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Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →

class method

Zlib.zlib_version

() -> ::String
zlib_version

Returns the string which represents the version of zlib library.

See also .inflate .gzip also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0