0.27.0 (2025-08-13) Features [evals] add precision recall fscore metric (#9000) (7aeec60) new evaluator and score abstractions (#8842) (f56b9cf) Bug Fixes [evals] rename and update evaluator decorator (#9044) (bb3500b) Pass default headers to non-azure OpenAI clients (#9001) (baf54a0) Properly return objects from Anthropic adapter (#8977) (e9a2e11) Support o4 in Azure (#9059) (9bec39f)