Today Microsoft made a new system software update numbered xb_rel_1506.150526-2200 available to members of the preview program, but only to those included in the first wave.
This month, in fact, updates will go out in two waves, so if you still didn’t get this one, it means you’re part of the second.
That said, if you had trouble installing certain games from the disk with the new updates, looks like Microsoft has been on top of the problem, and this patch should fix the issue, as mentioned in the patch notes posted by Program Manager Emily Hanson on the private preview forum:
OS version released: xb_rel_1506.150526-2200
Available: 6:00PM PT 5/27 (2AM GMT 28/5)
- Fixed an issue where certain types of disc-based bundled games would not properly install.
- Please report any issues you discover via the Report a problem feature or in the forums!
As usual, if you’re not part of the preview program, but would like to be, you can mention it in the comments (including your gamertag), and another reader might be able to send you an invite.
Just remember that this is a beta testing program, so you understand and accept the responsibility for any issues caused to your console, since preview members do it to make the launch of each patch smoother for everyone else, and not just to get a sneak peek on future updates.