The block the miner is attempting to solve is known as the candidate block. If the miner adds new transactions or replaces some transaction in their candidate block, then the Merkle root they calculate will be different and so their block header (the thing they are hashing) will be different. At that point, miners would reset the nonce field to zero.

Also note that the nonce field, being only 4 bytes, can be exhausted in under a second. The miner will then change something else about the block, usually incrementing the extraNonce field in the coinbase transaction, and reset the nonce. This happens constantly while the miner is trying to solve their block.

It doesn't make sense for a miner to update their candidate block every single time they learn of a new transaction, as the pool would need to recompute their Merkle tree every time it does and then send the new block data to all their miners, which has an associated cost to it. How often a pool updates their candidate block is up to the pool, but I imagine most pools would be somewhere in the 5-30 second range.

This is the extraNonce. The nonce is part of the block header.

I have done the sticks
I have done s9's


I have done the Apollo >>>> I still have the Apollo and it almost has paid itself off.

Not familiar with that 2.0 what's the difference of that and how it will make a comeback after the -99% crash? Can you post here the link of the official announcement. I am not sure if they can still make a comeback as many people including me, would literally lose trust on the project how would they encourage previous investors and people who lost all of their investments?