> 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/6.13.0_releasenotes.md).

# 6.13.0

In this Version we have updated the passive liveness check engine, which includes improvements in detection accuracy. A log has also been added at the start of SelphID to show the status of the License and activations.

### Added

* Full log for License validation.

### Improved

* Liveness check engine updated to the latest version, improving detection accuracy.