Ethereum's Next Major Upgrade Could Render Some Developer Tools Obsolete — What You Need to Know

The Ethereum Foundation has issued a warning ahead of the planned Glamsterdam network upgrade, noting that the changes could disrupt some existing developer tools and infrastructure. The upgrade, which introduces key protocol improvements, is expected to enhance scalability and security but may also require updates to wallets, APIs, and other software that interact with the network.

What's at Stake?

Developers relying on legacy tooling — particularly those using deprecated JSON-RPC methods or custom node configurations — are most at risk. The foundation recommends reviewing the full upgrade specifications and testing against the latest testnet before the mainnet activation.

Key action items for developers:

• Update any hardcoded gas limits or block parameters that may change with the upgrade.
• Check that your node client supports the new EIPs included in Glamsterdam.
• Test your decentralized applications on the Sepolia testnet fork as soon as it is available.

While the transition is expected to be smooth for most users, the foundation stresses that proactive preparation can prevent service interruptions. The exact mainnet date has not been finalized but is anticipated within the next few months.