Sooner than expected the sourcecode and GNU-Linux binaries have been released. Version 1.3.1 [build 3] are ready to go, way before block 300K. The WinX and MacX binaries are not available yet. And there are bounties, to be payed in SLOTH, for whoever builds them in time.
There were some minor hickups, like losing the sourcecode changes, but now it is ready to go. The changed reward system kicks in at block 300K and the Qt-wallet and deamon have been tested on Ubuntu GNU-Linux. Starting fast, getting the blocks in at full spead and even mining very well.
The QR-code has been fixed, less warnings during build and some other minor changes have been done. The change from block 300K has been made conditional. It needs consensus of the network though. That means that all current 1.3.0 versions need to update to 1.3.1 to get it really going from block 300K.
Remember to ALWAYS backup your current Wallet before changing to version 1.3.1 [build 3]. Better even do two Backups, on different media, like a USB stick or SD-card.
May the Sloth be with you!