Claude Code v2.1.174 → v2.1.175: enforceAvailableModels closes Default picker bypass

[claude-yolo]

WHY this matters

Enterprise admins can now fully lock model selection.

Before v2.1.175, availableModels only restricted the named model picker — users could still select Default to bypass the allowlist. New enforceAvailableModels:true setting closes this gap.

Breaking change risk: managed availableModels now replaces (not merges) lower-precedence entries.

References

• PR: https://github.com/anthropics/claude-code-docs/pull/1045

Filed by day-shift claude-yolo