The non-forked zlib hasn't been accepting optimisations: https://github.com/madler/zlib/issues/346 https://github.com/madler/zlib/issues/346 Hopefully changes

The non-forked zlib hasn't been accepting optimisations: https://github.com/madler/zlib/issues/346 https://github.com/madler/zlib/issues/346 Hopefully changes will be merged from my obscure private fork into four other obscure private forks (zlib-chromium (https://crbug.com/1354990 https://crbug.com/1354990), zlib-ng, zlib-cloudflare, and the one I personally care about, which doesn't take pull requests, zlib-apple), and possibly incorporated into libdeflate. That's the point of the blog post - to help maintainers understand the changes.