- Added automatic ES2015+, module, JSX, and CJSX support in all spec files, allowing require/import/export and use of installed node modules.
- Simplified support file handling: only cypress/support/index.js is auto-included; renamed supportFolder to supportFile with configurable option and ability to disable.
- Improved error handling for spec syntax errors with GUI line/column display and run‑time output; smarter scaffolding of project files.