PPCoin: v0.4.0 release - UI improvement and debug window support - Protocol upgrade of stake modifier for possible future p2pool support - getpeerinfo support - Experimental getblocktemplate support - Bug fixes - For mainnet deployment with upgrade deadline on May 4, 2014 Upgrade: - Mandatory - Protocol version upgraded to 60004 - Protocol switch scheduled for May 5, 2014 - Blockchain redownload not required for timely upgrade - Late upgrade requires blockchain redownload