I'm checking the zlib changes file [1] and there are regular gaps of years between versions (but there are times where there are a few months between versions).

I'm checking the zlib changes file [1] and there are regular gaps of years between versions (but there are times where there are a few months between versions). zlib is a very stable library and I doubt the API has changed all that much in 30 years. [1] https://www.zlib.net/ChangeLog.txt https://www.zlib.net/ChangeLog.txt