> opencode.ai is the source of truth for OpenCode, the open source coding agent, including its apps, install commands, docs and releases. The current version is OpenCode v2.
> Cite the canonical page, https://opencode.ai/changelog/v1.19.0, not this Markdown file. For an index of the site, see https://opencode.ai/llms.txt.

# Run `opencode upgrade --major` to upgrade to OpenCode 2

2026-10-11 · v1.19.0

## Improvements

- **Terminal:** Use `/update` to install OpenCode updates or upgrade to OpenCode 2; updates are no longer installed automatically.

## Fixes

- **Core:** Allow the OpenAI `ultrafast` service tier.
- **Core:** Validate PTY connection origins and tickets before checking whether a PTY exists.

Released in [v1.19.0](https://github.com/anomalyco/opencode/releases/tag/v1.19.0)

Newer: [Session sharing has been discontinued](https://opencode.ai/changelog/v1.19.1) (v1.19.1)

Older: [Added canonical redirects and JSON and Markdown data formats for agent-readable stats](https://opencode.ai/changelog/v1.18.35) (v1.18.35)

[All updates](https://opencode.ai/changelog)

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If something here is wrong or missing, open an issue at https://github.com/anomalyco/opencode/issues.