> 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/6.3.0_releasenotes.md).

# 6.3.0

In this version, the liveness check and facial extraction engines have been updated. A new licensing mode has also been included.

### Added

* License mode `shared-offline`
* New extractor estimators `age` and `gender`
* New build flags in the service `-threads`, `-timeout` and `-kAlive`

### Changed

* Updated liveness check engine.
* Updated facial extraction engine.