The servers for both Destiny 2 and the original Destiny are offline for the next 12 hours. According to Bungie, the studio is preparing the game for the new cross-save feature coming later this summer. Both games will be unavailable to play on Thursday, June 27 from 10 a.m. ET to 10 p.m. ET.

It’s unclear why Bungie is also taking the original Destiny down for maintenance. The studio has yet to announce any kind of connectivity between the first and second game. However, all Bungie accounts are already connected. While it’s possible that the studio could add some connectivity between the two games, downtime for the original Destiny may be required for Destiny 2 to have cross save.

Like with all maintenance, the Destiny companion app and all third-party apps like Destiny Item Manager and Ishtar Commander are unavailable. The API will return and re-enable these features shortly after the game servers come back online.

Cross save will allow players to migrate their main accounts between PlayStation 4, Windows PC, and Xbox One. Google Stadia won’t join the Destiny family until it launches in November of this year.

Update (6 p.m. ET): Bungie said Destiny and Destiny 2 services are back online as of 5 p.m. ET, but warned that some players “are experiencing sign-on issues.” Bungie says it’s investigating.