OpenCode v1.18.11 fixes MCP reconnect loops and desktop stability issues

SST

Tools official 1 src. ~1 min

OpenCode v1.18.11 (Aug 1, 2026) stops MCP SSE connections from getting stuck in reconnect loops after server error responses, fixes provider configs using interleaved reasoning fields like reasoning_text, and improves desktop app stability (external links open in system browser, fixed stale session tab state, prevented file tree tab clipping).

Why it matters

Incremental reliability fixes for one of the main open-source Claude Code/Codex alternatives, particularly around MCP server connection stability which affects tool-use reliability.

Importance: 1/5

Patch release with bug fixes only, single official source.

opencode coding-agent mcp desktop bug-fix

Sources

official v1.18.11 · sst/opencode