Apple has released iOS 13.1.2, iPadOS 13.1.2, and watchOS 6.0.1. The first two contain bug fixes and minor improvements.
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You can download the first two on your iPhone or iPad by going to Settings > General > Software Update.
watchOS 6.0.1 fixes a glitch in which the Mickey Mouse and Minnie Mouse watch face wouldn’t speak the time, as well a problem where the calendar complication didn’t display events properly. To download the update, go to the Apple Watch app on your iPhone, then tap the My Watch tab. Choose General > Software Update.