The official website of the Ethereum Foundation released a mainnet merger announcement, stating that the Epoch of the Bellatrix fork of the Ethereum mainnet is 144896, and the TTD (Terminal Total Difficulty) of the mainnet is tentatively set at 58750000000000000000000. The testnet is being decommissioned and the operator will be shut down on September 6th. In addition node operators must run both the execution layer client and the consensus layer client in order to remain on the network during and after the merge; in the meantime, all merge-related bug bounties are increased by 4 between now and September 8th Double rewards, up to $1 million for critical vulnerabilities.