FreeGameDev

I happened to have stumbled on this.

https://abi-laboratory.pro/index.php?view=tracker

I was trying to determine how backward compatible a library is. This give that information in a very readable format. (Obviously backward compatibility isn't the only important feature of a library. There are valid reasons to break compatibiliity. This tool doesn't determine if an API is well designed.)

The trouble is you can't search by description and functionality like you can on a repo site. That severely limits the search engine's usefulness. For instance, I would like to find a good alternative to libcurl that dynamically links to whatever SSL/TLS implementation happens to be on the system (no OpenSSL hard links) but this site could not help me find that.

I found libsodium by other means, and it scores pretty highly in there, so that's good(?) I guess.