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Ethereum testnets may miss software issues during upgrades, warns web3.js maintainer.

Protocol Fundamentals
12 Nov 2026, 11:46 WIB
Tokenpost
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Neutral
Ethereum testnets may miss software issues during upgrades, warns web3.js maintainer.

Greg Markou, co-founder and CEO of Sprinter and maintainer of web3.js, highlighted that Ethereum testnets do not catch every software combination issue during network upgrades. He referenced a 2021 incident during the EIP-1559 upgrade where an assumption involving MetaMask went undetected, affecting many applications relying on web3.js. Testnets allow developers to test changes before mainnet deployment, but they may not replicate all real-world wallet, library, and smart contract interactions, leaving some edge cases unnoticed. This underscores the complexity of Ethereum's ecosystem and the challenges in predicting upgrade impacts across connected software.

Ethereum upgrade tests are the subject, providing context from Pluang's market data as of Nov 12, 2026 16:31 WIB. Among 50 major cryptocurrencies, only 13 rose while 35 fell. Notably, Enjin Coin dropped 9.62% to Rp382 with a typical hold time of 106 days, contrasting with EOS which gained 8.13% to Rp12.649 and a shorter hold time of 87 days. Harmony's ONE rose 5.08% to Rp30, showing a longer typical hold time of 153 days and a buy order activity of 59%.

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