v4.2.5

onyx-dot-app/onyxv4.2.5Jul 9, 2026by github-actions[bot]

AI Summary

Focuses on desktop and voice functionality improvements, including webview ACL permissions, hallucination prevention in STT, and multi-model chat rendering.

Key Highlights

Grant webview ACL permissions for shell-open and titlebar drag
Gate silent audio to stop hallucinated transcripts
Render full multi-model comparison in shared chats
Omit sampling params for Claude Sonnet 5

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(desktop): grant webview ACL permissions for shell-open and titlebar drag (#12719) to release v4.2 by @onyx-cherry-pick[bot] in https://github.com/onyx-dot-app/onyx/pull/12721
* fix(voice): gate silent audio out of chunked STT to stop hallucinated transcripts (#12713) to release v4.2 by @justin-tahara in https://github.com/onyx-dot-app/onyx/pull/12726
* fix(chat): render full multi-model comparison in shared chats (#12792) to release v4.2 by @nmgarza5 in https://github.com/onyx-dot-app/onyx/pull/12795
* fix(auth): sync in-memory oidc_expiry after OAuth refresh [v4.2] by @raunakab in https://github.com/onyx-dot-app/onyx/pull/12802
* fix(llm): omit sampling params and use adaptive thinking for claude-sonnet-5 (#12735) [v4.2] by @justin-tahara in https://github.com/onyx-dot-app/onyx/pull/12817

**Full Changelog**: https://github.com/onyx-dot-app/onyx/compare/v4.2.4...v4.2.5