Cash App announced a slate of new features designed to match the ways millions of people manage their financial lives today.

It’s a big update day for users of Cash App, the money-movement service from Block Inc., as a new artificial-intelligence tool, a borrowing service, and cryptocurrency options are added.

WASHINGTON — Cash App experienced a system outage Thursday into early Friday affecting multiple features in the peer-to-peer money sharing app, preventing some from accessing their money. The payment ...