Solana’s Agave 4.2 activation target arrives with mainnet feature gates still pending
Agave 4.2 reached its Aug. 17 target date without a confirmed mainnet delivery update. Anza had recommended Agave 4.2 for general mainnet adoption on Aug. 11, but its feature tracker still marked the first slot-time gates as pending on mainnet. The 350 ms and 300 ms reductions had activated on testnet and devnet, but no mainnet activation epoch was listed; the 250 ms gate was still pending on devnet and the 200 ms gate remained pending on testnet. The rollout also does not mean the rent reduction is live. The planned five-step change cuts `lamports_per_byte` from 6,960 to 696, but all five gates were still inactive. The same applies to the transaction-size upgrade: 4,096-byte transactions apply only to the new format, with legacy and v0 limits unchanged. Agave 4.2 includes code for Alpenglow testing, but that consensus change is expected in Agave 4.3, not 4.2.
