Ethereum Glamsterdam Upgrade Successfully Activated on Sepolia Testnet

Key Facts

1The Glamsterdam upgrade was successfully activated on the Sepolia testnet on October 6, 2026.

2The upgrade introduces proposer-builder separation (PBS) and gas pricing changes to improve network efficiency.

The Glamsterdam upgrade was successfully activated on the Ethereum Sepolia testnet on October 6, 2026. According to crypto-economy.com, this deployment represents a critical testing phase prior to the official launch on the Ethereum mainnet.

The upgrade introduces several technical features designed to enhance blockchain performance, most notably proposer-builder separation (PBS) and adjustments to gas pricing. These improvements aim to increase network efficiency and scalability, consistent with the broader Ethereum development roadmap.