5/22/2020 Apple released a much anticipated update for iPhones and the initial reports look very positive.
In addition to important COVID-19 contact tracing support (off by default but can/should be enabled in Settings> Privacy > Health > COVID-19 Exposure Logging), Apple has apparently patched a Mail app security vulnerability that affected every iPhone on the planet.
Apple has also tweaked the Face ID algorithms so the passcode field is presented more readily when you are wearing a mask. You can also swipe up from the bottom of the Lock screen to bring up the passcode field when wearing a mask.
More details: https://www.forbes.com/sites/gordonkelly/2020/05/21/apple-ios-135-release-should-you-upgrade-new-iphone-update/
I am updating my iPhone 11 Pro this morning (after running a BACKUP to my computer first!) and will update this post if I notice anything negative.
If you’re new to the concept of contract tracing, here’s a brief explanation: