> 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/selphid/release_notes/6.10.0_releasenotes.md).

# 6.10.0

This Version integrates a new Version of the passive liveness check engine, which includes improvements in closed-eye detection. Support has also been added for managing multiple local License servers (high availability).

### Added

* Support for a local License server with high availability.

### Improved

* New version of the liveness check engine, with improvements in the closed eyes detector.