Instructor v1.15.4

Instructor releases published Instructor v1.15.4. This release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: What's Changed Instructor 1.15.4 is a patch release that consolidates the latest small fixes and docs cleanup after 1.15.3 . Runtime Fixes Fixed v2 response-model preparation so list and primitive response models are normalized before provider handler dispatch. This fixes crashes such as AttributeError: type object 'list' has no attribute 'model json schema' for list Model and scalar response models. Fixed streamed JSON extraction so backticks inside JSON string values are preserved instead of being interpreted as markdown fence delimiters. Fixed Image.autodetect() to accept raw JPEG, PNG, GIF, and WebP bytes, while raising clear errors for unsupported image inputs. Added regression coverage for the existing Gemini empty-message path. Fixed list BaseModel simple-type detection so model lists route through iterable handling instead of scalar wrapping. CLI Fixed fine-tuning job creation…

• Review the official Instructor releases release notes before upgrading.
• Check compatibility, migration, and security notes against your current agent stack.
• Run focused regression tests before production rollout.