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Claude Code v2.1.166 adds fallback models and deeper sub-agent nesting

Claude Code v2.1.166 introduces a fallbackModel setting that tries up to three models when the primary is unavailable, and allows sub-agents to spawn their own sub-agents up to 5 levels deep. The update also adds glob pattern support in deny rules and fixes multiple bugs including session compaction and model picker issues in Bedrock.

Jun 6, 1:43 AM
Claude Code v2.1.166 adds fallback models and deeper sub-agent nesting — AIBriefs