The current version of projectm is 2.0.0
which, as far as I can tell, is 9 years old. projectM - Browse /2.0.1 at SourceForge.net
There has been some effort recently to modernize projectm: GitHub - projectM-visualizer/projectm: projectM - cross-platform music visualization. Open-source and Milkdrop-compatible. Especially of note is the effort towards GL ES, which might enable it to work on a raspberry pi?
Would be cool to see it upgraded!
I'm new here, but am happy to make an attempt at the upgrade. Any pitfalls or known incompatibilities I should be aware of?