As is mentioned in this new post to the phpBB forums, the project is participating in the Google Summer of Code project this year. phpBB is one of the longest running, widely used open source PHP forums software.
With two years of participation under our belt, I am glad to announce that phpBB is once again taking part in the Google Summer of Code (GSoC) program this year. Google's Summer of Code program encourages students to get involved in free and open source software (F/OSS) by pairing them up with experienced mentors in popular F/OSS projects.
If you're interested in working on the phpBB project this year, check out their Ideas page for some examples of things they're wanting to work on. You'll need to be familiar with the git version control system to do the work and will need to apply to be considered for this year's event.