OpenCode v1.18.9

OpenCode v1.18.9 was released on .

Summary

Core Bugfixes - Restored compatibility with legacy MCP SDK clients. Desktop Bugfixes - Fixed a Solid cleanup crash that could break navigation in the desktop app. - Fixed home session loading so th...

Release Context

  • This was the 170th OpenCode release of 2026 tracked by Havoptic.
  • It shipped 1 day after OpenCode v1.18.8 (July 28, 2026).

Shipped around the same time

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Release Notes

Core Bugfixes - Restored compatibility with legacy MCP SDK clients. Desktop Bugfixes - Fixed a Solid cleanup crash that could break navigation in the desktop app. - Fixed home session loading so the session list can update without suspending the whole page. Improvements - Removed the extra vertical borders from the V2 home projects view. - Added an opt-in V2 desktop sidecar backed by the bundled CLI service. - Added collapsible model provider sections in V2 settings. Thank you to 1 community contributor: - @roborew: - fix(desktop): patch @dnd-kit/solid to preserve core scroll plugins (38119)

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