Apple has stopped signing iOS 10.3.3 and iOS 11, making downgrades to pre-iOS 11 firmware impossible. The latest iOS version currently available to the general public is iOS 11.0.2.
This Week in Rocket Launches #116
China to send people to space and SpaceX to resupply ISS
Windows 11 Beta Channel fixes issues with SMB, memory leak, NTFS, LSASS
windows 11 insider preview