Added in 1.9.0

$os

Returns the version number of the operating system.

The reply can be XP, 2003, 2003R2, Vista, 2008, 7, 2008R2, 8, 2012, 8.1, 2012R2, 2016, 10 0r 11.

Properties

.major - Returns the os major version. (returns wrong in windows 11)
.minor - Returns the os minor version.
.build - Returns the os build number.
.platform - Returns the os platform.
.type - Returns the os type.
.spmajor - Returns the os service pack major version.
.spminor - Returns the os service pack minor version.
.suite - Returns the os suite.