What
When Claude Code duplicates a config or session directory, it now also copies .config.json and, for each suffix in a new list, a .claude${suffix}.json file, in addition to the existing .claude.json, settings.json, and cowork_settings.json files it already copied.
Why
This brings more of a user's profile-related settings files along when a config directory is duplicated, so a copied session or config more fully reflects the original setup.
settings.json
Claude for Government changelog modified, high confidence
* Changed plugin uploads to ask for the Runs code confirmation when a plugin's `settings.json` sets anything other than its default agent or a `$schema` reference, such as a status line.see the edit
settings.json
Explore the .claude directory modified, high confidence
| `managed-settings.json` | System-level, varies by OS | Enterprise-enforced settings that you can't override, apart from [narrow exceptions](/docs/en/settings#security-keys-where-the-stricter-value-applies). See [where to save the file](/…see the edit
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Anthropic's documentation agrees
settings.json on Claude for Government changelog