This update does not break Luma3DS (critical titles weren't updated) but it does likely fix recent exploits, since Internet Browser and SAFE_MODE SSL module were updated.
https://yls8.mtheall.com/ninupdates/reports.php?date=2021-07-27_00-00-33&sys=ctr
https://yls8.mtheall.com/ninupdates/reports.php?date=2021-07-27_00-00-37&sys=ktr
https://yls8.mtheall.com/ninupdates/reports.php?date=2021-07-27_00-00-33&sys=ctr
https://yls8.mtheall.com/ninupdates/reports.php?date=2021-07-27_00-00-37&sys=ktr