●Change8

Migrating to Webpack v5.108.0

Version v5.108.0 introduces 1 breaking change. This guide details how to update your code.

Released: 6/25/2026

1
Breaking Changes
1
Migration Steps
9
Affected Symbols

⚠️ Check Your Code

If you use any of these symbols, you need to read this guide:

module.parser.html.sourcesmodule.parser.html.templateoutput.environment.logicalAssignmentoutput.environment.letoptimization.inlineExportscompiler.platformoutput.strictModuleResolutionlocalIdentNamegetCondition

Breaking Changes

●Issue #1

CSS `[hash]` in `localIdentName` now resolves to the local ident hash, matching css-loader behavior. Users relying on `[hash]` for the module hash must switch to using `[modulehash]`.

Migration Steps

  1. 1
    If you relied on `[hash]` in `localIdentName` to resolve to the module hash, change it to use `[modulehash]` instead.

Release Summary

This release introduces significant enhancements for module resolution, targeting environments like Bun and Deno, alongside major improvements to tree-shaking, HTML module parsing, and runtime code generation using modern JavaScript features like `let`/`const`.

Need More Details?

View the full release notes and all changes for Webpack v5.108.0.

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