Apple previews Safari 15 on Big Sur, no macOS beta necessary

Regular as clockwork, Apple will launch the lone Safari upgrade for the year this fall when it rolls out its new version of macOS, aka "Monterey."Mac users can now get a jump on that timeline by grabbing a copy of the preview Apple just made available for Safari 15, which runs on the still-current operating system, "Big Sur."[ Related: 9 steps to lock down corporate browsers ]
While the makers of the other browsers that dominate the web release upgrades every few weeks — Google and Micros