Ethereum's Glamsterdam Upgrade Ends Flat 21,000-Gas Fee, But Reports Disagree on the New Charge

3 min readPublished 18 Aug 2026

Ethereum’s next major protocol upgrade, Glamsterdam, is set to retire one of the network’s oldest constants: the flat 21,000-gas cost for sending ETH. CoinDesk and Crypto Briefing both reported the change on August 18, 2026, citing warnings from the Ethereum Foundation, the nonprofit that maintains the protocol. Both outlets agree on the basic shape of what’s changing. They diverge, notably, on how big the new charge actually is.

What both outlets confirm

Since Ethereum launched, moving ETH from one address to another has cost exactly 21,000 gas units regardless of whether the recipient address had ever been used before, according to both CoinDesk and Crypto Briefing. Glamsterdam changes that. Sending to an account that already exists on the network will still cost 21,000 gas, both outlets report. But sending to a brand-new address — one the network has never recorded — will now trigger an additional charge under a category CoinDesk and Crypto Briefing both call ‘state gas.’

The logic, as both outlets explain it, comes down to what the network has to do with the payment. Paying an existing account only updates a balance Ethereum is already tracking. Paying a fresh address forces the network to create a permanent new record that every node has to store indefinitely. Under the current flat-fee model, both operations cost the same. Glamsterdam splits them.

Both outlets also report that the Ethereum Foundation directed a warning at wallet providers, blockchain trackers, and fee-estimation tools, telling them to stop assuming 21,000 gas is a fixed ceiling for ETH transfers. And both confirm that the Platåberget testnet is the first environment where Glamsterdam’s rules go live, giving developers a place to find bugs before the change reaches production networks.

Where the reporting splits

The two accounts disagree on the size of the new charge, and the disagreement looks substantive rather than a rounding difference. CoinDesk reports the extra cost for creating a new account at 183,600 units of state gas, on top of the base 21,000. Crypto Briefing does not cite that figure at all. Instead, it describes ‘a floor of 200 million gas’ built into the new structure, which it frames as a mechanism to cap overall state growth across the network over time.

Those are not obviously the same thing. A 183,600-unit charge, as CoinDesk describes it, reads as a per-transaction cost added when a new address receives funds. A 200 million gas floor, as Crypto Briefing describes it, reads more like a network-level parameter governing how much state the chain can add in aggregate. Neither outlet’s report explains how the other figure fits into its own account of the mechanism, and neither addresses the other outlet’s number. Readers should treat both as unreconciled until Ethereum’s technical documentation clarifies which — if either — describes the actual per-transfer surcharge users and wallets will see.

Several other details appear in only one report. Crypto Briefing alone names the underlying proposal as EIP-8037 and dates the Ethereum Foundation’s warning to August 17, 2026, with the Platåberget testnet launching August 20, 2026 — three days later. CoinDesk’s account does not cite an EIP number and instead says Glamsterdam switches on for testing ‘Thursday,’ without a calendar date. Crypto Briefing also reports that Glamsterdam bundles in proposer-builder separation, a structural change to how blocks get assembled, and an expansion of maximum smart-contract initiation code sizes — neither of which appears in CoinDesk’s coverage. CoinDesk, meanwhile, is alone in reporting that after Platåberget, the upgrade proceeds to the Sepolia and Hoodi test networks before reaching Ethereum’s main network.

Why it matters

Wallets, exchanges, and fee calculators have treated 21,000 gas as both the floor and the ceiling for ETH transfers since the network launched, according to Crypto Briefing, which dates that launch to 2015. Software built on that assumption will misprice fees or reject valid transactions once the new tiered model takes effect, both outlets warn. The practical exposure falls on infrastructure providers rather than individual users this week — CoinDesk notes nobody sending ETH needs to act immediately — but exchanges processing withdrawals to new addresses, and DeFi protocols running airdrops or payroll flows to fresh wallets, are the kinds of services both outlets flag as needing to update their gas logic before Glamsterdam reaches mainnet.

What’s unresolved

The core open question is whether CoinDesk’s 183,600-gas figure and Crypto Briefing’s 200 million gas floor describe the same parameter, two different parameters within the same upgrade, or reflect an error in one outlet’s sourcing. Neither report addresses the gap. A firm mainnet date for Glamsterdam has also not been reported by either outlet. And CoinDesk’s account of the upgrade never uses the EIP-8037 label that Crypto Briefing attaches to it, leaving the exact proposal identifier unconfirmed across both sources.