Transaction V1 activates on Solana mainnet on 10 September 2026, at the next epoch boundary. It...
Transaction V1 activates on Solana mainnet on 10 September 2026, at the next epoch boundary. It raises the maximum transaction size from 1,232 bytes to 4,096 bytes, and it uses a new format that older client libraries cannot read.
Only one item on this list throws an error. The rest let your code keep running while it reports the wrong numbers.
Where each change stands
Change
Status
Solana's Transaction v1 upgrade heads to testnet, expanding max transaction size from 1,232 to 4,096 bytes and enabling ZK proofs…
Solana is raising transaction size from 1,232 to 4,096 bytes with the new v1 wire format. What breaks for RPC readers, indexers,…
Solana's V1 transaction format is live on testnet, expanding max size from 1,232 to 4,096 bytes to support ZK proofs, large…
Anza targets Aug. 17 for Solana's Agave v4.2 upgrade, halving slot times to 200ms, increasing transaction sizes, and reducing…
Agave 4.2 represents an important infrastructure transition for Solana, but it should not be...
Solana activates 350-ms slots on mainnet, boosting transaction speeds. Solana reaching $160 in August 2026 at 0.7% YES.
