# opencode 1.17.9: GLM-5.2 high/max thinking variants, step-limit behavior fix

> Small release. Agent step limits now end with a forced final text response instead of failing mid-run, GLM-5.2 gains high and max thinking variants across supported providers, and follow-up user messages are no longer wrapped in a steering reminder so prompt caching keeps working.

| | |
|---|---|
| **Tool** | opencode |
| **Version** | v1.17.9 |
| **Kind** | release |
| **Published** | 2026-06-21 |
| **Observed** | 2026-08-11 |
| **Significance** | 2/5 |
| **Breaking** | no |
| **Categories** | fix, model-support, feature |

## What changed


- Core: configured agent step limits force a final text response rather than failing mid-run
- Core: `high` and `max` thinking variants added for GLM-5.2 across supported providers
- Core: follow-up user messages no longer wrapped in a steering reminder, preserving prompt caching
- Core: Devstral model detection fixed for provider IDs with differing casing
- Core: configured custom headers now passed to Copilot model requests
- TUI: background subagent shortcut only shown when the server supports it


## Sources

- [github_release](https://github.com/anomalyco/opencode/releases/tag/v1.17.9) — retrieved 2026-08-11

## Community

_No curated reactions recorded. Facts and community takes are kept in separate layers
and never blended._

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Canonical: https://changelogs.info/opencode/v1-17-9
Entity: https://changelogs.info/opencode
Event ID: `evt_2026-06-21_opencode_v1-17-9`
Licence: event synthesis © changelogs.info, CC BY 4.0. Linked sources belong to their vendors.