Features

• [jest-config] [BREAKING] Make snapshotFormat default to escapeString: false and printBasicPrototype: false (#13036)
• [jest-environment-jsdom] [BREAKING] Upgrade to jsdom@20 (#13037)

Chore & Maintenance

• [*] [BREAKING] Drop support for Node v12 and v17 (#13033)
• [jest-leak-detector] Remove support for weak-napi (#13035)

Full Changelog: https://github.com/facebook/jest/compare/v28.1.3...v29.0.0-alpha.0