Authelia v4.39.18 released on 10-04-2026

Authelia v4.39.18 is out now. If you use Duo for two‑factor authentication, it fixes an incorrect response-code check that could cause otherwise successful Duo API responses to be treated as failures.
See the Authelia GitHub release notes for full details. Container images for v4.39.18 are published and available to pull from Docker Hub or the GitHub Container Registry.
What’s in this release
- duo: remove incorrect response code check for successful api calls (issue #11723, commit 310844b)
- Docker container images published: docker pull authelia/authelia:4.39.18 or docker pull ghcr.io/authelia/authelia:4.39.18
- Small maintenance release focused on bug fixes; no other functional or breaking changes recorded
Upgrade notes
- No breaking changes reported. If you rely on Duo for 2FA, upgrade to v4.39.18 to ensure Duo responses are handled correctly—pull authelia/authelia:4.39.18 or ghcr.io/authelia/authelia:4.39.18 and restart your deployment.
- Rollback: if the update causes issues, redeploy the previous image tag you were running.
If you upgrade, share your experience or any regressions you encounter on the project’s GitHub so others can benefit from the details.

