The release of ethereum 2.0 will altogether remove the proof-work-mining structure in favour of staking . This will make the traditional system of mining obsolete, and miners will have to move to staking if they want to validate transactions for block rewards and transaction fees.
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Ethereum is implementing an upgrade called Arrow Glacier. This will delay to June 2022 the onset of a “difficulty bomb” that could halt mining of the Ether (ETH) token. Ethereum is shifting from a proof of work to a proof of stake model.9 Ara 2021
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