The only difference between this and the last version is that I did
It may not be a difference in what you did. I believe this security problem surfaced recently (but I can't find the link) and therefore the message could be the result of a recent change to PAUSE. Address the issue stated in the message rather than trying to figure out what you did different.
Update: Below, brian d foy posted the aforementioned link I couldn't find: Dealing with World-writable Files in the Archive of CPANDistributions. He also confirmed my suspicions that this is a recent change.