To access a subtopic, use "hg help internals.{subtopic-name}"
bid-merge: Bid Merge Algorithm bundle2: Bundle2 bundles: Bundles cbor: CBOR censor: Censor changegroups: Changegroups config: Config Registrar dirstate-v2: dirstate-v2 file format extensions: Extension API mergestate: Mergestate requirements: Repository Requirements revlogs: Revision Logs wireprotocol: Wire Protocol wireprotocolrpc: Wire Protocol RPC wireprotocolv2: Wire Protocol Version 2