Maybe it's stupid question, but I have to ask. I am mining using new wallet and several other computers I'm on pool mining. Do I need to do anything (as it will be different chain) with wallet or pool mining (start/restart) Should I just leave it both to mine as usual, overnight?
As far I I know you should be fine. The fork should come and go without any interruption to your wallet or mining. The new wallet has been extensively pre-tested on testnet and we were unable to discover any flaws at all. Come 7 more hours we will know for sure!