OpenCode v1.19.4

Released Oct 22, 2026 · OpenCode / SST

Security fix

Upgraded to OpenCode v1.19.4?

Tell other builders how it went. Anonymous, one answer each; the tally shows once three people have answered.

I run

See what changed since, breaking first, with a prompt your agent can work from.

Core

Improvements

Upgraded the bundled Bun runtime to 1.4.4, which includes security fixes for Brotli, TLS, HTTP/1.1, HTTP/2, HTTP/3, WebSocket, and fetch, and updates root certificates to NSS 3.131.1.