Jito upgrades BAM bundle infrastructure with direct node submission

Jito has rolled out two upgrades to the bundle infrastructure behind BAM, adding Direct Bundle Ingest, or DBI, and an updated Block Engine forwarding path. DBI has already been available on mainnet to an initial group of searchers over the past month, letting them send bundles straight to BAM nodes through QUIC or JSON-RPC instead of routing them through the Jito Block Engine first. Jito also said existing bundles received by Block Engine, along with sendTransaction traffic, will now be forwarded to BAM through DBI, removing the previous 50-millisecond auction step from that path. Based on two comparison windows of roughly two and a half weeks each, the company said the number of bundles received by BAM fell 7.5% after the change, while the number of bundles that landed on-chain rose 16.9%. The landing rate increased from 0.45% to 0.57%. DBI is currently available through a whitelist-based access model.