Hey everyone,

CoffeeScript 2.0.0-alpha1 is released! Install it via:npm install coffeescript@next

You may notice that it’s not atcoffee-script. The powers that be at NPM were kind enough to release thecoffeescript package name to us. Since no one really spells CoffeeScript with a hyphen anymore, it seemed a better choice. It has both the old versions and 2.0.0-alpha1, and will be the home for future versions.coffee-script will stay 1.x-only, in case anyone installscoffee-script and expects a compiler that outputs ES3.

Since thelast update, as of 2017-02-21 the following has been merged into thejashkenas/coffeescript2 branch:

• Classes, including idiomatic output for both theclass andsuper keywords, thanks to@connec.
• Redesigned docs for v2, thanks to@GeoffreyBooth.
• Refactored Cake tasks adding watch modes to building the compiler, thanks to@GeoffreyBooth.

As of December, we had accomplished:

• Tagged template literals, thanks to@greghuc.
• Interpolated strings are now output as template literals (ES backtick syntax), thanks to@greghuc.
• Triple-backtick operator and escaped backticks in embedded JavaScript, thanks to@GeoffreyBooth.
• The browser tests work again, thanks to@GeoffreyBooth.

And as of November, we had accomplished:

• Async/await, thanks to@GabrielRatener.
• Arrow functions, function default parameters and function rest parameters, thanks to@GeoffreyBooth.
• Splats in arrays and function calls are output using ES2015 syntax, thanks to@connec.
• Computed properties are output using ES2015 syntax, thanks to@connec.
• Octal and binary literals are output as-is, thanks to@JimPanic.
• CoffeeScript is stricter about whitespace thanks to@eelco, andLiterate CoffeeScript now understands Markdown thanks to@billymoon.
• Support forES2015for…of isimplemented, thanks to@atg.
• Bugs were fixed by@alangpierce,@shreeve,@JimPanic,@GeoffreyBooth and others. Also thanks for feedback from@lydell and@jashkenas.

There are still a handful of features yet to implement, includingdestructuring andgetters/setters. Help with those is most welcome, but if you don’t have time for that, you could also help out by trying 2.0.0-alpha1 in your projects. Please review thebreaking changes first, and if you think there’s a bug, pleaseopen an issue with “[CS2]“ in the title. Pleasedon’t comment bug reports on this thread. Thanks!