Key Highlights
- Ethereum’s Glamsterdam upgrade went live on the Sepolia public testnet on October 6.
- The upgrade includes 18 core EIPs and seven other EIPs, according to Ethereum community contributor Pooja Ranjan.
- Developers, projects, and infrastructure providers can use Sepolia to test compatibility with the proposed network changes.
Ethereum’s Glamsterdam upgrade is now live on the Sepolia public testnet, moving another set of proposed protocol changes into public testing ahead of a potential mainnet deployment.
In an X post on October 6, Ethereum community contributor Pooja Ranjan announced the Sepolia activation, saying the upgrade includes 18 core EIPs and seven other EIPs.
The Sepolia deployment allows developers, projects, and infrastructure providers to test their applications and systems against the proposed changes and identify compatibility issues before any mainnet rollout.
Ethereum’s roadmap describes Glamsterdam as a combined execution- and consensus-layer upgrade focused on transaction processing, block construction, and management of the network’s growing state database.
Glamsterdam moves to public testing
Ranjan described the Sepolia activation as another test of Ethereum’s public infrastructure and said the upgrade is open to projects, developers, and infrastructure providers.
Ahead of activation, she asked node operators to update both their Execution Layer (EL) and Consensus Layer (CL) clients. Ranjan also pointed to Ethereum’s September 28 Glamsterdam testnet announcement and related client releases for upgrade details.
The Sepolia activation follows earlier client preparation, including updates from Ethereum client teams ahead of the testnet fork.
Glamsterdam targets higher throughput
The Glamsterdam upgrade is expected to include changes aimed at improving Ethereum’s capacity and efficiency.
Ethereum researcher Toni Wahrstätter said Glamsterdam will bring the network’s “biggest throughput increase since launch.”
The statement highlights the focus on increasing how much activity Ethereum can process, although the final network-wide impact will depend on the changes that make it through testing and eventual mainnet deployment.
Ethereum co-founder Vitalik Buterin also commented on the broader performance work around the network, saying, “Nethermind continues doing excellent work and making Ethereum more efficient and faster.”
The comment came as Ethereum clients and infrastructure teams continued preparing for the Glamsterdam changes.
Developers can test changes on Sepolia
The Glamsterdam activation gives developers and infrastructure providers a public environment to test applications, smart contracts, and network infrastructure against the proposed protocol changes.
Teams can use the testnet to identify compatibility problems and assess how their software responds to changes before a potential mainnet deployment.
Earlier reports tracked Glamsterdam preparation
The Sepolia activation follows earlier Crypto Times reports on the upgrade’s testing schedule and client preparation.
On September 29, The Crypto Times reported that Ethereum had set October 6 for the Glamsterdam activation on Sepolia. The upgrade combines Amsterdam changes on the execution layer with Gloas changes on the consensus layer.
On October 6, Prysm released version 7.2.1 about 16.5 hours before the Sepolia fork, after version 7.2.0 left validators with a default 60 million gas limit, while Glamsterdam was being tested with a planned 200 million gas limit.
Mainnet deployment comes after further testing
Glamsterdam is not yet live on Ethereum mainnet.
Sepolia is one stage of Ethereum’s broader testing process, and further evaluation will be required before the upgrade can move to mainnet. One X user estimated that mainnet activation could follow within five to nine weeks, but that timeline is not an official Ethereum estimate.
The Ethereum Foundation has not announced a mainnet activation date for Glamsterdam. For now, the upgrade remains in the public testing phase on Sepolia.
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