iOS 13.5 is safe for Jailbreak on iPhone. iPadOS 13.4.5 for iPads also.
As you know, Apple regularly stops signing old versions of Software updates after new builds are released to encourage customers to install the latest iOS versions. However, some users prefer not to update due to the ability to jailbreak older versions of iOS. (How to Jailbreak iOS 13.4 on iPhone, iPad)
As you already know, installing a new beta version of iOS 13.5 or iPadOS 13.3.4 on an iPhone, iPad, or iPod touch couldn't be easier. To do this, just go to “settings” — “basic” — “software update” and click “download and install” at the bottom of this page.
If desired, users can also install the update via iTunes by connecting an iOS 13.4.5 device to their computer. Whichever method you choose, make a backup of your device in advance before installing the update.
If you do not know what to do, we strongly recommend that you do not rush to install the beta version, but wait for the final version and then jailbreak it. Apple's iPadOS 13.5 and iOS 13.5 is safe for Jailbreak on iPhone and iPads