We’re as of yet unable to use the Xcode 11.3 image due to a known issue that prevents XCTest from automating webview text fields, hence breaking our UI test suite. This has been reported by others and is a known issue, although it’s unclear if it’s one Apple is addressing.
A reliable workaround for this issue is to use iOS 13.2 simulators instead of iOS 13.3. The problem being: 13.2 isn’t presently installed in the Xcode 11.3 image. Any chance it could be, at least until we’re able to confirm the issue has been addressed by Apple (likely in a future Xcode release)?