> 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/6.11.0_releasenotes.md).

# 6.11.0

In this version, the passive liveness check engine has evolved, including support for new spoofing attacks, such as FaceSwap or DeepFake. The facial extractor has also been calibrated to improve accuracy in low-resolution images. Finally, a new endpoint has been added to the C++ REST service to obtain information about the input buffers.

### Improved

* New passive liveness check engine, which includes detection of new spoofing cases.
* Facial pattern extractor with low-resolution images.

### Fixed

* Typos in the C++ Rest API service in the member `options`:
  * `elapsedAllowedSeconds` (before `ellapsedAllowedSeconds`).
  * `minSimilarity` (before `minSimilariry`).

### Added

* New endpoint in the C++ REST service `/tokeninfo`, to obtain the type of an image or token.