Monad MONAD_NINE upgrade is here: significant optimization of memory costs and the addition of a reserve check mechanism

2026-01-22 15:20:11

Abstract generation in progress

【Crypto World】Monad officially announced the “MONAD_NINE” network upgrade plan, scheduled to be activated simultaneously on the testnet and mainnet in the first half of February 2026. This upgrade is quite significant, covering three major core improvements.

Among them, MIP-3 (Linear Memory) changes the EVM memory expansion cost from a quadratic algorithm to linear computation—sounds a bit abstract, but the practical effect is a substantial reduction in resource consumption. It also limits the memory usage per transaction to 8 MB, which can improve system predictability and give developers a clearer understanding.

MIP-4 (Reserve Balance Introspection) introduces a new opcode that allows smart contracts to check in real-time whether they violate reserve balance regulations during execution. The benefit of this is that contracts can adjust logic promptly or rollback directly, greatly reducing risk.

MIP-5 (Fusaka EIP Activation) synchronously activates three standards—EIP-7823, EIP-7883, and EIP-7939—within the Ethereum Fusaka upgrade. This demonstrates Monad’s effort to keep pace with the Ethereum ecosystem, ensuring compatibility and interoperability. Overall, these three improvements focus on efficiency, security, and ecosystem alignment.

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AllTalkLongTrader

· 01-25 01:38

Linear memory? Finally not quadratic anymore, now gas fees can breathe a sigh of relief. Activation is not until February next year, so we have to wait, but reducing costs is definitely worth looking forward to. The 8MB limit feels okay, definitely better than that chaotic algorithm before. MONAD is serious this time, with three major improvements rolled out together, it's got some substance.

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StableBoi

· 01-24 19:46

Is linearizing memory enough to solve the problem? It still depends on how it performs in actual operation. --- Quadratic to linear? Hopefully this will make gas fees more manageable haha. --- Another upgrade, another promise. Let's wait and see how this will be implemented next year. --- The 8MB limit still feels a bit tight; complex contracts might not handle it well. --- After all this time, just changing an algorithm logic—kind of interesting. --- Syncing the testnet and mainnet activation without delays this time is pretty good. --- Is MIP-4 not finished yet? Where did all the key information go? --- Reducing resource consumption sounds great, but whether users can really feel the savings is another story. --- Just having stronger predictability is enough; at least no more guessing about gas.

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CryptoGoldmine

· 01-22 15:50

Replacing quadratic algorithms with linear algorithms is the true approach to optimizing gas efficiency. With the 8MB memory limit lifted, developers' cost prediction capabilities are directly improved, which is significant for the long-term ROI of the ecosystem.

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GateUser-e19e9c10

· 01-22 15:49

Linear memory algorithm? Now Monad probably is about to take off, finally no longer suffering from the ridiculous quadratic consumption.

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MercilessHalal

· 01-22 15:49

Linear memory cost? Sounds plausible, but I wonder if it's just on paper data. Activation in February? Still waiting, let's first see how the mainnet stress test goes. The 8MB limit feels a bit tight, is it enough for complex contracts?

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