Solana sets September 9 for Transaction V1 rollout

Transaction V1 will increase the maximum serialized transaction size from 1,232 bytes to 4,096 bytes. This shift enables the network to handle more complex data, including zero-knowledge proofs, multisignature instructions, and cross-chain operations. Developers must opt into this new format, as legacy and version-zero transactions will remain fully compatible. The upgrade requires wallets and infrastructure providers to adapt to larger data payloads, prompting developers to coordinate testing to mitigate potential network fragmentation.

Alongside the transaction update, Solana is initiating a five-stage rent reduction plan designed to eventually lower costs by 90%. By reducing the amount of SOL required for account creation, the network aims to lower entry barriers for dApps. These changes, alongside further reductions in slot times and the anticipated October launch of the Alpenglow consensus redesign, are governed by independent feature gates. This modular approach allows validators to monitor network performance and stability before committing to each successive improvement.