The developers have eliminated the desynchronization of the Ethereum blockchain and talked about the reasons for the bug
https://ttrcoin.com/razrabotchiki-ustranili-rassinhronizaciyu-blokcheyna-ethereum-i-rasskazali-o-prichinah-baga.13693/The problem was related to a specific type of transaction that was introduced in Berlin. Open Ethereum clients calculated the cost of one such transaction differently from the rest of the network nodes, which is why the whole block of transactions was invalidated by them. As a result, the Etherscan blockchain explorer stopped working, and the BitStamp and Coinbase exchanges temporarily limited the withdrawal of ETH and ERC20 tokens.
“OpenEthereum estimated the price of this transaction with a small error, which caused all further problems (the block was rejected as invalid),” explained Martin Keppelmann, CEO of Gnosis.
According to Go Ethereum developer Marius van der Weyden, the bug was so subtle that it could not be detected during all stages of preliminary testing.
“After installing the update, the Open Ethereum nodes should be able to restore sync without any problems. For example, they don't have to resynchronize from block zero or manually delete a block, ”added Keppelmann.
Based on feedback from users and my experience with transactions that I made today, the commissions on the network have not decreased.
Looking forward to the next hard fork.