Hello!
As miners, once the London fork comes out, is there a need to update our miner clients (ie. PhoenixMiner)?
Mining pools will have to update their software. For information, you can follow the twitter feed of your mining pool. Miners do not need to do anything, and say that the profit may not drop much due to the cancellation of the difficulty bomb until December.
Nothing depends on the miners here
I hope the thing about difficulty is true.I mine at Ethermine.org and they have put a public notification in their mining pool page that starting from 5th of August which is supposedly right after the London fork which is programmed for 4th of August,the payout scheme will change again by going to the minimum of 0.01 Ethereum in the main net.It was 0.05 before and right now is 0.10 as a minimum so I think this is a good move from them but I am afraid they are doing so because they think the difficulty will rise after the London fork comes to life.