MacRumors published a story that Apple has released the fifth betas of iOS and iPadOS 13.4 to registered developers.

Apple Seeds Fifth Betas of iOS and iPadOS 13.4 to Developers

Apple today seeded the fifth betas of upcoming iOS and iPadOS 13.4 updates to developers, one week after the release of the fourth betas and more than a month after the release of iOS and iPadOS 13.3.1.

  Apple Seeds Fifth Betas of iOS and iPadOS 13.4 to Developers