Highlights
- Anza has activated phase one of SIMD-0437 on Solana's testnet, beginning the account-rent reduction rollout.
- The proposal cuts the network's lamports_per_byte storage-cost parameter from 6,960 to 696 across five feature gates.
- Only the first gate is live; full deployment to mainnet requires all five phases to complete.
- Once finished, the rent-exempt deposit for a standard token account drops from roughly $0.16 to about $0.016.
- The rollout follows July's Agave 4.2 release, which already brought other feature-gated upgrades to Solana mainnet.
A Phased Path to Cheaper Storage
Solana's core development team Anza has enabled the first phase of SIMD-0437 on the network's testnet, according to a PANews report, kicking off testing of a mechanism designed to sharply cut the cost of storing data on-chain. The proposal reduces Solana's lamports_per_byte constant — the parameter that sets how much SOL must be locked up to keep an account rent-exempt — from 6,960 down to 696, a tenfold cut once fully deployed. Anza is rolling the change out incrementally across five separate feature gates rather than flipping it on all at once, and only the first of those five is currently active on testnet.
Why the Incremental Rollout
The five-step path moves the parameter through intermediate values of 6,333, 5,080, 2,575, and 1,322 before settling at 696, letting core developers watch how validators and state growth respond at each stage before committing to the next. That caution matters because rent-exempt balances are a foundational assumption baked into a huge amount of existing Solana tooling and account logic; each gate carries a fallback that can restore the prior value if something breaks. Applied to a standard SPL token account, the full reduction takes the required rent-exempt deposit from roughly $0.16 down to about $0.016, according to the same report, which materially lowers the cost of both creating new accounts and deploying applications at scale.
Related: Solana's Best August Since 2024 Runs Into a Burn-Rate Vote
Part of a Broader Upgrade Cycle
The SIMD-0437 testnet activation follows Anza's July 31 release of Agave 4.2, which already shipped three other feature-gated upgrades to Solana's mainnet — including support for substantially larger transactions and progress toward the network's long-standing goal of 200-millisecond slot times, alongside the first public release of the full Alpenglow consensus codebase. Those Agave 4.2 features began activating on mainnet the week of August 17, alongside a 50,000-SOL bug bounty tied to the new Alpenglow consensus code. Rent reduction was developed as a companion effort rather than bundled into that same activation window, which is why it's only now beginning its own separate, more cautious testnet-first rollout.
What Comes Next
SIMD-0437 still has four more feature gates to clear on testnet before Anza would consider proposing mainnet activation, and each step will be watched closely for its effect on validator storage growth and network state size. Developers building on Solana should treat the current 696-target economics as directional rather than final until the last gate has been live and stable for a meaningful stretch. If the rollout holds to its current pace, the cumulative effect for builders is straightforward: cheaper account creation, cheaper program deployment, and one less line item to budget around when shipping consumer-scale applications — arriving just as Solana heads into a period of heavier on-chain activity.
