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)

Previous Upgrades

Historical (16 Forks)2015–2024

Frontier (2015) through Dencun (2024), including The Merge, Shapella, London, and early forks.

Pectra

Live2025-05-07

Account abstraction for EOAs, validator UX overhaul, and doubled blob throughput.

Fusaka

Live2025-12-03

PeerDAS-powered blob scaling, a 60M gas limit, and Blob Parameter Only forks.

EIP-7594

BPO1

Live2025-12-09

Blob Parameter Only 1: Raised blob target to 10 and max to 15.

BPO2

Live2026-01-07

Blob Parameter Only 2: Raised blob target to 14 and max to 21.

we are here

Glamsterdam

Testnets→ 2026

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

EIP-7732 +1 more

Hegotá

Scoping→ 2027

The network upgrade following Glamsterdam, anchored by FOCIL for consensus-layer censorship resistance and statelessness groundwork.

EIP-7805 +1 more

How hard each EIP is to test, from the STEEL team's published complexity assessments (0 of 0 EIPs assessed — scores sum ~24 testing anchors; <10 Low, 10–19 Medium, ≥20 High), alongside live test-module counts from execution-spec-tests (0 with tests).

EIP	Stage	Complexity	Score	Tests	Assessment

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Glamsterdam