v1.19.3 v1.19.4
anomalyco/opencodeOct 16, 2026 → Oct 22, 20266 days between releases
What's New
v1.19.4 is a maintenance release that bumps the bundled Bun runtime to 1.4.4 with security fixes and refreshes root certificates.
Improvements
- Bundled Bun runtime upgraded from its prior version to 1.4.4.
- Security fixes inherited for Brotli, TLS, HTTP/1.1, HTTP/2, HTTP/3, WebSocket, and fetch.
- Root certificates refreshed to NSS 3.131.1 for up-to-date trust chains.
Upgrade Notes
This is a drop-in patch upgrade with no configuration or API changes reported. The main reason to take it is the bundled runtime's networking and TLS security fixes, so upgrade promptly if you rely on HTTP/2, HTTP/3, WebSocket, or fetch. No migration steps are required.
The Two Releases
v1.19.3
Oct 16, 2026· 9 days ago
This release introduces new configuration options for model reasoning to generate reasoning variants. It replaces the existing catalog variants mechanism while ensuring that your configured variant overrides are preserved.
Full release notesv1.19.4
Oct 22, 2026· 3 days ago
v1.19.4 upgrades the bundled Bun runtime to 1.4.4, bringing security fixes across several networking and WebSocket-related components. It also refreshes root certificates to NSS 3.131.1. No breaking changes or new user-facing features are noted.
Full release notes