The Unc0ver tool team will update it to support the new iPhone 11 and iPhone XS. It is important to note that the tool will only support iOS 13.3, but not iOS 13.3.1.
If you plan to install a jailbreak on your iPhone, but have already updated it to iOS 13.3.1, then roll back to iOS 13.3 as soon as possible, while this is still possible. The tool will only support iOS 13.3, so you should have this version, not a newer or older one. The Unc0ver development team uses the new tfp0 exploit to jailbreak iOS 13.3. Cydia is already working properly on A13 devices, so in this regard, everything is moving perfectly.
Like Checkra1n, the Unc0ver jailbreak for iOS 13 – iOS 13.3 will be semi-linked, so you will need a computer to install it. However, this is a very small inconvenience that is definitely worth it.