v2.1.0 features: * support for draft-ietf-acme-ip-06 (thanks @orangepizza for impl, @felixfontein for bug fixes!) * issuer/intermediate key/cert are accessible over HTTP (thanks @adferrand!) * support for specifying EE cert OCSP Responder URL (thanks @adferrand!) * support for creating and offering alternative cert. chains (thanks @felixfontein!) * -strict support for rejecting legacy JWS requests misc: * CI release asset publication pipeline (thanks @adferrand!) bug-fixes: * wfe: unlocking order in updateChallenge after read (thanks @dopey!)