/dep => {'deprecation': 'true'}
/sun => {'sunset': 'Tue, 01 Jan 2030 00:00:00 GMT'}
/date => {'deprecation': 'Mon, 01 Jun 2026 00:00:00 GMT'}
/succ => {'link': '</v2/succ>; rel="successor-version"'}
/plain => {}
/r/r1 => {'deprecation': 'true', 'sunset': 'Mon, 05 May 2031 00:00:00 GMT'}
/r/r2 => {'sunset': 'Mon, 05 May 2031 00:00:00 GMT'}
