Windows 8.5

Windows 8.5 is a never released Windows version created in 2018. 
This version was created when Windows 8.5 was the planned name, but switched to Windows Graphane, as it was even better than this version. Microsoft planned to release the versions separately, making it release 2 versions altogether. 
=== Preceded by ===
Windows 8.4
=== Succeeded by ===
Windows 9