How does a Transaction Bundle work?
A sender prepares the signed transactions and attaches supported conditions, such as a target block. A builder or execution service evaluates the bundle according to its own interface.
What should trading bot developers know about Transaction Bundle?
Do not assume that every bundle is all-or-nothing or guarantees inclusion. Jito bundles have specific Solana execution semantics, while EVM builder interfaces can expose different handling of reverting transactions.
Sources & further reading
Definitions are editorial summaries of the sources below. Protocol behavior and provider policies can change; consult the linked documentation for implementation details.