Windows 8.1 Preview

An article about pre-release versions of Windows 8.1.

Unlike with other versions of Windows, 8.1 is the only version where the final wallpaper set was introduced in the RTM build.

Builds 9419 to 9483
At this point in development, Windows 8.1's wallpapers are identical to 8's, except that img3 is used as img0, replacing Windows 8's default wallpaper. While it is unknown if the unleaked build 9490 uses the final wallpaper set, the first known build to feature this set is the RTM build, 9600.

Builds 9419 and earlier
At this point in development, Windows 8.1's lock screen wallpapers are identical to 8's.

Builds 9431 to 9483
By build 9431, img100 has been replaced with a new one; with the exception of img105, all of the lock screen wallpapers leftover from Windows 8 (img100, img101, img102 and img103) were reallocated to img101, img102, img103 and img104 respectively, replacing 8's img104.