Macos High Sierra 10.13.6 Raw Download |best| Review

: By supporting the H.265 standard, High Sierra allowed 4K video files to maintain stunning quality while reducing file sizes by up to 40 percent

If you are looking for a pre-made raw DMG or ISO file because you cannot use the App Store method, you will likely be looking at Archive.org or reputable tech forums. Macos High Sierra 10.13.6 Raw Download