The minimum allowed OS version. If not set, any version of this OS satisfies the constraint. Format: "major.minor.patch" such as "10.5.301", "9.2.1".
The operating system type of the device. Possible values are: OS_UNSPECIFIED, DESKTOP_MAC, DESKTOP_WINDOWS, DESKTOP_LINUX, DESKTOP_CHROME_OS, ANDROID, IOS.
OS_UNSPECIFIED
DESKTOP_MAC
DESKTOP_WINDOWS
DESKTOP_LINUX
DESKTOP_CHROME_OS
ANDROID
IOS