15. What's New in Angular 5?

 The Angular 5 Contains bunch of new features, performance improvements and lot of bug fixes and also some surprises to Angular lovers.

1. Make AOT the default
2. Watch mode
3. Type checking in templates
4. More flexible metadata
5. Remove *.ngfactory.ts files
6. Better error messages
7. Smooth upgrades
8. Tree-Shakeable components
9. Hybrid Upgrade Application
10.And so on...


Angular 5 Performance Improvements -
1. Use of addEventListener for the faster rendering and it is the core functionality.
2. Update to new version of build-optimizer.
3. Added some Improvements on the abstract class methods and interfaces
4. Remove decorator DSL which depends on Reflect for Improve the Performance of Apps and This is the core functionality.
5. Added an option to remove blank text nodes from compiled templates
6. Switch Angular to use Static-Injector instead of Reflective-Injector.
7. Improve the applications testing.
8. Improve the performance of hybrid applications
9. Improvements on Lazy loading for Angular
10.And so on...