is distributed with those applications in the lib/pkp subdirectory.
Issues (bugs) for all of those applications should be created against this repository.
Issues (bugs) for any of the PKP applications should be created here. If you're not sure whether you're encountering a bug or not, consider posting in the PKP Community Forum.
Before creating a new issue, please search the existing ones to make sure you're not creating a duplicate.
Bugs are scheduled against the milestones that a fix will be released in. For example, if a bug was found in OJS 2.4.5, then it will be scheduled against OJS 2.4.6, which is the first release that will include the fix.