Apple has released iOS 13.5.1, iPadOS 13.5.1, and watchOS 6.2.6. All three are important security updates (they block the ability to jailbreak your iOS device). iOS 13.5.1 and iPadOS 13.5.1 by going to Settings —> General —> Software Update on your iPhone or iPad.
watchOS 6.2.6 can be downloaded for free through the dedicated Apple Watch app on the iPhone by going to General —> Software Update and following the instructions. To install the update, the Apple Watch needs to have at least 50% battery charge, must be placed on a charger, and in range of the iPhone to which it's paired.