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Sprinter co-founder Greg Markou says Ethereum upgrades are hard to test: he unknowingly broke nearly every app after EIP-1559 with a web3[.]js update "One of the big problems…

Laura Shin
Published: 2026-11-11 22:31 UTC
Collected: 2026-11-12 01:25 UTC
Original language: Not supplied by source
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Sprinter co-founder Greg Markou says Ethereum upgrades are hard to test: he unknowingly broke nearly every app after EIP-1559 with a web3[.]js update "One of the big problems, though, is this thing's…

Sprinter co-founder Greg Markou says Ethereum upgrades are hard to test: he unknowingly broke nearly every app after EIP-1559 with a web3[.]js update "One of the big problems, though, is this thing's a beast, like an absolute monolithic beast. Changing stuff is really hard to find the invariants." "That's why the testnets exist, but in all honesty, it's not straightforward to say, 'Oh yeah, this will break every contract that we have out there.'" "I broke web3[.]js and I was maintaining it years ago and bricked like every app post 1559. I did that and I didn't know." "There was like an invariant with MetaMask and I was just unaware that this was going to happen. It's hard to test these things."

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Laura Shin · Published 2026-11-13 12:26 UTC

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