Apple just released a few minutes ago new updates for the firmware of all your devices. It is not usual for the company to release them all at the same time on the same day, with the risk that its servers may collapse during the first hours.
And the truth is that the explanatory note of each update simply indicates bug fixes and security. Without any news that we can appreciate at the user level. Maybe it's to block the jailbreak that appeared this week? Could be.
Apple has released updates for iOS 13.5.1 and iPadOS 13.5.1, Together with Watch 6.2.6, patches that make minor changes to the iOS 13.5 and iPadOS 13.5 updates released less than two weeks ago. It has also released updates for TvOS 13.4.6 and to HomePod 13.4.6.
Released to the public on Monday, updates for iOS and iPadOS can be installed through the Settings app, by tapping General, Software Update, and then selecting to install the update. Users with Automatic Updates they will go through a simplified process managed by your device. The watchOS update can be managed from the Watch app on the iPhone.
These new updates of iOS 13.5.1 and iPadOS 13.5.1, arrive only 12 days after the release of iOS 13.5 and iPadOS 13.5, and 14 days after watchOS 6.2.5. Those updates were largely centered around COVID-19 changes, including a Face ID tweak that took into account face masks, as well as the Exposure Notification API.
The patch notes for the iOS 13.5.1, iPadOS 13.5.1, and watchOS 6.3.6 updates reveal the content as consisting largely of security updates. Increments in the version number also indicate that they are less in scope, simply for bug fixes or for security purposes.
Apple has also launched a Supplemental Update for macOS Catalina 10.15.5, the fifth update to the macOS Catalina operating system since it appeared in October 2019. The companion update comes a week after the release of the macOS Catalina 10.15.5 update. Also for security reasons.
It is very clear that something very important to security level They must have discovered in Cupertino these days to "patch" all their devices today.