Another set of payouts is out! Since sendmany transactions are apparently very cheap, the payout minimums have been relaxed to 0.10 BTC daily, or 0.01 BTC after 3 days of inactivity. I could probably even go down to 0.01 BTC daily next time.

Squashed a nasty little bug (wrong variable name at just the wrong place) in the last getwork module update that caused submitted shares to be re-routed to the last pool a user received work from, rather than the actual pool, leading to invalid shares. The final effect wasn't too bad though: the pools quickly fought it out with each other, until btcguild emerged victorious and served most of the shares for the rest of the day while the other pools cooled in the penalty box. With the fix, you should have seen much fewer invalid shares, and better pool rotation.

To anyone complaining about zero efficiency on btcmine - there are three reasons:

• btcmine rounds are "debited" sometime after they are "confirmed". Efficiency will sit at zero for up to an hour until the btcmine money status page gets updated.
• Value of shares decays exponentially. If efficiency is low but non-zero, you are probably looking at old shares in a long round.
• The "money" page is not really synchronous with anything. Multipool makes best effort to guess which round each particular debit applies too, but it isn't perfect. I've checked manually just now, but only found one possible mistake (round 132174 didn't get "debited"). Even manually I cannot sort out how much it should have been worth.
  

But that's all besides the point because we are apparently banned at btcmine, and also at deepbit, bitcoinpool, and possibly slush. In all four cases it appears to have been automatic rather than intentional. Considering how much workload and DoS some of the pools have been struggling with, it may be understandable if their scripts see 20GH/s worth of requests as another DoS attack and block it. As has been predicted, Multipool is being undone by its own success .