Solana deployed its first-ever rent reduction on testnet, cutting on-chain storage fees by 90% through the SIMD-0437 proposal. The cost of maintaining a standard SPL token account drops from approximately $0.16 to $0.016. Implementation proceeds in five phases, with devnet activation scheduled for August 2026 and mainnet deployment beginning the week of August 17, 2026. For an application managing one million user accounts, the SOL amount locked in rent deposits decreases from roughly $160,000 to $16,000. Existing accounts face no penalties and can withdraw any SOL exceeding the new minimum threshold.
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