Unc0ver is a jailbreak. Jailbreaking your device means that you will have the freedom to do whatever suits you best with your iOS device. You can change pretty much anything about your iPhone, and it unlocks so much possibility for you. Jailbreaking a device comes with both ups and downs, but it is worth the try.
For so long, we have all been waiting for the unc0ver jailbreak tool to be released for the newer iPhone devices. They release the jailbreak for Phone XS, iPhone XR, iPhone 11, iPhone 11 Pro, which are running on iOS 13 to iOS 13.3. The one for iOS 13.3 is also good for A12 and A13 devices. We come with great news.
The Unc0ver jailbreak for iOS 13.3 has just been updated to the 4.0.0 version, and it comes with support for the A12 and A13 Bionic processors. It also comes with support for Cydia and for system-wide injection. Saurik has not updated Cydia for the latest processors so that this jailbreak will work with the help of Substitute.
Since this is the first release we are talking about, there are still some issues that need to be fixed. For example, those users who have jailbroken their iPhones by using this were actually not able to download apps. Also, for some, the system crashed, or the jailbreak process failed. They will release an update soon in order to take care of all of these issues.
Right now, make sure to keep in mind that the Unc0ver jailbreak 4.0 only supports A12 and A13 Bionic devices. Also, the Checkra1n jailbreak has full support for iPhone X and all the other older devices that are running iOS 13 to iOS 13.3.1.