Summary

All 14 GitHub Actions workflow files in this repository currently use Node.js 20. Node.js 20 reached end-of-life in April 2026. Additionally, cspell v10 (dependabot PR #1346) drops Node 20 support entirely, blocking that upgrade.

Motivation

• cspell 10 compatibility: cspell v10.0.0 requires Node.js >= 22. The current spell-check workflow fails on Node 20 (see PR chore(deps-dev): bump the npm-dependencies group across 1 directory with 2 updates #1346).
• Node 20 EOL: Node.js 20 is at end-of-life as of April 2026.
• Runner support: GitHub Actions ubuntu-latest runners cache Node.js 20, 22, and 22. Node 22 is the current active LTS.

Scope

Update
ode-version\ in all 14 workflow files from \20\ to \22:

• \copilot-setup-steps.yml\ (line 41)
• \deploy-docs.yml\ (line 49)
• \docusaurus-tests.yml\ (line 30)
• \�xtension-marketplace-publish.yml\ (line 46)
• \�xtension-package.yml\ (line 95)
• \markdown-link-check.yml\ (line 30)
• \markdown-lint.yml\ (line 31)
• \plugin-package.yml\ (line 64)
• \plugin-validation.yml\ (line 30)
• \pr-validation.yml\ (line 310)
• 
  elease-prerelease-pr.yml\ (line 159)
• 
  elease-stable.yml\ (line 295)
• \spell-check.yml\ (line 31)
• \ able-format.yml\ (line 31)

Also evaluate and update if needed:

• \copilot-setup-steps.yml\ (setup-steps for Copilot coding agent)
• .devcontainer/\ Node.js version (per Environment Synchronization guidance in copilot-instructions.md)

Acceptance Criteria

• All workflow files use Node.js 22
• Devcontainer and copilot-setup-steps versions are synchronized
• All CI checks pass on a PR with these changes
• Dependabot cspell v10 PR chore(deps-dev): bump the npm-dependencies group across 1 directory with 2 updates #1346 can merge after this lands