> 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/backend1n/release_notes/4.1.0_release_notes.md).

# 4.1.0

In this Version, the biometric backend has been updated to SelphID 6.17.0. This Version adds two features that could be useful for the 1:n backend in the future.

* Support for raw templates with future timestamps.
* Support for detecting and removing obsolete or "expired" biometric patterns in 1:n galleries.

### Changed

* Backend update to `selphid/6.17.0`.
  * Tokens with `futureTimeAllowed`.
  * 1:N galleries with timestamp support (list/delete obsolete templates).