v30.3.0

Features

• [jest-config] Add defineConfig and mergeConfig helpers for type-safe Jest config (#15844)
• [jest-fake-timers] Add setTimerTickMode to configure how timers advance
• [*] Reduce token usage when run through LLMs (3f17932)

Fixes

• [jest-config] Keep CLI coverage output when using --json with --outputFile (#15918)
• [jest-mock] Use Symbol from test environment (#15858)
• [jest-reporters] Fix issue where console output not displayed for GHA reporter even with silent: false option (#15864)
• [jest-runtime] Fix issue where user cannot utilize dynamic import despite specifying --experimental-vm-modules Node option (#15842)
• [jest-test-sequencer] Fix issue where failed tests due to compilation errors not getting re-executed even with --onlyFailures CLI option (#15851)
• [jest-util] Make sure process.features.require_module is false (#15867)

Chore & Maintenance

• [*] Replace remaining micromatch uses with picomatch
• [deps] Update to sinon/fake-timers v15
• [docs] Update V30 migration guide to notify users on jest.mock() work with case-sensitive path (#15849)
• Updated Twitter icon to match the latest brand guidelines (#15869)