Destiny 2's cross-save functionality has launched, arriving ahead of the approaching Shadowkeep expansion and free-to-play New Light version, both of which will be available on October 1. Cross-save is a system that will let you import your Guardians, your stats and your progress between the PS4, PC, Xbox One and Google Stadia versions of Destiny 2, so you can keep going even if you decide to switch platforms. Bungie has posted a helpful guide to cross-save, explaining everything you could need to know. We've also summed it up below for your convenience, but the bottom line is, cross-save is great (once you get it working).

What time does cross-save release?

Cross save functionality will begin rolling out on August 21. Update: Maintenance related to cross-save has been delayed, and Bungie has now issued a new launch time for cross-save. It's still coming today, but a few hours later than previously announced. You can see the new times below. [Update 2: Cross-save is now officially live. You can go to Bungie's cross-save website to now authenticate each of your accounts before deciding which one will be your "active" account. Some players have experienced issues during this process, but once you're through that, it appears to be working as intended.]

Which platforms does cross-save support?

All of them: PS4, Xbox One, and PC all work right now, and the upcoming Stadia version will support cross-save too.

Does this mean that you can play with friends on other platforms?

Unfortunately, if you're playing on PlayStation 4, you still can't play with your friends on Xbox One; this is cross-save, not cross-play. However, it means that if you jump over to the Xbox One version in this scenario, you won't need to start a new character.

Can cross-save be used to merge Guardians or Collections built up between different platforms?

No. If you've already played through the game and maxed out two characters on two systems, there's no way to bring those characters together onto the same account, unfortunately. It's a matter of picking a primary account and porting your save over to other systems. The same goes for Silver, so be aware of that.

Do previous purchases transfer between systems?

No, unfortunately. While your gear and items move between platforms, your expansion content and Silver do not. As a result, you'll need to spend Silver on the platform it was purchased on. Additionally, certain paid DLCs--Forsaken, the Annual Pass, and the upcoming Shadowkeep--will need to be purchased on each platform where you want to access its corresponding content.

Can I disable cross-save?

If you want to do so - because, perhaps, you decide you prefer to split your save files between systems - you can. Once you do so, though, there's a 90-day wait to re-enable cross-save. This is done to discourage account recoveries by other players.

How much does it cost?

It's completely free! When the New Light free-to-play version of Destiny 2 drops, you'll be able to comfortably transfer your Guardian and everything you own between systems without spending a cent. However, as noted above, you won't be able to access certain content without buying the corresponding expansion on each platform you want to play it on. New Light will allow you to access the base game and first year of DLCs, but you'll be restricted from taking part in, say, the Menagerie or Shadowkeep's new Raid.

What impact will this have on my clans?

Your active account can only be included in one Destiny clan, which will become your clan across all platforms you're playing from that account on. Your Active Account takes up one player slot in your Clan Roster, though, regardless of how many systems the account is active on. You'll also only have access to Clan teammates who are on the same platform as you at any given point. Clan objective progress carries over between systems, though.