Solana is launching Transaction v1 this week, expanding the maximum transaction size to 4,096 bytes.
Solana will officially launch Transaction v1 on mainnet on Sept. 9 (Wednesday), expanding the maximum Trade size from 1,232 bytes to 4,096 bytes—more than three times the previous limit. The upgrade is defined by two Solana improvement proposals: SIMD-0296 (larger Trades) and SIMD-0385 (the Transaction v1 format). Technical Specifications of Transaction v1 Transaction v1 is defined jointly by two Solana improvement proposals: SIMD-0296 specifies the larger Trade limit, while SIMD-0385 defines th