/ Claude Code v2.1.111

Opus 4.6 users will be automatically remapped to Opus 4.7 on upgrade. To opt out of this remapping, set the environment variable CLAUDE_CODE_DISABLE_LEGACY_MODEL_REMAP=1. The Opus 4.6 model remains available via the model picker as "Opus 4.6" and "Opus 4.6 (1M context)".

The default effort level for Opus 4.7 is "xhigh". If you previously had your effort level pinned to a specific value, it will be preserved. The new unpinOpus47LaunchEffort configuration flag allows the system to auto-adjust effort on first use of the /effort command.

The commit message template has been updated from "Claude Opus 4.6" to "Claude Opus 4.7".

How sure we are

One source agreesOne thing we can check says the same as this entry.

Anthropic's release notes agreeClaude Opus 4.7 xhigh is now available! Use /effort to tune speed vs. intelligence

See this entry in the whole of v2.1.111 →

The build it came inv2.1.111

16 Apr 2026 · 23 entries, this one is #23.

Either side of it

v2.1.110Older
v2.1.112Newer

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Names in this entry

envCLAUDE_CODE_DISABLE_LEGACY_MODEL_REMAP
Set to 1 to prevent automatic remapping of Opus 4.0 and 4.1 to the current Opus version on the Anthropic API. Use when you intentionally want to pin an older model. The remap does not run on Amazon Bedrock, Google Cloud's Agent Platform, or Microsoft Foundry
settingunpinOpus47LaunchEffort
Three model 'launch-effort pinning' config fields were removed from the default client settings
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

Anthropic's notes

Upstream's own release notes for v2.1.111 name something this entry names, so the two are probably about the same change. Probably: the pairing is made on a shared name rather than on the words around it.

Claude Opus 4.7 xhigh is now available! Use /effort to tune speed vs. intelligence
Added xhigh effort level for Opus 4.7, sitting between high and max. Available via /effort, --effort, and the model picker; other models fall back to high
/effort now opens an interactive slider when called without arguments, with arrow-key navigation between levels and Enter to confirm

Is this right?

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