This prevents the 'URGENT: Alert key compromised, upgrade required' message from being displayed.
The message can be ignored as it is totally meaningless, however it can be annoying particularly with the Windows client.
I will update the op tonight or this weekend to reflect this release.
Also, jwflame or maybe coinaday on Reddit, would probably be good to provide shared access to the poptartcat account. Let me know if you're interested.