v3.11.7: vision auto-detect, proactive non-vision detection, unit tests (PR #7), auth fix

CHANGELOG.md

@@ -1,5 +1,23 @@
 # Changelog
 
+## v3.11.7 (2026-05-26)
+
+**Vision Auto-Detect, Proactive Non-Vision Model Detection, Unit Tests, Bug Fixes**
+
+### New Features
+
+- **Vision auto-detect fallback**: When no explicit vision fallback is configured, automatically uses the current provider's own vision model (e.g., `0G-Qwen-VL` for OpenAdapter) as the image description API — no separate API key needed
+- **Proactive non-vision model detection**: Models matching name patterns (`glm`, `deepseek`, `llama`, `qwen` without `vl`, etc.) are detected as non-vision on first request without waiting for an error from the provider
+- **Vision preprocessing is now the primary image handling solution**: Replaces old `_strip_images_from_input()` (which just removed images with a placeholder). Images are now described via API and sent as rich text descriptions to text-only models
+- **Merge PR #6**: Vision/OCR preprocessing for text-only models (cobra91)
+- **Merge PR #7**: 177 unit tests for translate-proxy.py (cobra91)
+
+### Bug Fixes
+
+- **AttributeError fix**: `image_url` field can be a string (bare URL) not always a dict — fixed in both `_preprocess_vision_input()` and old strip function
+- **Auth os error 2 fix**: GUI shows "Config missing" message instead of raw OSError when `~/.codex/` directory doesn't exist
+- **Removed duplicate vision functions**: Cleaned up duplicate `_vision_describe_image()`, `_preprocess_vision()`, `_preprocess_vision_input()` from merge
+
 ## v3.11.6 (2026-05-26)
 
 **Antigravity Loop Breakers, Vision/OCR Preprocessing, has_content Fix, Auth Error Fix**