• Header normalization and underscore logic used in core HTTP methods now also used in HttpTest header methods. (#331)
• New extension methods SetHeader and GetHeaderValue on HttpRequestMessage and HttpResponseMessage, allowing you to read/write headers without caring whether they're at the message level or HttpContent level. (#331)
• Use AsyncLocal to store HttpTest.Current in .NET Framework 4.6+ (#325)
• BUGFIX: NullReferenceException when disposing FlurlClient constructed with existing HttpClient. (#334)
• BUGFIX: NullReferenceException when setting a content-type header but not actually sending content. (#313)
• BUGFIX: Calls made with FlurlClient.HttpClient result in null entries in HttpTest's call log, causing errors. (#335)
• Better comments on methods that serialize POCOs to JSON. (#312)