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Altair Upgrade Set to Activate on Ethereum Mainnet This Month

The upgrade represents a “low stakes warm-up” to prepare Beacon Chain developers and client teams for the coming Merge.

Updated May 11, 2023, 3:52 p.m. Published Oct 5, 2021, 4:07 p.m.
A beacon light shining in a starry sky, representing Altair upgrade on Ethereum mainnet
A beacon light shining in a starry sky, representing Altair upgrade on Ethereum mainnet