- ability to specify configuration at startup - ability to set tags for an endpoint - ability to exclude endpoints during startup - ability to specify error response builder func - ability to specify request deserializer func - ability to specify response serializer func - allow any content-type for plain text requests - change error response content type to "application/problem+json" - add ConfigureDefaults() for swagger ui settings - fix issue #21 with swagger gen - reduce allocations during endpoint registration - optimize endpoint setup