Software1 hOctober 23, 2026, 17:38

VS Code 1.143: Copilot harness by default and model comparison

VS Code 1.143 ships with a focus on AI agents. The Copilot harness is now the default engine for new sessions, alongside a preview Compare Models feature with time and token scorecards, worktree cleanup, and faster large chats.

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VS Code 1.143: Copilot harness by default and model comparison

Copilot harness built on the Copilot SDK is now default for new sessions
Compare Models (Preview) runs a task on multiple models with time and token scoring
Opening a ~1,150-request chat dropped from 35.6 s to 9.0 s
Diagnostics highlight limit raised from 500 to 5,000 per file

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VS Code 1.141 tracks disk space wasted by dead agent sessions

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GitHub enforces Copilot default policy through October 26

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VS Code 1.143: Copilot harness by default and model comparison

GitHub Copilot launches HydraFusion: workflow plans instead of model picking

VS Code 1.141 tracks disk space wasted by dead agent sessions

GitHub enforces Copilot default policy through October 26

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