Ethereum
Glamsterdam: what Ethereum’s Sepolia announcement covers
The Foundation’s announcement schedules a testnet upgrade, with mainnet timing still separate.
A testnet milestone
The Ethereum Foundation’s September 28 announcement scheduled Glamsterdam on Sepolia for October 6, 2026, at 13:53:36 UTC. It identifies proposer-builder separation and block-level access lists as headline changes.
The announcement does not set a mainnet or Hoodi activation date. This summary records the published schedule and does not independently confirm activation.
