Ethereum's next upgrade just tripled a test network's block budget, and almost nobody used it.
📌 What happened
Per CoinDesk, Glamsterdam activated on the Sepolia testnet on October 6. By Thursday the gas limit per block was close to 200 million, up from about 60 million. CoinDesk sampled more than 25 consecutive blocks and found each used roughly 52 to 92 million gas, so 26% to 46% of the allowance.
🔍 Why it matters
• Glamsterdam formalises the handoff between block builders and validators, giving validators more time to verify, and adds access lists so clients can prefetch data and check unrelated transactions in parallel.
• Gas charges for creating and accessing stored data change, so a threefold budget does not mean threefold throughput. Developers have been told to retest apps that assume fixed gas costs.
• Finality held: during a six-minute window all 32 scheduled blocks were proposed and 99.97% of eligible stake voted, per ethPandaOps data cited by CoinDesk.
👀 What to watch
• Hoodi, the next testnet, is pencilled in for October 27 pending Sepolia results. Mainnet has no date yet.
• The risk: empty capacity on a testnet says little about mainnet behaviour under real demand, and repriced storage could break contracts that worked before.
💬 Does a bigger block budget change how you value $ETH, or is it just plumbing?
#Ethereum #Glamsterdam
📌 What happened
Per CoinDesk, Glamsterdam activated on the Sepolia testnet on October 6. By Thursday the gas limit per block was close to 200 million, up from about 60 million. CoinDesk sampled more than 25 consecutive blocks and found each used roughly 52 to 92 million gas, so 26% to 46% of the allowance.
🔍 Why it matters
• Glamsterdam formalises the handoff between block builders and validators, giving validators more time to verify, and adds access lists so clients can prefetch data and check unrelated transactions in parallel.
• Gas charges for creating and accessing stored data change, so a threefold budget does not mean threefold throughput. Developers have been told to retest apps that assume fixed gas costs.
• Finality held: during a six-minute window all 32 scheduled blocks were proposed and 99.97% of eligible stake voted, per ethPandaOps data cited by CoinDesk.
👀 What to watch
• Hoodi, the next testnet, is pencilled in for October 27 pending Sepolia results. Mainnet has no date yet.
• The risk: empty capacity on a testnet says little about mainnet behaviour under real demand, and repriced storage could break contracts that worked before.
💬 Does a bigger block budget change how you value $ETH, or is it just plumbing?
#Ethereum #Glamsterdam