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 v2.1.247 Home All releases olderv2.1.246 v2.1.248newer
Claude Code v2.1.247

The CCR v2 event-send switch now defaults on

You'll notice
Useful3 Signal3
Cloud Sessions not in their notes

The newer cloud event-sending path is now the default when the server has no opinion.

Feature flag
tengu_ccr_v2_send_events_cli Off by default, switched on for this account

The shipped code defaults this off, and the flag server returned on for the one account this site reads on this version. That is the reading that makes the entry above worth a second look, and it still says nothing about your account.

This account: on · anonymous baseline: on · compiled default in v2.1.247: off

Read once, for one account on one subscription tier, against v2.1.247. It isn't a statement about your account. What a flag value here can and cannot tell you

tengu_ccr_v2_send_events_cli
What

The setting tengu_ccr_v2_send_events_cli, which selects the newer path for sending cloud session events, now falls back to enabled when the server expresses no opinion. It previously fell back to disabled. The real value still comes from remote config.

Details
  • Nothing else in the bundle references the local name of the check, so which send path this default now turns on cannot be pinned down from the build alone.
  • Related churn in the cloud sessions client in the same change threads a per-call timeout through event posts and control responses, consistent with the v2 path being prepared for real traffic.
Evidence

tengu_ccr_v2_send_events_cli

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.247 →