Category Archives: Technical Bulletin

iOS Hotfix for iOS 9 Preview (Xcode 6)

We are releasing an updated set of builds to the Stable channel in order to address the issues noted in our iOS9/El Capitan Technical Preview blog post. As noted in that post, we feel we’ve completed sufficient testing on the Xamarin.iOS SDK that resolves the issues affecting both 32 and 64 bit apps running on iOS 9. With this new Xamarin.iOS release, you should be able to rebuild and re-submit your apps using Xcode 6 and have them run against iOS 9 previews, ready to prepare them for the fall release of iOS 9. Head over to our developer page to read up on prepping your app for iOS 9.

We will also be posting previews of the Xamarin.iOS SDK that supports Xcode 7 and the iOS 9 APIs soon. Those builds will be distributed via a preview site, and we will have a new blog post up when they are available.


Known Issues 

  • [Xamarin.VS] – Debugging on iOS 9 devices from Visual Studio is not yet supported. 

Products Released

iOS 9 / El Capitan Preview Technical Bulletin

Yesterday Apple released the first previews of both iOS 9 and OS X El Capitan. We are working full-speed to add support for both iOS 9 and El Capitan right now, and we’ll keep you posted as things progress.

For iOS 9, we are investigating an issue that is causing a number of Xamarin apps to crash on startup. As we’re digging into this, the issue seems to be specific to apps that include 32-bit support.

Apple made some dramatic changes to OS X by making /usr/bin read-only, even with root access, so we’re working on making support for Xamarin Studio and the Xamarin Installer available as soon as possible to get up and running on OS X El Capitan.

As always, these are preview builds and we recommend staying with the stable releases of Xamarin and OS X and iOS until we make full support available for these previews available via this release blog and their preview sites.

Update: We have identified two issues that will affect both 32-bit and 64-bit apps on iOS 9. This has been released as a hotfix which you can find more detail on our hotfix blog post.