Ethereum’s Glamsterdam: Bigger Blocks, Cheaper Calls, and a Dash of Sarcasm

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In the dusty fields of the digital frontier, the Ethereum wranglers have herded the Glamsterdam upgrade into its final corral. They’re test-driving this behemoth on multi-client networks, lugging every tweak and twist slated for what might be the network’s grandest overhaul since the Merge. It’s like watching a barn dance where every coder’s got two left boots, but they’re determined to waltz into the future.

  • Key Takeaways:

  • Glamsterdam hit final devnets on June 16, bundling EIPs like a farmer stacks hay bales before the storm.
  • ePBS and Block-Level Access Lists aim to wrangle MEV abuse and hoist the gas limit to a whopping 200 million per block. That’s a lot of fuel for this digital tractor.
  • Mainnet activation is penciled in for H2 2026, with the next upgrade, Hegota, already waiting in the wings like a restless cowboy.

Final Stretch Before Mainnet

The core developers, those digital cowboys, have saddled up for full-scale testing of a fork that bundles every Ethereum Improvement Proposal (EIP) earmarked for Glamsterdam. It’s the last leg of the journey before the codebase is hardened and shipped to public testnets, with mainnet activation now expected in the second half of 2026. Ethereum Foundation’s Parithosh Jayanthi tipped his hat, saying:

“Probably the largest fork we’ve had since the Merge. It could change a lot of assumptions about Ethereum and set us up for much more scaling.”

The upgrade’s name is a patchwork quilt of two simultaneous changes: the Amsterdam upgrade on Ethereum’s execution layer and the Gloas upgrade on its consensus layer. Both are set to ship in the same hard fork, a pattern the network’s been using since it swapped its horses for proof-of- stake.

What ePBS and Access Lists Change

At the heart of Glamsterdam sit two proposals, as central as the saloon in a Western town. The first, EIP-7732, introduces Enshrined Proposer-Builder Separation (ePBS), pulling the work of building and proposing blocks into Ethereum’s core protocol. It’s like giving the sheriff a new badge to keep the MEV outlaws in check. Developers say it narrows the room for maximal extractable value manipulation, which today relies on offchain relays that stink of centralization.

For validators, ePBS is meant to level the playing field, guaranteeing payment for proposed blocks even when a separate builder assembles them. It trims the leverage that sophisticated players hold over ordinary stakers, dovetailing Ethereum’s wider push toward distributed block building.

The second proposal, EIP-7928, adds Block-Level Access Lists, which let each block declare in advance which accounts and contract data it’ll touch. It’s like a dinner menu for the blockchain, so client software can preload the information and process transactions in parallel. The payoff? Faster, cheaper, and more predictable block execution. It’s the digital equivalent of a well-oiled wagon wheel.

Bigger Blocks, Cheaper Calls

Glamsterdam also brings a sweeping gas repricing, designed to make fees track the real cost of computation more closely. It’s like adjusting the price of hay based on how much the horses actually eat. The gas limit is set to climb from 60 million to 200 million per block, while throughput targets reach toward 10,000 transactions per second (TPS). That’s roughly 10 times what the network clears today-like upgrading from a donkey to a steam engine.

Backers project a 78.6% drop in fees across both simple transfers and complex smart contract calls. High-level compute operations get cheaper, while raw state access gets pricier. It’s a digital Robin Hood, taking from the data hogs and giving to the everyday users.

Those targets would mark a step change for an execution layer that’s long traded raw throughput for decentralization. Cheaper, more abundant block space tends to flow through to lower costs on L2 rollups, which settle their data on Ethereum. It’s the same dynamic that followed last December’s Fusaka upgrade, which widened data capacity for rollups.

Developers have already named the next milestone after Glamsterdam: Hegota. It’s a sign of how quickly the roadmap is moving, though it’s worth noting that Glamsterdam was first penciled in for H1 2026 before developers pushed activation, citing the scale of the changes. No firm date has been locked in, and the testnet phase will set the final schedule. Until then, it’s just the coders, the code, and the endless horizon of the digital frontier.

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2026-06-17 13:57