Historical retrospective · Ethereum
Homestead marked Ethereum’s first major mainnet upgrade
Homestead activated at block 1,150,000 in March 2016 and included protocol and networking changes that prepared the chain for further upgrades.
A scheduled hard fork required node operators and miners to install compatible client software before the activation point.
The upgrade demonstrated a repeatable coordination process for changing Ethereum’s shared execution rules.
Planned upgrade windows create obligations for client teams, infrastructure providers and application operators—not only end users.
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