How relevant is learning Typescript version 1.8 in 2019?

Question

typescript

My company gave me access to the Pluralsight site. And it is the main source for video courses. I cannot use other sources, since this learning platform is a customer requirement.
The first topic to learn is Typescript. An important condition for the search: entry level. I found two suitable courses "TypeScript Fundamentals" (Updated 25 Mar 2016; Typescript 1.8) and "Getting Started with TypeScript" (Updated May 18, 2017; Typescript 2.2). The first course has significantly more reviews, but the overall score for both is the highest. The current version of Typescript is 3.4. I have seen quite a long list of changes from Typescript version 1.8 to version 3.4. I'm afraid that many things that I learn from the course will actually turn out to be outdated and I won't be able to use it in a real project.
So my question is - how up-to-date will my knowledge of Typescript 1.8 be now? Or are the differences really not so significant and this knowledge will be enough for me to get a base?

Answer 1

It's better to learn the latest version of TypeScript.
See What's new for the order in which new versions are released.
If you are ready to write more "disciplined" JavaScript.
If you plan to develop with Angular.
TypeScript is up to date. I recently started learning it myself and using it is more fun when developing than pure JS, which is disgusting. The output is still the same JS (it is compiled by tsc), but thanks to strong typing, a large number of errors are eliminated even at the stage of writing the code (which does not compile with incompatible types (except for any)).

Answer 2

Check out the documentation . This is more than enough.