Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Message QueueArea: what it touches
Internal ChangesKind: in v2.1.286,
Internal ChangesSection of the release
What
Commands waiting in a queue to be processed now carry a delivery ID. The usage report Claude Code sends when it gives up waiting for an MCP server update from the SDK now also includes a field about relay holds. The SDK is the toolkit for building programs on top of Claude Code.
Why
These are small internal additions for tracking deliveries. Nothing you do changes.