https://wccftech.com/you-can-now-jailbreak-ios-13-5-5-beta-with-unc0ver-5-2-0-update/

unc0ver team has released a new update, version 5.2.0, which can be used to jailbreak iOS 13.5.5 beta on iPhone, iPad, and iPod touch, and even tvOS 13.4 beta 1 on Apple TV HD.

Although it is not recommended to use a beta operating system update as a daily driver, unc0ver 5.2.0 only works with iOS 13.5.5 beta 1. As per unc0ver team, this is the latest signed iOS version which is compatible with unc0ver.