Stable Release: Cycle 6 Service Release 3

We are releasing the Stable builds of Service Release 3 on top of Cycle 6 (these have also been published in the Beta channel). Please use the below forum threads to report and monitor issues that may occur, and find any potential workarounds that may exist.

For more information on the changes contained within these builds announced at Microsoft //Build, please check out the official Xamarin blog, and also the Xamarin FAQ.

Note that Alpha channel contains previews for our next feature release, which does not yet contain these changes. New Alpha builds will be available next week.


Products Released


Upcoming Release Dates

Stable – This Release!

Xamarin Studio and Xamarin.VS Stable Hotfix for debugging of iOS 6 & 7 devices

We are releasing updated Xamarin.VS build to the Stable channel in order to address an issue causing iOS 6 & 7 series devices to be missing in the device dropdown.


Issues Addressed 

  • 39508 (XS) / 39655 (VS)  – Fixed an issue causing iOS 6 & 7 series devices to be missing in the device dropdown options. This issue also caused a repeating log error of “set_response_error: handle_get_value GetProhibited”.

Products Released

Alpha Preview 2: Cycle 7

Update 1 – Bumped Xamarin.iOS from 9.8.0.58 to 9.8.0.156. This adds support for Apple iOS 9.3 / Xcode 7.3. 


We are releasing a new Alpha preview of our next major feature release, called Cycle 7. As this is an Alpha build, there are some known issues and the possibility of new issues being found during testing.

Please check out the product release notes to see all the fixes and known issues for this preview, and use the below forum threads to report and monitor issues that may occur, as well as find any potential workarounds that may exist.


Known Issues

  • [Xamarin Studio w/ F# Add-in] – Error when creating an F# Android template on Windows. This should still function correctly on Mac.
  • [Xamarin Studio] – Dragging and dropping a folder from one project to another moves the files, but does not add them to the destination project.
  • [Xamarin Studio] – Breakpoints are not hitting in Xamarin.Mac C#/F# Unified Applications.
  • [Mono Framework] – Mono 4.3 Cryptography.ProtectedData fails to decrypt data from Mono 4.2. As a result, NuGet packages will fail to restore with the error “Data unprotection failed” when a protected NuGet source is configured.
    • Workaround – In Xamarin Studio you will need to add back any NuGet package sources that use password authentication before re-attempting to restore the packages.
  • [Xamarin.VS & Xamarin.iOS] – When deploying WatchKit applications in Visual studio, the error “The file ‘bin\iPhoneSimulator\Debug\WatchKitApp1WatchKitApp.app\WatchKitApp1WatchKitApp’ does not exist” may appear.

Products Released


Upcoming Release Dates

Alpha – March 10th, 2016.

Alpha 2 – This Release!

Beta – March 2016

Stable – Late March / Early April 2016

Technical Bulletin: Android N

We are aware that Google has released the first preview of Android N, and hope to have a compatible preview of Xamarin.Android that works with N available soon.

This first preview will only offer basic functional support, but we plan on releasing further previews in the coming months to add increased functionality based on the new features included with Android N.

Alpha Preview 1: Cycle 7

Update 1 – Bumped Xamarin.iOS from 9.7.0.331 to 9.8.0.43, and Xamarin.Mac from 2.7.0.331 to 2.8.0.42. Both bumps add TLS 1.2 cryptography support.

Update 2 – Bumped Xamarin Studio from 6.0.0.4520 to 6.0.0.4761. Various additional fixes. 

Update 3 – Bumped Xamarin.VS from 99.0.0.1562 to 4.1.0.87. Various additional fixes, corrects version numbering to be in line with previous Xamarin.VS releases. 


We are releasing an Alpha preview of our next major feature release, called Cycle 7. There are a number of new features and bugfixes included in this release, most notably the rollout of the Dark Skin theme for Xamarin Studio. As this is an Alpha build, there are some known issues and the possibility of new issues being found during testing.

Please check out the product release notes to see all the fixes and known issues for this preview, and use the below forum threads to report and monitor issues that may occur, as well as find any potential workarounds that may exist.

NOTESome customers who are using targeting System Mono under Unified, using Classic Xamarin.Mac (XamMac.dll), or PCls may run into build issues or crash on launch. They may want to move off the Alpha channel at this time.


Known Issues

  • [Xamarin.VS] – A build error may occur when trying to build WatchKit Applications in Notification Mode with VS 2015.
  • [Xamarin.VS] – A build error may occur when trying to build WatchKit Applications in VS 2012/2013
  • [Xamarin.VS / iOS Designer] – Interface.Storyboard for WatchKit Applications will not open in VS 2012/2013.
  • [Xamarin.VS / iOS Designer] – Bottom section of the View Controller is appearing white instead of grey.
  • [Mono Framework] – Mono 4.3 Cryptography.ProtectedData fails to decrypt data from Mono 4.2. As a result, NuGet packages will fail to restore with the error “Data unprotection failed” when a protected NuGet source is configured.
    • Workaround – In Xamarin Studio you will need to add back any NuGet package sources that use password authentication before re-attempting to restore the packages.
  • [Xamarin Studio w/ F# Add-in] – Error when creating an F# Android template on Windows. This should still function correctly on Mac.
  • [Xamarin.Mac] – When running the Xamarin.Mac unified template project with the target Framework set to “Unsupported”, the popup “Could not connect to the debbuger” may appear.
    • Potential Workaround – Downgrade the Mono framework version available in our Stable channel.
  • [Xamarin.VS & Xamarin.iOS] – When deploying WatchKit applications in Visual studio, the error “The file ‘bin\iPhoneSimulator\Debug\WatchKitApp1WatchKitApp.app\WatchKitApp1WatchKitApp’ does not exist” may appear.

Products Released


Upcoming Release Dates

Alpha – This Release!

Beta – March 2016

Stable – Late March / Early April 2016

Preview: Xamarin Inspector 0.6.2

We are releasing an updated preview of the Xamarin Inspector for iOS, Android, Mac, and WPF applications. Xamarin Inspector is an interactive tool that you can use to diagnose and prototype changes in your application. The inspector can attach to a live application on any of the supported platforms.


Products Released

Stable Release: Cycle 6 Service Release 2

We are releasing the Stable builds of Service Release 2 on top of  Cycle 6. Please use the below forum threads to report and monitor issues that may occur, and find any potential workarounds that may exist.


Products Released


Upcoming Release Dates

Beta – March 3rd, 2016.

Stable – This Release!

Beta Preview: Cycle 6 Service Release 2

We are releasing an Beta preview of our next Service Release to Cycle 6. Please use the below forum threads to report and monitor issues that may occur, and find any potential workarounds that may exist.


Products Released


Upcoming Release Dates

Beta – This release!

Stable – Early March 2016.

Preview: Xamarin Profiler 0.32

Xamarin Profiler preview 0.32 is now available for download! There have been a number of fixes since our previous preview, which have been noted below.

Please note that the Mac app bundle has been renamed (from XamarinProfiler.Mac.app to “Xamarin Profiler.app”), so the old version needs to be removed before installing this new update, so that Xamarin Studio prompts the user for the new location.


Known Issues

  • No official support for profiling release builds is available at this time.
  • Data sets are correct at the time of collection, but data mining and representation is preliminary. This will improve in future releases.
  • Time instrument not available for Android and tvOS profiling.
  • Support for Xamarin.Mac app profiling is preliminary.
  • Enabling Boehm for iOS builds results in no useful data on devices, as allocations and calls need to be disabled.
  • Performance with large apps has been improved, but is not yet complete.

Issues Addressed

  • 38689 – The details tab should no longer resize and occlude instruments when clicking on any individual instrument.
  • 38302 – You should now be able to properly check the “Only Persistent Object” checkbox, and the “objects allocated” value should properly change.
  • 37908 – Tool tips should now properly appear for trimmed text.
  • 38854 – Activity indicator should now properly stop when profiling is stopped.
  • 38549 – Stack trace information should now properly display when a warning icon is clicked.

Products Released


As with all our preview releases, this is not a product we officially support. If you encounter any issues, we recommend filing a bug in Bugzilla. You can also jump into the discussions on the forum thread posted below.