[ANN] ReScript 12 beta release / call for testing

Hello ReScripters!

We are happy to announce that we finally released the first beta of ReScript 12 .

This comes with the new build system (codename rewatch) enabled by default.

Please try it out in your projects and report any issues you find.

Installation

1. npm create rescript-app@next
2. Select 12.0.0-beta.1 and proceed the installation process
   (this works in existing projects as well, package.json required)

or, for purists:

npm install rescript@next

Opt-out to legacy build system

ReScript 12 still comes with the old, ninja-based build system (bsb). To use it, simply add legacy before the command.

E.g. rescript build → rescript legacy build

This can also be useful to test if something does not work anymore with the newer build system that worked fine with the older one (or vice versa).

Outlook

Please share and test as much as you can. Our new goal is to release v12 in September, but there will be release candidate versions still in July or August.

Happy hacking!