Quoting myself from 3.14 release · Issue #6579 · supercollider/supercollider · GitHub
SuperCollider 3.13.0 was released in February of 2023 and since then we had some great additions, fixes and improvements which are probably useful to distribute them to a wider audience through an official release.
Having the SuperCollider symposium on 13-15 March 2025 labelled The Future of SuperCollider, I’d propose to use this event as an opportunity to release the next major version, which would be
3.14.0
Currently I consider the feedback on the GH issue too sparse in order to give the endeavor a go as bundling a release can only be a group effort. As the timeslot towards the symposium is getting smaller, I thought about asking once more a broader audience here before deciding to let the opportunity pass and push the release to a later date.
On a more general note: If you want to contribute to SC you can have a look at the development board at SuperCollider development · GitHub about what needs to be done on existing PRs. I always try to keep the board up-to-date.
We are also always in need of people who test and review features! Do not hesitate to simply start commenting on PRs, see Reviewing proposed changes in a pull request - GitHub Docs and Reviewer instructions · supercollider/supercollider Wiki · GitHub on the how-tos of the procedure. Even if you are not in the reviewer group yet, you can already comment and test PRs.