Collapse RC changelog entries into 16.4.0.rc.1 section

[justin808]

Summary

• Moved all entries from ### [Unreleased] into a new ### [16.4.0.rc.1] - 2026-02-12 section
• Merged duplicate #### Fixed headings into a single section
• Updated version diff links at the bottom of the changelog

Test plan

• Verify changelog formatting renders correctly on GitHub
• Verify version diff links resolve to correct comparisons

🤖 Generated with Claude Code

Summary by CodeRabbit

• New Features
  • Auto-registration for Redux stores and a new create-react-on-rails-app CLI tool.
• Bug Fixes
  • Fixes to precompile hook detection, hot-reload guard behavior, and generator environment handling.
• Improved
  • Smarter duplicate registration warnings recategorized as an improvement.
• Chores
  • Released version 16.4.0.rc.1 and updated changelog/version comparison links.

[coderabbitai]

Walkthrough

Adds a new release-candidate section [16.4.0.rc.1] to CHANGELOG.md with Added/Fixed/Improved entries (Precompile Hook detection, HMR Guard, Generator environment handling, Redux auto-registration, create-react-on-rails-app CLI), recategorizes one warning entry, and updates Unreleased links/version table.

Changes

Cohort / File(s)	Summary
Changelog Management CHANGELOG.md	Inserted a new RC section [16.4.0.rc.1] under Unreleased with Added (Redux auto-registration, create-react-on-rails-app CLI), Fixed (Precompile Hook detection, HMR Guard behavior), and Improved (Generator env handling, recategorized duplicate registration warnings) entries; updated Unreleased links and version table to reference v16.4.0.rc.1.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 I hopped through lines of change and cheer,
New RC sprouted, clear and near,
Hooks and guards and stores aligned,
A CLI carrot I did find,
Sniffing links — the path's defined. 🥕

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: consolidating RC changelog entries into a specific version section (16.4.0.rc.1).
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Merge Conflict Detection	✅ Passed	✅ No merge conflicts detected when merging into master

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch jg/collapse-rc-changelog

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[greptile-apps]

Greptile Overview

Greptile Summary

Prepared changelog for 16.4.0.rc.1 release by moving all unreleased entries into a dated release section and updating version comparison links.

• Consolidated all entries from ### [Unreleased] section into new ### [16.4.0.rc.1] - 2026-02-12 section
• Merged duplicate #### Fixed headings that were split across the unreleased section
• Updated [unreleased] link to compare from v16.4.0.rc.1...master instead of v16.3.0...master
• Added new [16.4.0.rc.1] link comparing v16.3.0...v16.4.0.rc.1

The changelog follows proper Keep a Changelog format with clear section organization (#### Added, #### Fixed, #### Pro).

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• This is a pure documentation change that correctly formats the changelog for a release candidate version. The changes follow established changelog conventions, properly consolidate entries, and correctly update version comparison links.
• No files require special attention

Important Files Changed

Filename	Overview
CHANGELOG.md	Properly formatted release candidate section created by moving unreleased entries and updating version links

_{Last reviewed commit: d7f9fc6}