V18.0.0 swaps the underlying node-telegram-bot-api library from v0.66 to v1.0.0 — a substantial rewrite that drops several legacy msg.payload.options field names. Existing V17 flows keep working ...
Not all of these releases were tagged on GitHub and none of them have release notes on GitHub. Releases prior to 0.5.0 were not documented (although some were tagged on GitHub).