FOR POOL OWNERS!!!
Some internal processes will be changed after January 30 00:00 (UTC), so please update your wallet before then!
The PoW algorithm will remain yespowerR16, but the block header hash will be changed to SHA256 as in Elicoin/yescriptR16. Therefore, some configuration changes may be necessary depending on the mining pool system.
One yiimp pool administrator said that just updating yentend should be enough, but it looks like some configuration changes may be necessary for nomp pools.