Solana Foundation Vice President of Technology Jacob Creech announced that Transaction V1 is scheduled for Sept. 9, while the first stage of a network rent reduction is expected during the week beginning Aug. 31. The tentative roadmap also targets the Alpenglow consensus redesign for October, alongside further reductions in slot times.
Transaction V1 will raise Solana’s maximum serialized transaction size from 1,232 bytes to 4,096 bytes, roughly 3.3 times the previous limit. The larger format could support zero-knowledge proofs, complex multisignature instructions, BLS signatures and cross-chain operations, according to the associated SIMD-0296 proposal. Developers must opt into V1, and legacy and version-zero transactions remain valid. The change will require wallets, APIs and other infrastructure to handle larger data payloads, while the proposal notes possible bandwidth and network fragmentation risks.
The rent reduction will unfold in five stages, eventually lowering the rent calculation from 6,960 lamports per byte to 696 lamports per byte, a 90% savings target. Because rent functions more like a refundable deposit for account state, lower requirements should reduce the SOL developers must lock when creating token accounts, program accounts and other on-chain state. Agave 4.2 includes the necessary code, but the rent, transaction-size and slot-time changes are gated separately.
Solana has already reduced its target slot time from 400 milliseconds to 350 milliseconds, with additional targets of 300, 250 and 200 milliseconds planned later. Alpenglow remains targeted for October, aiming for around 150-millisecond finality after mainnet activation, though no guaranteed activation date has been set.
On the market side, SOL traded around $104.65 after recovering from about $75 during the second half of August and briefly crossing $110. It cleared its 50-day moving average at $80.78, the 100-day moving average near $82.46, and a resistance cluster around $90 that includes the 20-day exponential moving average and the 200-day moving average. Traders now view $90 as key support and $110 to $111 as immediate resistance. A confirmed break above $111 could expose the $115 to $120 zone, while a failed breakout may force a retest of $100 or $90. Elevated RSI readings above 70, after peaking above 80, suggest short-term pullback risk despite the improved technical structure.
