Today, after uploading an app to iOS, I got an email from Apple telling me that starting March 2019 the iOS SDK 12.0 isn’t supported anymore. Can I update this SDK without detaching my project? Or is this something that needs to be changed on the build server?
We still have to update our builders. There isn’t anything you can do aside from ejecting. This is a non-blocking issue as it doesn’t take effect until March. We’ll ensure our builders are updated before then.