ReScript
@rescript-lang.org
https://rescript-lang.org/ Ship great products!
What happened at the latest ReScript Retreat? Check out our latest blog post to learn more: rescript-lang.org/blog/retreat...
ReScript Retreat 2026 Recap | ReScript Blog
Thirteen ReScript contributors met in Vienna to work on the compiler, build system, standard library, AI-assisted coding, and the wider ecosystem.
rescript-lang.org
We just released ReScript v12.2.0 github.com/rescript-lan...
Release 12.2.0 · rescript-lang/rescript
💥 New feature Stdlib: Added Array.zip, Array.unzip, Array.zipBy, and Array.partition. #8244 🐛 Bug fix Fix compiler crash (Fatal error: Parmatch.all_record_args) when matching empty dict/record p...
github.com
Still on fire. Still shipping. ReScript v13.0.0-alpha.1 is now on npm. github.com/rescript-lan...
Release 13.0.0-alpha.1 · rescript-lang/rescript
💥 Breaking Change Remove the legacy build system. Going forward, only the modern build system is supported, and the rescript-legacy command is not available anymore. #8186 #8212 Remove support for...
github.com
We are about to sunset the ReScript legacy build system. If you’re stuck, can’t upgrade, or worried about migration, we want to hear from you! Join the discussion: forum.rescript-lang.org/t/ann-sunset...
[ANN] Sunset of legacy build system
Dear community, For the next major release our plan is to sunset the rescript-legacy build system (internally named bsb) and completely replace it with the new build system announced in rescript 12. ...
forum.rescript-lang.org
ReScript 12.1 got released: github.com/rescript-lan...
Release 12.1.0 · rescript-lang/rescript
🚀 New Feature Add support for Set, Map, WeakSet and WeakMap to @unboxed. #8009 Reanalyze: add reactive incremental analysis (-reactive, -runs, -churn) and Mermaid pipeline dumping (-mermaid). #809...
github.com
Happy holidays from all of us! github.com/rescript-lan...
Release 12.0.2 · rescript-lang/rescript
🚀 New Feature Reanalyze: add parallel processing for CMT file analysis with new -parallel and -timing flags, plus benchmark infrastructure for performance testing. #8089 🐛 Bug fix Reanalyze: mak...
github.com
ReScript 12 is here! A major step toward a leaner, faster, simpler toolchain. This release refines the language and embraces ReScript’s own identity. Blog: rescript-lang.org/blog/release... Notes: github.com/rescript-lan... Huge thanks to everyone who helped move ReScript forward.
Announcing ReScript 12 | ReScript Blog
ReScript 12 arrives with a redesigned build toolchain, a modular runtime, and a wave of ergonomic language features.
rescript-lang.org
ReScript 12 RC5 is out. Hopefully the last RC before stable. Go try it: github.com/rescript-lan...
Release 12.0.0-rc.5 · rescript-lang/rescript
🐛 Bug fix Fix printing of tagged template literals. #8018 Fix printing of optional record fields in pattern matching errors. #8019 🏠 Internal Editor: resolve @rescript/runtime via environment va...
github.com
I was on the latest episode of @deadcode.website to talk about @rescript-lang.org! If you've heard the name and wondered what's going on with it in 2025, give the episode a listen! shows.acast.com/dead-code/ep...
Ground Zero-Cost Bindings (with Josh Vlk) | Dead Code
shows.acast.com
In the next version of our vscode plugin 🚀: github.com/rescript-lan...
So this crab jumped into our build system and things got out of hand. End result: a brand new, super fast ReScript build system. rescript-lang.org/blog/reforgi...
Reforging the ReScript Build System | ReScript Blog
ReScript 12 introduces a completely new build system that brings intelligent dependency tracking, faster incremental builds, and proper monorepo support.
rescript-lang.org
Been building a @rescript-lang.org MCP server lately, letting an LLM truly see a codebase. If you haven’t met ReScript before, this one’s still worth watching . It has a clear case of how localized MCP servers can lift developer tooling. youtube.com/watch?v=stIX... #rescript #mcp
I Built an MCP for My ReScript Project and My LLM Went Super Saiyan
YouTube video by nojaf
youtube.com
Thanks everyone who tried out our previous release candidate, your feedback has been super helpful. We’ve published another one: github.com/rescript-lan... Give it a spin and let us know what you think!
Release 12.0.0-rc.3 · rescript-lang/rescript
🐛 Bug fix Fix @directive on function level with async and multiple parameters. #7977 Fix fatal error for external with @as. #7978 💅 Polish Rewatch: plain output when not running in tty. #7970 St...
github.com
ReScript doesn’t have a Discord or any real-time chat. We keep all discussions on our forum: forum.rescript-lang.org How do you feel about that? Do you prefer thoughtful async discussions or do you miss live chat spaces like Discord?
ReScript Forum
ReScript is the language for folks who don't necessarily love JavaScript, but who still acknowledge its importance
forum.rescript-lang.org
ReScript 12.0.0 RC2 is out. Give it a spin and share feedback before the final release. github.com/rescript-lan...
Release 12.0.0-rc.2 · rescript-lang/rescript
💥 Breaking Change Replace binary operators with F#-style ~~~, ^^^, &&&, |||. #7894 🐛 Bug fix Fix: use configured Jsx module for constraining component return type. #7945 Undeprecate Js_OO module...
github.com
Help us test our new build system which comes enabled by default with the first ReScript v12 beta. npm create rescript-app@next forum.rescript-lang.org/t/ann-rescri...
[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 o...
forum.rescript-lang.org
Next up we have a talk about the new build system, Rewatch by Jaap Frolich.
Good morning! We are currently kicking off this year's ReScript Retreat with a talk about editor tooling by @z-th.bsky.social and @nojaf.com.
Amazing work by @hyeseong.kim !
Hyeseong Kim@hyeseong.kim · last yr.Upcoming ReScript (@rescript-lang.org) v12 move platform binaries into optional dependencies (e.g. rescript/linux-x64) To shrink the download & install size significantly! Download & Install size change: - Before: 67 MB | 197 MB - After: 15 MB | 48 MB (on a Linux x64 machine)
I wrote a blog post about using the React compiler with #rescript. You can check it out here: blog.nojaf.com/2025/03/23/r.... Things are going smoothly so far!
ReScript, ESLint and the React Compiler
ReScript, ESLint and the React Compiler
blog.nojaf.com
We just landed a new (experimental) feature for v12 - nested record definitions! Records is a corner stone in ReScript. However, they can't be nested without explicit definitions. Until now! Will be especially useful for deeply nested records (like options objects) not intended to be reused.
We are happy to announce that there will be another "ReScript Retreat" in 2025, once again in Vienna, Austria. Check out this new blogpost to get an idea what we did last year. rescript-lang.org/blog/retreats
ReScript Retreat | ReScript Blog
Accelerating ReScript development through meeting in-person.
rescript-lang.org
Looks like a massive perf improvement could land on the playground! Great job @hyeseong.kim !
Hyeseong Kim@hyeseong.kim · last yr.Experimented with wasm_of_ocaml build for @rescript-lang.org compiler It gave almost 3x faster performance than the original js_of_ocaml build! 🔥
Go read this amazing blog post from @vlkpack.com to learn more about all the tools that work great with #rescript!
Josh Vlk@vlkpack.com · last yr.I wrote a post for the @rescript-lang.org blog! ReScript is awesome because you can drop it into any JavaScript project and use any JavaScript runtime. I'm currently working on a project using Deno and it works great!
@z-th.bsky.social has made an amazing job introducing #ReScript, go watch this deeply interesting video!
Kris Jenkins@krisajenkins.bsky.social · last yr.Much as I like #TypeScript, I think there's still plenty of room for competition. We need something that feels broadly like #JavaScript, but shaves away the corner cases, compiles faster, and just…flows…better. Could that be #ReScript? Let's find out… youtu.be/yKl2fSdnw7w
