## Core
### Improvements
- Run `opencode upgrade --major` to upgrade to OpenCode 2.
### Bugfixes
- Allow the OpenAI `ultrafast` service tier.
- Validate PTY connection origins and tickets before checking whether a PTY exists.
## TUI
### Improvements
- Use `/update` to install OpenCode updates or upgrade to OpenCode 2; updates are no longer installed automatically.
**Thank you to 1 community contributor:**
- @dc85:
- docs(web): add Exo Free to Zen docs (#53622)
- fix(stats): attribute exo usage to an unknown provider (#53621)
- docs(web): remove Fledge Alpha Free from Zen docs (#53984)