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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.

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Claude Code v2.1.67 4 Mar 2026

Effort Callout Suppressed for First-Time Users

What

The effort level information callout for Opus 4.6 is now automatically dismissed on a user's very first session, avoiding unnecessary friction for new users.

Details

When numStartups <= 1, the callout is skipped and effortCalloutDismissed is set to true immediately
Existing users who have had multiple sessions will continue to see the callout as before (if not previously dismissed)

Evidence

First-startup guard in effort callout — ahq() function (search for "effortCalloutDismissed" near "numStartups")

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

See this entry in the whole of v2.1.67 →