Skip to content

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

class method

Psych.libfyaml_version

Psych.libfyaml_version

Returns the libfyaml version string. This method is only defined when psych was built with the experimental libfyaml backend (--enable-libfyaml).