Updated Opus 4.7 Welcome Message / Claude Code v2.1.116

The welcome banner changed from "Welcome to Opus 4.7 xhigh! · /effort to tune speed vs. intelligence" to "Opus 4.7 xhigh is now available!" with separate effort and model hints.

Evidence

Welcome message (search for "Opus 4.7 xhigh is now available") — Vy1 at line ~514278

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

See this entry in the whole of v2.1.116 →

The build it came inv2.1.116

20 Apr 2026 · 34 entries, this one is #18.

Either side of it

v2.1.114Older
v2.1.117Newer

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Names in this entry

slash/effort
Set the effort level: low to xhigh, max, ultracode, or auto; status prints it. max and ultracode are session-only; the ultracode key persists. Run it while Claude is responding and, once you confirm the cache warning, if Claude Code shows one, Claude Code applies the new level to the next request in that turn. Before v2.1.242, Claude Code decided from a feature flag it fetched from Anthropic whether to run the command mid-turn or queue it until the turn finished, and always queued it in a session that doesn't fetch feature flags, such as on a third-party provider. Works in -p

Is this right?

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