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Solana cuts storage rent 90%, boosts transaction size, and halves slot time in major Agave 4.2 upgrade

Protocol Fundamentals
18 Aug 2026
Crypto news
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Bullish
Solana cuts storage rent 90%, boosts transaction size, and halves slot time in major Agave 4.2 upgrade

Solana's Agave 4.2 upgrade, activated on mainnet starting August 17, 2026, introduces three key improvements: a 90% reduction in on-chain storage rent, a 3.3-fold increase in maximum transaction size, and a staged reduction of slot time from 400ms to 200ms. These changes lower developer costs, enable more complex transactions, and speed up transaction confirmations, positioning Solana competitively against Ethereum. The upgrade also sets the stage for the upcoming Alpenglow consensus mechanism in October 2026, which will further reduce finality times. While the improvements promise faster, cheaper, and more capable infrastructure, they also raise concerns about increased validator hardware demands and potential network centralization risks.

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