Mono for Android 4.2.7


Known issue: Immediately after upgrading, users may have trouble loading Mono for Android projects. Please restart MonoDevelop again if you experience this.

Visual Studio Users: You should be prompted with this update when you open a MFA project. You can also check manually in Tools > Options > Mono for Android.

MonoDevelop Users: You should be prompted to upgrade next time you open MonoDevelop, or you can use Help > Check for Updates. IDE support requires MonoDevelop 3.0. Layout Designer fixes require MonoDevelop 3.0.4.

Bug fixes

Web Services, Serialization, and WCF Bug Fixes:

  • 1340 : NullReferenceException when calling WCF service with HTTP method other than GET or POST
  • 4511 : DuplexClientBase Channel Initialization Broken
  • 4993 : Basic Authentication without <serviceCredentials>
  • 5935 : Serialization bug
  • 6041 : wsdl and wsdl2 fails to generate
  • 6187 : Using WebGetAttribute on inherited wcf operations causes ArgumentException in mono-2.10.9
  • 6201 : NullReferenceException using ChannelFactory created with ServiceEndpoint constructor (regression)
  • 6489 : Mono implementation of SoapFormatter behaves differently from .Net implementation
  • 6515 : Custom headers are not included in call to web service
  • 7177 : Non generic derivations of the generic FaultException are not serialized correctly
  • 7299 : DataContractSerializer cannot deserialize ReadOnlyCollection<T>

HTTP Stack fixes

  • 5655 : HttpWebRequest not sending WebDAV headers
  • 5899 : WebClient.DownloadStringAsync seems to ignore QueryString values
  • 6122 : Different resullt from Monotouch and .net code
  • 7200 : HttpWebRequest returns result of a request in another thread
  • 7424 : HTTPWebRequest CookieContainer support not working in MonoTouch 6.0 (vs 5.4)


Warning: Samsung shipped a broken kernel with Android 2.1, which is not able to support JIT compilation. If you possess a Galaxy-class device with Android 2.1, you will get unexpected results, this is caused by a kernel bug that breaks cache coherency, rendering any engine doing JIT compilation useless. Check with your manufacturer/carrier for an Android 2.2 update.

Xamarin Workbook

If it's not already installed, install the Xamarin Workbooks app first. The workbook file should download automatically, but if it doesn't, just click to start the workbook download manually.