release()
public
The release for this version (e.g. 1.2.0.a -> 1.2.0).
Non-prerelease versions return themselves.
# File lib/rubygems/version.rb, line 289
def release
return self unless prerelease?
segments = self.segments.dup
segments.pop while segments.any? { |s| String === s }
self.class.new segments.join('.')
end