Patch
These servers provide patch files that are consumed by the patcher and the boot executables.
Console updating #
The PS3 and PS4 versions of the game used to use the same patch system as the Windows version. That changed in 2018 when Square Enix moved to updating through PSN. Trying to contact the patch servers with PS4 patch requests will return a 404. And of course since the PS3 version is defunct, that also doesn’t work.
Note
This documentation is incomplete.