{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Release: anthropics/claude-code v2.1.166","description":"Anthropic release signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/e8dbfb69-ee34-43f5-a534-54ed4547c1a6","json_url":"https://onlylabs.fyi/signals/e8dbfb69-ee34-43f5-a534-54ed4547c1a6/signal.json","generated_at":"2026-06-08T10:02:06.041298+00:00","org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab","category_label":"Frontier lab","dossier_url":"https://onlylabs.fyi/labs/anthropic","dossier_json_url":"https://onlylabs.fyi/labs/anthropic/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/e8dbfb69-ee34-43f5-a534-54ed4547c1a6","signal_json":"https://onlylabs.fyi/signals/e8dbfb69-ee34-43f5-a534-54ed4547c1a6/signal.json","source":"https://github.com/anthropics/claude-code/releases/tag/v2.1.166","lab_dossier":"https://onlylabs.fyi/labs/anthropic","lab_dossier_json":"https://onlylabs.fyi/labs/anthropic/dossier.json","analysis":"https://onlylabs.fyi/analysis/anthropic","analysis_json":"https://onlylabs.fyi/analysis/anthropic/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/anthropic/evidence.json","category":"https://onlylabs.fyi/frontier","category_json":"https://onlylabs.fyi/frontier.json","category_feed":"https://onlylabs.fyi/frontier/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json","topic":"https://onlylabs.fyi/topics/releases","topic_signals_json":"https://onlylabs.fyi/topics/releases/signals.json","topic_feed":"https://onlylabs.fyi/topics/releases/feed.xml","data_business":null},"answer_pack":{"answer":"Anthropic published anthropics/claude-code v2.1.166 (anthropics/claude-code). This release signal is evidence of what shipped, changed, or was packaged for users. High-signal details: Notable model update by top lab · v2.1.166 Repository: anthropics/claude-code Tag: v2.1.166 Published: 2026-06-06T00:55:18Z Prerelease: no Release notes: What's changed - Added `fallbackModel` setting to.... onlylabs links this event to 1 captured evidence page and 6 related release signals.","signal_desk":"releases","source_context":{"source_url":"https://github.com/anthropics/claude-code/releases/tag/v2.1.166","source_host":"github.com","occurred_at":"2026-06-06T00:55:18+00:00","first_seen_at":"2026-06-06T01:49:32.519261+00:00","date_source":"source","context":"anthropics/claude-code"},"context_markers":[{"label":"Lab","value":"Anthropic","source":"signal"},{"label":"Signal desk","value":"releases","source":"signal"},{"label":"Source host","value":"github.com","source":"source"},{"label":"Repository","value":"anthropics/claude-code","source":"source"},{"label":"Release","value":"v2.1.166","source":"source"},{"label":"Notability","value":"Notable model update by 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