Glamsterdam update is a 2026 Ethereum upgrade focused on performance enhancements such as gas optimizations and protocol-level efficiency improvements.

Quotes that support claims

The Glamsterdam update is still in early design stages and focuses on gas optimizations and protocol-level efficiency improvements, essentially making Ethereum faster and cheaper to use.

This upgrade, dubbed the Glamsterdam upgrade, is slated for 2026, and it will be built on Fusaka, a prior enhancement rolling out.