Default compose model moves to unsloth/gemma-4-26B-A4B-it-qat-GGUF (migration rewrites plugin_ai_instructions columns + enum). Strip markdown code fences from plain-text fallbacks so Gemma's JSON-flavored answers still render as prose. Pin a bun patchedDependencies patch for @ai-stack/payloadcms (activeFieldPath context) which requires the patches/ directory alongside package.json and bun.lock. Note: the change_ai_model migration also carries the new map permission enum values from the map permission split.