Solana Transaction V1 Targets September 9 Mainnet Activation

Solana Transaction V1 has reached testnet and is targeted for mainnet on September 9, 2026. The upgrade introduces a 4,096-byte transaction limit, native atomicity, and inline accounts for larger proofs, multisigs, and complex DeFi operations; RPC providers, wallets, indexers, and applications must verify compatibility before activation.