Preview: Xcode 9 beta 3, iOS 11, macOS 10.13 support – Preview 1

Today we are releasing the following builds as Xcode 9 Web Preview 1. These versions include preview Xamarin SDK bindings and preview IDE compatibility for Apple’s Xcode 9 beta 3 release.

Note that these are standalone download links that are not published in the Xamarin updater channels. As a result, Visual Studio for Mac and Visual Studio 2015 on Windows will offer “updates” back to the current published updater channel versions when you have these versions installed. You will need to disregard those notifications if you wish to keep using these Xcode 9 support previews.

Any bug reports about these preview Xamarin bindings are much appreciated!


Products Released

Preview IDE compatibility packages for Mac and Visual Studio 2015

  • Visual Studio for Mac 7.1.0.1267
  • Download
  • Xamarin.VS 4.6.0.328 (Visual Studio 2015)
  • Download

Preview IDE compatibility installation steps for Visual Studio 2017 Preview

  • Xamarin.VS 4.6.0.328 (for Visual Studio 2017 Preview)
  1. Ensure that you have Visual Studio 2017 Preview version 15.3.0 Preview 4 installed with the Mobile development with .NET workload. (Note that Visual Studio 2017 Preview installs as an additional version alongside your existing Visual Studio 2017 non-preview version.)
  2. Go to Tools > Extensions and Updates…
  3. Open the Online > Visual Studio Marketplace tab.
  4. Search for Xamarin Updater and press Download
    • Created by: Xamarin
  5. Restart Visual Studio (as instructed).
  6. Go to Tools > Options > Extensions and Updates.
  7. Click the Add button next to the Additional Extension Galleries list.
  8. Under the Name field enter Xamarin Xcode 9 Preview (or another name that you prefer).
  9. Under the URL field type in xvs://xcode9-preview/
  10. Click OK to save the changes.
  11. Navigate to Tools > Extensions and Updates > Updates > Xamarin Xcode 9 Preview and press Update for each item to download all the available updates.
  12. Once all of the downloads are complete, close Visual Studio.  The VSIX Installer program will launch automatically to install the components.
  13. Start Visual Studio again.

Uninstall steps for Visual Studio 2017 Preview

If you wish to switch back from the Xcode 9 support previews to the default Xamarin versions bundled in Visual Studio 2017 Preview, use the Visual Studio Installer to un-install, and then re-install, the Mobile development with .NET (Xamarin) workload.

Beta Release: 15.3 Preview 4

We are releasing the fourth preview of our next major release, called 15.3. This release is our stable release candidate and includes our next preview of Visual Studio for Mac.

Note that this Beta version is a smaller release compared to the current Alpha preview. In particular, it does not include the Xamarin Live Player, Docker, Azure Functions, or Xamarin IoT preview features announced at Build. Please stay on the Alpha channel if you wish to continue to preview those features.

As this is a Beta build, there are some known issues and the possibility of new issues being found during testing. Of course, additional bug reports are still welcome for these preview versions. If you see any suspicious behavior that you wish to report, please file a quick bug.

If you notice an error in this blog post or have trouble downloading one of the installer packages, please let us know in the corresponding forum thread.

Please check out the product release notes to see all the fixes and known issues for this release.


Highlighted Known Issues

  • [Xamarin.VisualStudio] – “Unable to copy file “obj\Debug\App1.dll” to “bin\Debug\App1.dll”. The process cannot access the file ‘bin\Debug\App1.dll’ because it is being used by another process.” and “Exceeded retry count of 10. Failed”.
    • This issue originally appeared in the Xamarin 15.2 release and was fixed in the Xamarin 15.2.2 release. Unfortunately, the fix was accidentally omitted from these Xamarin 15.3 release preview builds. It will be included in the next published set of builds.

Products Released


Installing the Beta and switching back to Stable

You can install this new Beta version or switch back to the current Stable version by changing updater channels.


15.3 Release Dates

Preview 1 – May 11th, 2017

Preview 2 – June 16th 2017

Preview 3 – June 29th 2017

Preview 4 – This Release!