Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SDKArea: what it touches
Internal ChangesKind: in v2.1.268,
Internal ChangesSection of the release
Unclear What actually consumes the numbered results, and why numbering was needed, isn't shown in the evidence.
What
At startup, Claude Code now wires a new resultDelivery object onto the session's transport layer. It's used to stamp outgoing 'result' type messages so they can be delivered with a sequence number, and a separate counter reads that number back off resultDelivery elsewhere.
Why
Numbering result messages likely helps consumers of the session transport track ordering or detect gaps in delivered results, though the evidence doesn't spell out the specific consumer.
