OpenCode v1.18.21

OpenCode v1.18.21 was released on .

Summary

Core Bugfixes - Continue responses when a model reports an unknown finish reason instead of stopping early - Route Vertex AI eu and us multi-region Gemini requests through REP endpoints Desktop Bug...

Release Context

  • This was the 182nd OpenCode release of 2026 tracked by Havoptic.
  • It shipped the same day as OpenCode v1.18.20 (August 21, 2026).

Shipped around the same time

Within 3 days of this release, other AI coding tools also shipped:

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Release Notes

Core Bugfixes - Continue responses when a model reports an unknown finish reason instead of stopping early - Route Vertex AI eu and us multi-region Gemini requests through REP endpoints Desktop Bugfixes - Keep file search results visible while the next search is loading - Register the archive session command in both desktop layouts (@NathanTCode) Thank you to 1 community contributor: - @NathanTCode: - fix(app): register archive session command in both layouts (41741)

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