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IDE plugins: v2.12.4: Adds support for GPT-5.2-Codex with four reasoning efforts (low, medium, high, and xhigh).

Product: IDE plugins

Adds support for GPT-5.2-Codex with four reasoning efforts (low, medium, high, and xhigh).

What changed

  • Adds support for GPT-5.2-Codex with four reasoning efforts (low, medium, high, and xhigh).
  • GPT-5.2-Codex is OpenAI’s latest model designed for agentic coding.
  • It excels at working in large codebases over long sessions.
  • For most tasks, we recommend using the medium reasoning effort.
  • Windsurf now supports Agent Skills for Cascade.
  • Fixed Cascade panel occasionally going blank during idle periods.
  • Fixed language server process not terminating when IDE is closed.
  • Fixed keyboard shortcuts on Rider.

Source

Why it matters

If you use IDE plugins, skim the official notes above and decide what to try in your next session. Tag the right surface — Cloud vs Desktop vs CLI — before you change workflows.

Fan coverage from Devin Central — not an official Cognition announcement. Devin is a trademark of Cognition.