The ESLint team released eslint-rspack-plugin 5.0.0, transitioning the integration tool into a pure ECMAScript Module (ESM) package to align with modern JavaScript bundling ecosystems. According to official project announcements, this major version update requires users to run Node.js version 18.18.0 or higher, matching the current baseline requirements of ESLint v9.
Understanding the Pure ESM Transition in Version 5.0.0
The shift to a pure ESM package means that CommonJS require() syntax is no longer supported directly within the plugin’s configuration files. Developers must adopt standard ESM import statements. According to the release notes, this architectural change removes internal compatibility layers, reducing maintenance overhead and ensuring seamless integration with modern build tools like Rspack and Webpack.
Projects consuming version 5.0.0 must ensure their surrounding build configuration and package configuration files accommodate ESM standards. Specifically, packages should include "type": "module" in their package.json or utilize compatible module resolution settings. This update synchronizes the plugin’s codebase with the broader JavaScript community’s migration away from legacy CommonJS modules.
Rspack Ecosystem Alignment and Compatibility
Rspack, the high-performance Rust-based web bundler, relies heavily on modern plugin architectures to maintain speed during development and production builds. By aligning with this ecosystem, eslint-rspack-plugin 5.0.0 ensures that linting processes run concurrently without blocking ESM-based module graphs.
According to repository documentation, upgrading from version 4.x to 5.0.0 involves modifying configuration imports across build scripts. Developers previously utilizing default CommonJS exports must refactor their configuration files to use explicit named or default ESM imports. This adjustment prevents runtime loading errors caused by mixed module systems during the bundling phase.
Upgrade Path and Requirements
- Node.js Requirement: Minimum version bumped to 18.18.0 to support native ESM features.
- ESLint Compatibility: Designed for primary use with ESLint v9 and newer iterations.
- Syntax Update: Replacement of
require()withimportsyntax in project setup files.
Maintenance teams managing large-scale enterprise repositories should audit their dependency trees before executing the upgrade. Ensuring all plugins within the Rspack pipeline support ESM prevents compilation halts. The release establishes a standardized foundation for future performance optimizations within fast-bundling pipelines.