Apple has just released to developers the third beta versions of iOS 13.3 (compilation 17C5046a) of iPadOS 13.3 (idem), from macOS Catalina 10.15.2 (19C46a) of watchOS 6.1.1 (17S5446a) and the tvOS 13.3 (17K5445a).
We have highlighted some news / changes in the early beta post, including the return of the Usage Time Communication Limits and the RAM management bug fix that has already landed for everyone with the iOS / iPadOS 13.2.2.
One thing we have not commented on yet, regarding the tvOS 13.3, that it will bring back an adjustment so that users can place the following contents (Up next) back top bar of the operating system as highlighted by 9to5Mac.
O Safari iOS / iPadOS 13.3 also supports NFC, USB, and Lightning FIDO2-compatible security keys. This will make Ma's mobile browser compatible with accessories like YubiKey, equipped with Lightning connector, which can be used for even more secure two-factor authentication. When using such a key, you do not even need to enter the code since everything is done automatically and securely.
We'll stay tuned if they paint more news on the betas released today, of course.