- Added `module.enableCompileCache()` API for on‑disk compile caching of modules, replacing the NODE_COMPILE_CACHE env var requirement.
- Introduced `vm.constants.DONT_CONTEXTIFY` option for `vm.createContext()` to create contexts with a freezable `globalThis` and improved performance.
- Implemented experimental test coverage thresholds (lines, branches, functions) that cause the process to exit with error if not met.
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