After a long pause since 2015 project development activities have been picked up recently. The first results are shared on Github through the SP_24_dev development branch.
Besides finishing programming on several new features and fixes part of the upcoming activities will be to screen all pull requests and forks for new code to be added to SP v. 2.4.
Contributions so far are much appreciated even if they may not become part of the new release instantly.
The goal is to have a stable version of SP. 2.4 released in a few months.