Solana (SOL) Triples Transaction Size to 4,096 Bytes With V1 Upgrade

Solana's Transaction V1 Goes Live

Solana has more than tripled how much data a single transaction can carry, activating the network's new Transaction V1 format on Tuesday at approximately 01:00 UTC. The upgrade's official page states the per-transaction ceiling now sits at 4,096 bytes, up from the long-standing 1,232-byte limit — a change that reshapes what developers can pack into one atomic operation on the Solana blockchain, the high-throughput layer-1 network.

The extra room holds instructions, signatures and other payload data needed to execute a transaction; the change concerns how much each transaction carries rather than how many the network processes per second. Developers previously had to compress operations into a cramped payload or split them across multiple transactions — and workarounds that bundled several transactions did not carry the same network-level guarantee that every step succeeds or fails together, per the design proposal behind the change. Transaction V1 restores that all-or-nothing property for larger, multi-step trades.

Two use cases flagged in the proposal stand out: multisignature company wallets, where several people must approve a payment, and zero-knowledge proofs, which allow applications to verify data without exposing the underlying inputs.

The upgrade also closes a structural gap against rival networks. Ethereum imposes no rigid protocol-level size limit on transactions, so developers there can pack large, data-dense operations into a single call simply by paying a higher fee. Even as Solana consistently outperformed on speed and cost, its 1,232-byte cap was one area where it lagged; more than tripling that ceiling aims to eliminate the bottleneck outright.

Compatibility is the near-term operational risk. Services that feed blockchain data to wallets, trading apps and analytics platforms must recognize V1 transactions, or a request for an individual transaction can fail — and a request for an entire block can also fail if the block contains even one V1 transaction, per the Foundation's warning. Legacy transaction formats remain fully supported: an app can keep sending in the old formats but still needs updating to read the new ones. No widespread outage has occurred; these are compatibility warnings rather than evidence of failure.

DeFi Development Expands SOL Treasury

DeFi Development Corp, a Nasdaq-listed treasury company focused on Solana, grew its holdings by 2% to 2.39 million tokens between August 27 and last week, its official announcement confirms. The same disclosure confirms the launch of a $300 million at-the-market program for CHAD, a Solana-backed preferred equity instrument designed to fund continued accumulation. The move extends the company's earlier share sale program established specifically to fund Solana purchases, deepening the balance-sheet tokenomics playbook spreading across the Solana ecosystem.

The accumulation ran counter to a choppy September in which the broader altcoin market drifted lower ahead of the Federal Reserve's rate decision, scheduled for September 16. Peer treasuries stayed active across chains: BitMine Immersion Technologies added 27,180 ETH last week to reach 5.956 million tokens — roughly 4.9% of circulating supply, with about 5.07 million of those held in staking — while Strive, the fifth-largest public Bitcoin treasury firm, bought 469 BTC between September 8 and 11 at an average price of $77,954, lifting its stack to 25,000 coins. Strategy, the largest corporate Bitcoin holder at 845,050 BTC, sat the week out and instead bought back $139 million of its own STRC preferred shares.

Markets have shifted toward pricing a hike: CME FedWatch placed the probability of a quarter-point increase at 85.6% as of September 11, up from 48.4% a month earlier. Higher rates raise the cost of holding non-yielding assets, a dynamic that has historically pressured crypto in tightening sessions — the coming weeks will test whether these treasuries keep buying through a deeper drawdown. For readers weighing direct exposure alongside these corporate buyers, our guide on how to buy Solana covers the practical steps. Readers tracking the market in real time can follow live spot and futures prices on Gate.

Capacity Meets Demand

Taken together, the two threads describe a network scaling capacity and institutional demand simultaneously. The official release notes are precise on scope: activation near 01:00 UTC on September 15, a 4,096-byte payload ceiling, legacy formats still honored, and the operator-side burden landing on data providers who must parse V1 or risk failed block reads. That format-level upgrade arrives as a listed treasury expands to 2.39 million SOL with a fresh $300 million buying channel behind it, and as analysis finds prop AMMs taking up to 30% of Solana DEX volume. COINOTAG's reading: Solana is being built out and stocked up at the same time — a maturation signal worth watching through the Fed decision.