Highlights of the NativeScript 7.0 Release
This new release of NativeScript will no longer be targeting es5 and commonjs. Instead, it will be targeting es2017+. This will allow for faster and more performant code as well as the latest ES advancements available in es2017.
The array of JSON package files have now been consolidated into a single nativescript.config.ts or nativescript.config.js file rather than having them spread over several directories such as the root, src, and app directories.
You can check out the official NativeScript 7.0 Release release notes here to find out more details about this release here. Meanwhile, you can also get up to speed with the NativeScript roadmap here too.