This release features a ton of CSS formatting fixes as well as support for some new TypeScript features, in addition to some general bugfixes for other languages.

Since the last release, the Prettier website has gotten an all-new design thanks to @orta!

Facebook is 💯% Prettier​

Another exciting announcement is that all the JavaScript files in the Facebook codebase have now been converted to Prettier! What's mind-blowing is that there hasn't been a concerted push to convert the codebase to Prettier, we just added the tooling in place and documentation on how to migrate a folder to Prettier and people just started converting their piece of the codebase.

In 8 months, 75% of the codebase was organically converted and last week we did a final push to convert the rest and enforce that every file from now on is using Prettier! It shows that Prettier is robust to support all the crazy edge cases you can imagine and also that it provides a lot of value given the crazy adoption rate.

Happy Prettier-versary! It's pretty incredible that Prettier was only released a year ago and has already seen such a massive adoption and great number of contributors. For this special release, we're going to do a small retrospective around the project.

It's also an exciting release in itself because Prettier now has partial support for .vue files and the internals have been refactored such that there's a proper plugin API in order to support different languages!

This release adds an option for arrow function parens in arguments, support for the new JSX fragment syntax (<>), support for .editorconfig files, and nice additions to our GraphQL and Markdown support.

This release adds Markdown support, a new --insert-pragma flag, fixes a number of formatting issues, adds support for some new experimental operators, and improves our editor integration support.

This release features some bugfixes and tweaks around JSX, TypeScript, CSS, and JavaScript formatting, as well as a couple new features.

This release adds configuration file support to Prettier, as well as some significant enhancements to JSX printing.

This release adds GraphQL formatting support, CSS-in-JS (including styled-components), and JSON support to Prettier.

This release introduces support for TypeScript, CSS, Less, and SCSS languages to Prettier!

This post provides an update to Facebook's adoption or Prettier, outlines our progress on TypeScript, and details some of the improvements and fixes included in the 1.3.0 release of Prettier.

1.0 is not the end of prettier, we're going to continue to work on the long tail of formatting issues in order to make it an awesome JavaScript code formatter. You should expect minor version releases like this one to change small things and edge cases but nothing major or controversial.