Solana Transaction V1 Mainnet Launch Increases Transaction Size Limit to 4096 Bytes

The Solana client development team, Anza, announced that Transaction V1 (SIMD-0385) has been deployed to the mainnet. This update increases the maximum transaction size from 1,232 bytes to 4,096 bytes, enabling complex operations such as ZK proofs, large multi-signatures, and confidential transfers to be executed in a single atomic transaction. Additionally, resource requests like compute unit limits and priority fees are now moved to the transaction header.