Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.50 Home All releases olderv2.1.49 v2.1.51newer
Claude Code v2.1.50

System Sleep Detection for WebSocket Connections

What

Improved reconnection handling when the system wakes from sleep.

Details
  • Detects large time gaps between reconnection attempts indicating system sleep
  • Resets the reconnection budget after sleep to avoid exhausting retries
  • Adds periodic keep-alive frames for more reliable connection maintenance
Evidence

Sleep detection logic (search for "Detected system sleep", "resetting reconnection budget")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.50 →