Ethereum Developers Tentatively Schedule Glamsterdam Upgrade for Sepolia on October 6
Key Takeaways
- •Ethereum developers have tentatively scheduled the Glamsterdam upgrade to go live on the Sepolia testnet at 13:53 UTC on October 6.
- •No mainnet activation date has been set, and instability in the test networks could shift the overall upgrade timeline.
- •Difficulties with Devnet-9 have led the development team to begin building a new Devnet-10 test environment.
- •Engineers have identified a significant bug in the consensus layer as well as execution-layer issues tied to EIP-8037.
- •The Glamsterdam upgrade aims to improve Ethereum's functionality and efficiency, with the Sepolia activation serving as a key test before mainnet deployment.

Ethereum developers have tentatively scheduled the Glamsterdam upgrade for activation on the Sepolia testnet at 13:53 UTC on October 6. The timing was reported by CryptoTwitter commentator @WuBlockchain, marking a significant stage in Ethereum’s ongoing upgrade process.
The mainnet activation date has not been determined. Developers are still working to stabilize the test networks required for the upgrade, and issues affecting those environments could alter the broader timeline.
Testnet Development Challenges
The planned Sepolia activation comes as Ethereum’s technical progress remains under close observation. Recent development updates indicate that problems with Devnet-9 have led the team to begin work on a new Devnet-10 environment.
The developers have identified a major bug in the consensus layer, as well as execution-layer issues associated with EIP-8037. Resolving those problems and stabilizing the test networks are key steps before the upgrade can advance toward mainnet deployment.
Ethereum is a blockchain platform that supports decentralized applications and smart contracts. The Glamsterdam upgrade is intended to improve the network’s functionality and efficiency. Its development is therefore being carried out alongside efforts to maintain network reliability during testing.
Next Stage
The activation on Sepolia will provide an important test of the Glamsterdam upgrade under testnet conditions. Developers will also continue evaluating Devnet-10 and the issues identified in the consensus and execution layers before establishing a mainnet schedule.
The upgrade’s mainnet date remains uncertain while this testing and stabilization work continues. Further progress will depend on the performance of the relevant test environments and the resolution of the reported technical issues.
Source: Coinfomania