1) Some kind of third-party account (whatever that is) can no longer check (fetch) emails from Gmail via POP. I have a test suite that uses POP to fetch emails from Gmail, so this concerns me.
2) Gmail itself can no longer fetch emails from other email accounts over POP (a feature I had no idea existed).
I guess it means #2. But it took me a long time to figure that out. You'd think a $trillion company could word things better.