test(webpack/react): remove experimental.layers

[colinaaa]

Summary by CodeRabbit

• Chores
  • Added changeset documentation for version tracking
  • Updated webpack build configuration to remove experimental feature flag

_{✏️ Tip: You can customize this high-level summary in your review settings.}

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).
• Changeset added, and when a BREAKING CHANGE occurs, it needs to be clearly marked (or not required).

[changeset-bot]

🦋 Changeset detected

Latest commit: c911f4f

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 0 packages

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

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[coderabbitai]

📝 Walkthrough

Walkthrough

A new changeset document is added to document the changes, and the experiments.layers configuration is removed from the React webpack plugin's test configuration file. No other configuration paths or functionality are altered.

Changes

Cohort / File(s)	Summary
Changeset \.changeset/icy-berries-shop\.md	New changeset document added with standard Markdown formatting
React Webpack Plugin Test Configuration packages/webpack/react-webpack-plugin/test/create-react-config\.js	Removed experiments.layers: true configuration block from the test config; module rules, resolve, and plugins remain unchanged

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

• Straightforward removal of an experimental configuration flag
• Changeset is a standard template addition
• No logic density or complex interdependencies

Possibly related PRs

• fix(rspeedy/react)!: remove experiments.layers #1951: Also removes experiments.layers: true configuration, indicating a coordinated deprecation effort
• feat(rspeedy/core)!: remove webpack support #1432: Removes webpack layer-related tests and provider support, part of the same webpack layers feature cleanup

Suggested labels

framework:React

Suggested reviewers

• upupming
• luhc228

Poem

A changeset blooms, so light and small,
Experiments fade—one layer falls,
The webpack config breathes anew,
No layers needed, just the true! 🐰✨

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately reflects the main change: removing the experimental.layers configuration from the React webpack plugin test file.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

📢 Thoughts on this report? Let us know!

[codspeed-hq]

CodSpeed Performance Report

Merging #1986 will not alter performance

_{Comparing colinaaa:colin/1207/layers (c911f4f) with main (f7256d5)}

Summary

✅ 63 untouched
⏩ 3 skipped¹

Footnotes

1. 3 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[relativeci]

Web Explorer

#6584 Bundle Size — 372.9KiB (0%).

c911f4f(current) vs f7256d5 main#6568(baseline)

Bundle metrics  no changes

	Current #6584	Baseline #6568
Initial JS	146.32KiB	146.32KiB
Initial CSS	32.4KiB	32.4KiB
Cache Invalidation	0%	48.3%
Chunks	8	8
Assets	8	8
Modules	230	230
Duplicate Modules	16	16
Duplicate Code	2.97%	2.97%
Packages	4	4
Duplicate Packages	0	0

Bundle size by type  no changes

	Current #6584	Baseline #6568
JS	243.52KiB	243.52KiB
Other	96.98KiB	96.98KiB
CSS	32.4KiB	32.4KiB

Bundle analysis report Branch colinaaa:colin/1207/layers Project dashboard

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[relativeci]

React Example

#6424 Bundle Size — 236.9KiB (0%).

c911f4f(current) vs f7256d5 main#6408(baseline)

Bundle metrics  no changes

	Current #6424	Baseline #6408
Initial JS	0B	0B
Initial CSS	0B	0B
Cache Invalidation	0%	0%
Chunks	0	0
Assets	4	4
Modules	162	162
Duplicate Modules	65	65
Duplicate Code	46.74%	46.74%
Packages	2	2
Duplicate Packages	0	0

Bundle size by type  no changes

	Current #6424	Baseline #6408
IMG	145.76KiB	145.76KiB
Other	91.14KiB	91.14KiB

Bundle analysis report Branch colinaaa:colin/1207/layers Project dashboard

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