It's no longer a piece of news: Angular 4's out (since the 23rd of March)! The release followed the team's announcement that they would start implementing Semantic Versioning. Have you tried it yet? If not, then let me “do the honors” for you: let me stir up your curiosity with a “teaser” before you take it for a test drive! A “teaser” that will glide you through all its highlights, new performance improvements, under the hood changes and a focus on those features that will make migrating to this new version of Angular so very smooth.  The very first “change” is that... there is no breaking change!