Prettier 3.10 ships new Flow/JS syntax and a Zig-powered Yuku plugin
Vjeux · x · 2026-11-12
Prettier 3.10 adds support for new Flow syntax (template literal and constructor types, mapped-type modifiers, abstract/override members, inline import types) and the latest JavaScript proposals.
The headline feature is a new official plugin, @prettier/plugin-yuku, powered by Yuku — a high-performance JS/TS compiler toolchain written in Zig — exposing yuku and yuku-ts parsers. Install it separately and register it in .prettierrc. The release also includes fixes across JavaScript, TypeScript, Markdown, and HTML.
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