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v1.4.9.11

HKUDS/LightRAGv1.4.9.11Jan 15, 2026by danielaskdd

AI Summary

This release adds Gemini Vertex AI support, fixes OpenAI LLM binding from environment variables, and adds multiple new language localizations including Korean, German, Ukrainian, Russian, and Japanese.

Key Highlights

  • Fix OpenAI LLM binding options not loaded from environment variables
  • Gemini Vertex AI support for LLM binding
  • Korean localization added
  • German, Ukrainian, Russian, and Japanese i18n support
  • MDX file type support
  • WebUI Token Auto-Renewal with sliding window expiration
  • PostgreSQL reconnection tolerance for HA deployments

New Features

  • Gemini Vertex AI LLM support
  • Korean, German, Ukrainian, Russian, Japanese localization
  • MDX file format support
  • WebUI token auto-renewal system
  • PostgreSQL HA reconnection improvements

Full Release Notes

## Hot Fixed
* **Fix OpenAI LLM binding options not loaded from environment variables** by @danielaskdd in https://github.com/HKUDS/LightRAG/pull/2585

## What's New

* feat(gemini): Add Vertex AI support for Gemini LLM binding by @danielaskdd in https://github.com/HKUDS/LightRAG/pull/2529
* refact(gemini): Migrate Gemini LLM to native async Google GenAI client by @danielaskdd in https://github.com/HKUDS/LightRAG/pull/2531
* Refact: Change DOCX extraction to use HTML tags for whitespace by @danielaskdd in https://github.com/HKUDS/LightRAG/pull/2550
* feat: add Korean localization by @jhchoi1182 in https://github.com/HKUDS/LightRAG/pull/2571
* Add support for mdx file type by @coldfire-x in https://github.com/HKUDS/LightRAG/pull/2566

* Add i18n support for German, Ukrainian, Russian, and Japanese languages by @mlimarenko in https://github.com/HKUDS/LightRAG/pull/2547

## What's Fixed

* docs: fix the simple program rag init function return value in README.md by @Peefy in https://github.com/HKUDS/LightRAG/pull/2532
* docs: fix the simple program rag init function return value in README-zh.md by @Peefy in https://github.com/HKUDS/LightRAG/pull/2534
* feat: Implement WebUI Token Auto-Renewal (Sliding Window Expiration) by @danielaskdd in https://github.com/HKUDS/LightRAG/pull/2543
* Fixes the Gemini integration example in the README by @vishvaRam in https://github.com/HKUDS/LightRAG/pull/2537
* Add Gemini demo for LightRAG by @vishvaRam in https://github.com/HKUDS/LightRAG/pull/2538
* Add LightRAG demo with PostgreSQL and Gemini integration by @vishvaRam in https://github.com/HKUDS/LightRAG/pull/2556
* Update PostgreSQL demo script reference in README.md by @vishvaRam in https://github.com/HKUDS/LightRAG/pull/2557
* Fix: Enhance PostgreSQL Reconnection Tolerance for HA Deployments by @danielaskdd in https://github.com/HKUDS/LightRAG/pull/2562
* Add NEO4J_DATABASE variable to README by @vishvaRam in https://github.com/HKUDS/LightRAG/pull/2578
* Bump the frontend-minor-patch group in /lightrag_webui with 2 updates by @dependabot[bot] in https://github.com/HKUDS/LightRAG/pull/2577
* Add LightRAG demo script with vLLM integration by @vishvaRam in https://github.com/HKUDS/LightRAG/pull/2582

## New Contributors

* @Peefy made their first contribution in https://github.com/HKUDS/LightRAG/pull/2532
* @vishvaRam made their first contribution in https://github.com/HKUDS/LightRAG/pull/2537
* @mlimarenko made their first contribution in https://github.com/HKUDS/LightRAG/pull/2547
* @jhchoi1182 made their first contribution in https://github.com/HKUDS/LightRAG/pull/2571
* @coldfire-x made their first contribution in https://github.com/HKUDS/LightRAG/pull/2566

**Full Changelog**: https://github.com/HKUDS/LightRAG/compare/v1.4.9.10...v1.4.9.11