Full conversation starts here: http://bitcoinstats.com/irc/bitcoin-dev/logs/2012/02/14/5#l2892558
Summary of what was discussed/decided; please correct anything I get wrong: 1. BIP 16 support is at about 34% of hashing power, so we'll continue to ask big pools and miners to upgrade and will re-evaluate support on March 1'st, with a potential switchover date if there is enough support of March 15'th. 2. On February 20'th the protocol changes to include checksums on the initial version messages. version includes an 'addrFrom' field with your IP address, and there are (unconfirmed) reports of NAT routers changing the contents of packets to modify the inside-the-NAT IP address to the outside-the-NAT address. If you've got a router that does that, then the version message checksum will be wrong and you'll be unable to connect. Two things are being done to address this: + A patch that puts the outside-the-NAT IP address in addrFrom. That's a good idea in any case, exposing interior IP addresses was a mistake. There will be either a 0.5.3 or 0.5.2.1 release available for anybody affected. + An alert will be sent next Friday on the main network directing people to a to-be-created bitcoin.org/feb20 web page explaining the issue. 3. The third issue was how to deal with potential chain-splitting attacks involving duplicate coinbase transactions. The general consensus is that in the long-term requiring that the first four bytes of every coinbase be the block height is the best solution, but looking for and 'discouraging' just blocks that have duplicate coinbases is a reasonable short-term solution. There's still some research and thinking to be done on this issue (see the IRC discussion for details), but I expect that the final version of bitcoin-qt/bitcoind version 0.6 will be putting the block height into coinbases that it creates. -- -- Gavin Andresen ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
