Crypto

Ethereum Sets Date for Public Test of Glamsterdam on Sepolia

Guavy AI Editorial Team Published September 29, 2026

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The Ethereum Foundation has set an official date for the public test of Glamsterdam on Sepolia's testnet: October 6 at 13:53 UTC. Node operators have one week to update their clients, or they'll be excluded from the network.

This is a crucial rehearsal before the mainnet, which is still targeted for the fourth quarter of 2026. The update includes ePBS, block-level access lists, and gas pricing adjustments.

For developers, this means updating their execution and consensus clients to the latest versions: Besu 26.9.0, Geth 1.17.6, Reth 2.7.0 on the execution side; Lodestar 1.49.0, Prysm 7.2.0, Teku 26.9.1 on the consensus side.

Prysm validators also need to review their configuration due to a default gas limit increase to 60 million.

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