join — Group 9, Code 93
Combine smaller denominations into a larger denomination.
Purpose
join is live in the current audited dispatch table. Use it to combine lower denominations into a larger denomination when the resulting value is exactly representable.
Frontend guidance
Do not treat join as dormant. It belongs in the active developer surface together with make_change, get_available_change_sns, and break.
Legacy wire reference — verify before relying
This byte layout was restored from the pre-V2 documentation (commit ceba44b). It has not been cross-checked against the current raidax implementation in every detail.