Ethereum Schedules Glamsterdam Upgrade for Hoodi Testnet

Ethereum’s Glamsterdam upgrade is scheduled for the Hoodi testnet, the next testing stage after its activation on Sepolia on October 6. The Ethereum Foundation says the upgrade advances Ethereum’s Layer 1 scaling roadmap, but the announcement does not specify a Hoodi activation date or a mainnet rollout date.

Glamsterdam includes enshrined proposer-builder separation, block-level access lists and changes to gas pricing intended to better reflect the cost of executing transactions and growing Ethereum’s state—the data the network must maintain.

What is Ethereum testing on Hoodi?

The move to Hoodi extends Glamsterdam’s testnet rollout beyond Sepolia. The planned changes address how blocks are built and how the network accounts for execution and stored data. In practical terms, they are protocol-level work aimed at scaling Ethereum itself, not a new feature for a particular app or token.

The announcement names the upgrade components but does not provide further implementation details or a timeline for Hoodi activation. Developers and infrastructure providers will need to assess the changes in testing before any mainnet decision.

What does this mean for Ethereum users?

For ordinary users, a testnet schedule does not immediately change how Ethereum transactions work. Glamsterdam is still in testing, and there is no mainnet date in the announcement. The specific next milestone is Hoodi testing; its results and any further developer announcements will help clarify when the upgrade could move closer to production.

This follows the Sepolia step announced earlier, which also left the mainnet date unset. The useful signal for users is therefore progress through test networks—not a confirmed date for cheaper transactions or a change they need to make now. The earlier Sepolia schedule set that first October 6 milestone.