Other things being added in this update include features that extend across two console generations. For one, there’s cross-generation Share Play. This means you can let a friend try out your PS5 game on their PS4, and vice versa. Then there’s the Request to Join Game Session option. This allows others to join in your game without you sending out the invite yourself, and you just need to approve their request.
The PS5 is also getting more personalisation options with this update. This includes things like shortcuts to disabling in-game voice chat and adjusting the volumes of individual voice chats. A more interesting one is what SIE calls Game Update Pre-download. It basically allows you to download updates early, if it’s enabled by a game’s dev team.
The PlayStation blog post also mentions new features coming to the PS app in the future, including joining a PS5 game via the app. For a more detailed breakdown of each feature, you can tread them yourself.