> For the complete documentation index, see [llms.txt](https://docs.facephi.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.facephi.com/docs.facephi-en/sdks/backend-sdk/ocr/release_notes/2.16.0_release_notes.md).

# 2.16.0

## Summary

This Version focuses on improving system flexibility, recognition accuracy, and overall robustness. Configuration management has been enhanced with new capabilities based on environment variables, enabling more dynamic and reliable configurations. In addition, the recognition engine and document templates have been updated to offer better performance and compatibility. Several internal fixes and improvements further strengthen the system's stability and maintainability.

## New features

* Support has been added for loading the configuration from environment variables.
* Configuration management has been improved to preserve existing values when they are not explicitly overwritten.
* The document reader SDK has been updated to version 4.5.
* The recognition engine has been updated to version 6.1 to improve accuracy and performance.
* The document templates have been updated (including the update to v1.19.0). ARG processing has been improved.

## Fixes

* A possible null pointer issue has been fixed.
* Validation has been improved for empty license scenarios.
* Error messages have been improved when loading license files.
* Accuracy has been improved in processing identity and multi-document documents