chore(build): upgrade webpack 4 to webpack 5#742
Merged
jackiejou merged 2 commits intobox:masterfrom Apr 29, 2026
Merged
Conversation
Upgrade webpack and related loaders/plugins to webpack 5: - webpack 4 -> 5, webpack-cli 3 -> 5, webpack-dev-server 3 -> 5 - mini-css-extract-plugin 0.9 -> 2, css-loader 3 -> 7 - postcss-loader 3 -> 8, sass-loader 8 -> 16, style-loader 1 -> 4 - babel-loader 8 -> 9 - Replace optimize-css-assets-webpack-plugin with css-minimizer-webpack-plugin - Replace raw-loader/file-loader with webpack 5 asset modules - Remove terser-webpack-plugin (webpack 5 built-in) - Update devServer config for webpack-dev-server 5 API - Remove deprecated --colors CLI flag This unblocks WEBAPP-49218 by enabling native support for package.json exports field, required by @box/blueprint-web-assets and other modern @box/* packages.
Webpack 5 sets process.env.NODE_ENV via mode option. Remove duplicate definition from DefinePlugin to fix conflicting values warning.
ahorowitz123
approved these changes
Apr 29, 2026
jackiejou
changed the title
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Upgrade webpack and related loaders/plugins to webpack 5:
This unblocks Blueprint adoption by enabling native support for package.json exports field, required by @box/blueprint-web-assets and other modern @box/* packages.