Stream: announcements

Topic: Jan 2026 - Are we Roc'n the **new** compiler yet?

Luke Boswell (Jan 01 2026 at 00:08):

Are we Roc'n the new compiler yet?

Docs

• Richard's getting started notes for AoC
• language reference started, but missing a lot of detail
• examples need updating, not yet started
• exercism track needs updating, not yet started
• tutorial needs an update, not yet started

Roc CLI

• roc path/to/app.roc :check: uses an interpreter for fast startup until dev backends ready
• roc build :check: uses an interpreter shim until llvm backend ready #8780
• roc check :check:
• roc fmt :check:
• roc test :check: basic implementation but usable, needs some love
• roc repl WIP #8854
• roc docs not yet started
• roc glue not yet started -- required for authoring more complicated platform API's
• roc tooling -- for building tooling for Roc using syntax or IR's

Platforms

• Zig template :check:
• Rust template :check:
• basic-cli migration #413 usable if built from source
• No other platforms migrated yet

Tooling

• LSP available in the cli using roc experimental-lsp (needs documentation and more features)
• Editor integrations need updating

Packages

• Nil packages have been migrated or released yet

Luke Boswell (Jan 01 2026 at 00:23):

This is a quick snapshot of where things are at right now. Roc has been moving very quickly, so the above will probably be way out of date in a few days, but I wanted to give an overview for folks who may not be able to follow every message in Zulip.

:smiley:

Niclas Ahden (Jan 01 2026 at 00:36):

Just waiting for basic-cli, packages, and JSON encode/decode, then I’m all-in :)

Rick Hull (Jan 23 2026 at 18:08):

@Niclas Ahden https://github.com/rickhull/roc-init shows how to get basic-cli going (migrate-zig-compiler branch). It may not have all of your required features

Eli Dowling (Jan 26 2026 at 17:53):

tree-sitter-roc is updated to support the latest roc syntax! :tada:
Grab the latest grammar and query files here: https://github.com/faldor20/tree-sitter-roc

I also overhauled the queries in the repo, so we now have a unified set of queries and we template in the query names for each editor. This will help keep the queries in sync, which was always a big issue in the past.
I've not tested any editor other than helix, but neovimmers and emacsers let me know if anything breaks.
@Alf Richter for zed hopefully you can use the templated queries, I'm generating them, but I'm not sure they're all correct.
image.png

Luke Boswell (Jan 26 2026 at 21:10):

@Eli Dowling I'll have a crack at updating the Zed extension for @Alf Richter

Luke Boswell (Jan 26 2026 at 21:23):

Draft PR here https://github.com/h2000/zed-roc/pull/8

It appears we broke the LSP goto def and outline functionality recently. Just looking into that before I mark this as ready. But the syntax highlighting looks great!

Luke Boswell (Jan 26 2026 at 21:39):

Found and resolved the LSP errors, that is all in Roc so will push a fix over there.

Luke Boswell (Jan 26 2026 at 22:40):

@Eli Dowling https://github.com/faldor20/tree-sitter-roc/issues/39 bug report for nested symbol outlines

Last updated: Feb 20 2026 at 12:27 UTC