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Glamsterdam

TestnetsTarget: 2026

The next major upgrade after Fusaka, featuring Enshrined Proposer-Builder Separation (ePBS) and Block-Level Access Lists (BALs).

Meta EIP: EIP-7773🐻‍❄️Mascot: Polar Bear(EIP-7773)Gloas (CL) + Amsterdam (EL)(EIP-8133)

About Glamsterdam

Ethereum developers are preparing for the next major network upgrade, Glamsterdam. It introduces key changes to both the Execution and Consensus layers on mainnet. Candidate EIPs are being fine-tuned, implemented, and tested on devnets as the scope firms up.

Canonical Meta EIP: EIP-7773— Official specification track & scope container for Glamsterdam.
Name Origin: Derived from Gloas (CL) and Amsterdam (EL)— per Hardfork Naming Conventions (EIP-8133)
🐻‍❄️
Upgrade Mascot: Polar Bear— Mascot specified in the EIP-7773 Glamsterdam Meta EIP.(EIP-7773)

Headliners

The defining features this upgrade is built around.

EIP-7732

Enshrined Proposer-Builder Separation (ePBS)

Consensus-layer headliner: separates block proposal from block building at the protocol level.

EIP-7928

Block-Level Access Lists

Execution-layer headliner: enables parallel transaction execution and faster validation.

No EIP composition data yet for this upgrade.

EIP Composition Timeline

Track EIP inclusion stages for Glamsterdam

INCLUDED
SFI
CFI
PFI
DFI
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Recent changes

Every time an EIP entered, left, or moved stages in this upgrade.

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