Thanks to arhag one more last minute fix was discovered and checked in.

I apologize to anyone who updated in the past 6 hours.  It is a trade off between making the hyper vigilant update twice now, or everyone else update twice later.  This way we save long-term hardforking code.

exchanges have been notified, witnesses too.

Those of you familiar with BTS know that witnesses can handle emergency bug-fix hardforks with less than 12 hours of notice.