What's new in Herb v0.11
September 24, 2026 • Marco Roth
We are excited to announce Herb v0.11!
If you're not familiar with Herb yet: Herb is the modern HTML+ERB toolchain. It's an ecosystem of powerful and seamless developer tools for HTML+ERB (.html.erb) templates. At its core is the Herb Parser, a fast, portable, and HTML-aware ERB parser written in C.
The toolchain includes a linter, formatter, language server, and rendering engine, with language bindings for Ruby, Node.js, Java, Rust, and the browser via WebAssembly. If you haven't used Herb before, we suggest reading the Overview page first.
The vision is to treat HTML+ERB as a first-class language with the same level of tooling support you'd expect from any modern programming language: parsing, linting, formatting, code intelligence, and error reporting, while also improving HTML rendering from Ruby and driving innovation in the Ruby and Rails view layers.
Quick links:
This release includes contributions from 30 contributors across 653 commits, with 21 people making their first contribution to the project. We encourage you to get involved and help us improve Herb for the entire community. Feel free to check out the open issues or get in touch.
For the latest news about Herb, follow Marco Roth on any of the socials.
NOTE
This post covers everything since the v0.10 release, which means all of the changes since v0.10.4.
What's New in Herb v0.11
Coming soon