suggestion: reduce the number of branches

[nbehrnd]

While writing, there are 674 branches pushed to the public GitHub instance of the blessed repository. I speculate some/many of them are feature branches already merged into the repository's default branch, which would allow to reduce the overall number to only a few, perhaps in favour of couple additional tags (if deemed necessary).

This came to my mind in a follow up to a discussion about InChIs (link) when I noticed the project's demo page currently uses version 3.9.0-rc.1 by 2025-10-02 while the landing page of the ketcher mentions version 3.12.0 of 2026-03-04 as the most recent one.