## Background Anthropic is deprecating several model families: - V2 models and Sonnet 3.0 are already deprecated - V3 family will be deprecated within 60 days ## Required Changes Remove all non-V3.5 models from the codebase. Migration paths should be: - `claude-3-haiku-20240307` → `claude-3-5-haiku-20241022` - All other non-3.5 Claude models → `claude-3-5-sonnet-20241022` ## Impact All features should already be migrated to V3.5. Main focus areas: - Default model settings - Any remaining feature configurations using deprecated models ## References - [Anthropic Model Deprecation Documentation](https://docs.anthropic.com/en/docs/resources/model-deprecations) ***