bronUPDATE 14/4/21: You can now download Sony's big PlayStation 5 system software update - which also contains a couple of previously unannounced features (thanks, The Verge).
There's an option for the PS5 to automatically switch off HDR features when the console detects non-HDR content. 120Hz support for 1080p PC monitors is also now supported.
Finally, there's options to link your console and TV's power - so your TV switches on when you power up your PS5, or your PS5 powers into rest mode when you turn off your telly.
The patch's big announced features - USB storage and cross-generation Share Play - are detailed in full below.