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SOL How the upgrade works
Solana activated the Transaction V1 upgrade on the main network on September 15, increasing the maximum transaction size from 1,232 bytes to 4,096 bytes. The upgrade gives developers approximately 3.3 times as much space in a single transaction to store signature, command and attestation data.
This change is not intended to increase the number of transactions processed per second (TPS) by the network, but rather allows each transaction to carry more data. The old 1,232-byte limit stems from early design choices, when transactions needed to accommodate approximately 1,280 bytes of Internet data packets, leaving 1,232 bytes after deducting network overhead. As Solana changes the way transaction traffic is transported, the original restrictions are no longer necessary. In the past, developers had to split complex operations into multiple transactions to comply with byte limits, but Transaction V1 allowed larger operations to be settled in a single transaction, reducing fees and latency in some cases because fewer signatures and one confirmation were needed.
Zero-knowledge proofs and large multi-signature transactions will benefit the most from the new space, as these operations often require large amounts of encrypted data that could not previously be accommodated. Solana co-founder Anatoly Yakovenko pointed out that the future may involve zero-knowledge roots and rollup-based applications, where larger transactions can combine certificates and state changes into one step execution.
Solana's Internet Activity and Revenue
Solana's Internet Activity continues to hit new highs. In the first quarter of 2026, Solana processed nearly 10 billion non-voting transactions, a record high; in the second quarter, it was approximately 9.7 billion.
In terms of chain revenue, Solana Networks 'total revenue reached US$327 million as of the third quarter, an increase of 23.4% from US$265 million in the second quarter. These revenue mainly comes from memecoin, decentralized exchange (DEX), derivatives and stablecoin activities on the Internet.
Higher trading capacity is expected to support further activity in these areas. As the volume of activity increases, it may translate into higher fees and stronger network revenue in the long run.
Infrastructure compatibility and prospects
Solana set the upper limit to 4,096 bytes, in part because it matches the memory page size commonly used by validator hardware. Setting higher may cause transactions to span multiple memory pages, increasing the processing load on the validator. Although the upgrade did not introduce a separate per-byte charge, larger transactions still consume more network resources. During periods of network congestion, developers may need to pay higher priority fees.
Existing legacy and v0 transaction formats are still valid. Developers need to use the new format only when greater access restrictions are needed. However, some infrastructure, including wallets and block browsers, may need to be updated to correctly recognize the new format and read priority fee data, because Transaction V1 stores this information differently.
The next phase of development depends on how quickly developers and infrastructure providers adopt new formats in wallets, browsers and trading applications.
