v4.6.6

onyx-dot-app/onyxv4.6.6Sep 2, 2026by github-actions[bot]

AI Summary

This patch release includes security updates for dependencies and Docker base images, along with fixes to handle enterprise settings gracefully and persist user-chosen reasoning levels.

Key Highlights

Security updates for nltk and Docker images (openssl)
Fixed enterprise-settings 404 handling
Persisted reasoning level selection

New Features

NLTK security bump
Docker image refresh
Enterprise settings fix
Reasoning level persistence

Full Release Notes

## Warning
Do not upgrade to this release if you want to preserve your existing indexed documents but have not yet run the document index migration, which can be done from any version v3.x. [See additional documentation here](https://docs.onyx.app/admins/advanced_configs/opensearch_document_index_migration#opensearch-document-index-migration).

See the assets to download this version and install.

## What's Changed
* fix(web): treat enterprise-settings 404 as CE, not a fatal error (#14413) to release v4.6 by @nmgarza5 in https://github.com/onyx-dot-app/onyx/pull/14415
* chore(deps): bump nltk to 3.10.3 (PYSEC-2026-3735) (#14400) to release v4.6 by @nmgarza5 in https://github.com/onyx-dot-app/onyx/pull/14418
* chore(docker): refresh the DHI base image digests for openssl 3.5.7 (#14428) to release v4.6 by @nmgarza5 in https://github.com/onyx-dot-app/onyx/pull/14433
* chore(docker): refresh the python slim digest for openssl 3.5.7 (#14407) to release v4.6 by @nmgarza5 in https://github.com/onyx-dot-app/onyx/pull/14447
* fix(web): persist a reasoning level chosen before the first message (#14448) to release v4.6 by @nmgarza5 in https://github.com/onyx-dot-app/onyx/pull/14450

**Full Changelog**: https://github.com/onyx-dot-app/onyx/compare/v4.6.5...v4.6.6