Ethereum's Glamsterdam upgrade has entered final testing, bundling ePBS and a 200 million gas limit ahead of an expected second-half 2026 mainnet launch.

Developers are entering the final stretch of work on Glamsterdam, the network's next major upgrade, as teams begin testing a version of the fork in a closed environment.

Ethereum's Glamsterdam hard fork enters final testing with ePBS and block-level access lists confirmed on multi-client devnets ahead of public testnet