[ca] CLI Version Updates: Claude Code 2.1.38, Copilot CLI 0.0.406, Playwright Browser v1.58.2

[github-actions]

Summary

Three CLI tools have new versions available. All updates include bug fixes and improvements without breaking changes.

• Claude Code: 2.1.34 → 2.1.38 (4 versions, published Feb 7-10)
• Copilot CLI: 0.0.405 → 0.0.406 (1 version, published Feb 7)
• Playwright Browser: v1.58.1 → v1.58.2 (1 version, published Feb 6)

Update Priority: Medium
Breaking Changes: None
Risk Level: Low

Update: Claude Code (2.1.34 → 2.1.38)

Timeline: Feb 7-10, 2026 (4 versions over 3 days)

New Features

• Effort Level Control (v2.1.38): New --effort (level) flag to control effort level (low, medium, high) for the current session

View Version History

Release Dates:

• v2.1.38: 2026-02-10 00:06 UTC
• v2.1.37: 2026-02-07 18:39 UTC
• v2.1.36: 2026-02-07 17:25 UTC
• v2.1.35: Not available in NPM registry

View CLI Changes

New Command-Line Flag:

+ --effort (level)                                  Effort level for the current session (low, medium, high)

This new flag allows users to control the computational effort Claude applies to solving problems, enabling fine-tuned performance vs. speed tradeoffs.

Help Output Comparison:

• Compared v2.1.34 with v2.1.38
• Only change detected: Addition of --effort flag
• No deprecated or removed features

Impact Assessment

• Risk: Low
• Affects: Session configuration options
• Migration: None required - new optional flag

Recommendations

1. Update Priority: Medium - new effort control feature may be useful for performance tuning
2. Testing Strategy: Verify --effort flag works in CI environments
3. Rollout: Safe to deploy immediately

Package Links:

• NPM Package: https://www.npmjs.com/package/`@anthropic-ai/claude-code`
• Latest Version: https://www.npmjs.com/package/`@anthropic-ai/claude-code`/v/2.1.38

---

Update: Copilot CLI (0.0.405 → 0.0.406)

Timeline: Feb 5-7, 2026 (2 days between releases)

Breaking Changes

None

Key Features

• Claude Opus 4.6 Fast (Preview): Added support for the latest Claude model
• Markdown Formatting: Now displays in non-interactive mode output
• Subscription Warning: Display warning when user has no Copilot subscription
• Plugin Commands → Skills: Commands from plugins are now translated into skills
• Changelog Command: New /changelog command to view release notes
• Plugin Marketplace: plugin marketplace add now accepts URLs as sources
• Experimental Flag: --no-experimental flag disables experimental features

View Full Changelog (0.0.406)

From https://github.com/github/copilot-cli/blob/main/changelog.md:

0.0.406 - 2026-02-07

New Features:

• Add support for Claude Opus 4.6 Fast (Preview)
• Markdown formatting displays in non-interactive mode output
• Display warning when user has no Copilot subscription
• Commands from plugins are now translated into skills
• Add /changelog command to view release notes
• plugin marketplace add accepts URLs as sources
• --no-experimental flag disables experimental features

Improvements:

• CLI interface renders without extra blank line
• /mcp show displays enabled/disabled status for MCP tools
• MCP tool responses now include structured content (images, resources) for richer UI display in VS Code

0.0.405 - 2026-02-05

Bug Fixes:

• Plugin and marketplace names support uppercase letters
• /experimental shows help screen listing experimental features
• Fix SQL tool disconnects
• Plugins can bundle LSP server configurations

View CLI Discovery

Unable to Install Locally: Permission restrictions prevented installing Copilot CLI 0.0.406 in the CI environment to compare help outputs.

Changelog Analysis:

• New Command: /changelog - View release notes
• New Flag: --no-experimental - Disable experimental features
• Updated Command: /mcp show - Now shows enabled/disabled status
• Model Support: Claude Opus 4.6 Fast (Preview) added

Repository Access: Successfully accessed https://github.com/github/copilot-cli to retrieve full changelog

Impact Assessment

• Risk: Low
• Affects: Non-interactive mode output formatting, plugin system, MCP tool display, model options
• Migration: None required - all changes are additive or improvements

Recommendations

1. Update Priority: Medium - includes new Claude Opus 4.6 Fast model support
2. Testing Strategy:
   • Test non-interactive mode markdown rendering
   • Verify /changelog command functionality
   • Test plugin-to-skill translation
   • Validate --no-experimental flag behavior
3. Rollout: Safe to deploy after basic functional testing

Package Links:

• NPM Package: https://www.npmjs.com/package/`@github/copilot`
• Repository: https://github.com/github/copilot-cli
• Changelog: https://github.com/github/copilot-cli/blob/main/changelog.md
• Latest Version: https://www.npmjs.com/package/`@github/copilot`/v/0.0.406

---

Update: Playwright Browser (v1.58.1 → v1.58.2)

Timeline: Published Feb 6, 2026

Breaking Changes

None

Bug Fixes

From https://github.com/microsoft/playwright/releases/tag/v1.58.2:

• fix(trace viewer): make paths via stdin work microsoft/playwright#39121: Fix trace viewer to make paths via stdin work
• fix: do not force swiftshader on chromium mac microsoft/playwright#39129: Fix to not force swiftshader on chromium mac

View Full Release Notes

Highlights

• fix(trace viewer): make paths via stdin work microsoft/playwright#39121 fix(trace viewer): make paths via stdin work
• fix: do not force swiftshader on chromium mac microsoft/playwright#39129 fix: do not force swiftshader on chromium mac

Browser Versions

• Chromium 145.0.7632.6
• Mozilla Firefox 146.0.1
• WebKit 26.0

Previous Release (v1.58.1):

• fix(msedge): fix local network permissions microsoft/playwright#39036 fix(msedge): fix local network permissions
• chore: update cft download location microsoft/playwright#39037 chore: update cft download location
• chore(webkit): disable frame sessions on fronzen builds microsoft/playwright#38995 chore(webkit): disable frame sessions on frozen builds

Impact Assessment

• Risk: Low
• Affects: Trace viewer functionality, Chromium rendering on macOS
• Migration: None required - bug fixes only

Recommendations

1. Update Priority: Low - primarily bug fixes for edge cases
2. Testing Strategy:
   • Test trace viewer with stdin paths if used in workflows
   • Verify chromium rendering on macOS if applicable
3. Rollout: Safe to deploy immediately

Package Links:

• Docker Image: mcr.microsoft.com/playwright:v1.58.2
• Repository: https://github.com/microsoft/playwright
• Release Notes: https://github.com/microsoft/playwright/releases/tag/v1.58.2

---

Implementation Status

✅ Completed:

1. ✅ Version research and changelog analysis
2. ✅ Updated pkg/constants/constants.go with new versions:
   • DefaultClaudeCodeVersion: "2.1.34" → "2.1.38"
   • DefaultCopilotVersion: "0.0.405" → "0.0.406"
   • DefaultPlaywrightBrowserVersion: "v1.58.1" → "v1.58.2"
3. ✅ Attempted make recompile (build error due to missing Go environment, but constants updated)

⚠️ Pending:

• Workflow regeneration will occur automatically on next workflow run
• Integration testing recommended for Copilot CLI changes

References

• §21864949187 - Version check workflow run

AI generated by CLI Version Checker

• expires on Feb 12, 2026, 12:36 PM UTC

[github-actions]

This issue was automatically closed because it expired on 2026-02-12T12:36:37.214Z.

Closed by Workflow