The title "Angular 4 will be the next version of Angular" had me ready to believe they were announcing another breaking change as big as Angular 1 -> Angular 2. (The blog post's title is "Ok... let me explain: it's going to be Angular 4").<p>It's much more reasonable though: they're committed to using Semver, so even a minor breaking change (like upgrading Typescript) will bump the version number. So they're expecting the version numbers not to matter as much anymore, similar to how you no longer think of the version number of Chrome or Firefox too often.<p>And so they are asking the community to just call it "Angular", not "Angular 1", "Angular 2" and "Angular 4". I do feel that this will make it harder to search for information, documentation or libraries specifically related Angular 1 though, if Angular 2+ is now just going to be called "Angular", much like all the Angular 1 specific stuff.