>The problem was that it didn't get updated like normal software, it was somehow tied to the OS, so old outdated versions lingered around for far too long, limiting what technologies web developers could use.
Now that mantle is taken up by Safari, especially on mobile.
They're a bit more separated on macOS but still not really separate. On iOS, it's very much tied to the iOS/iPad OS version.
There's perfectly functional iPads out there that are stuck on an iOS version and are thus e-waste as more and more Internet becomes inaccessible to them.
Now that mantle is taken up by Safari, especially on mobile.