chore(deps): update dependency svelte to v5.43.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
svelte (source)	5.41.3 -> 5.43.0

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Release Notes

sveltejs/svelte (svelte)

v5.43.0

Compare Source

Minor Changes

• feat: out-of-order rendering (#​17038)

Patch Changes

• fix: settle batch after DOM updates (#​17054)

v5.42.3

Compare Source

Patch Changes

• fix: handle <svelte:head> rendered asynchronously (#​17052)

• fix: don't restore batch in #await (#​17051)

v5.42.2

Compare Source

Patch Changes

• fix: better error message for global variable assignments (#​17036)

• chore: tweak memoizer logic (#​17042)

v5.42.1

Compare Source

Patch Changes

• fix: ignore fork discard() after commit() (#​17034)

v5.42.0

Compare Source

Minor Changes

• feat: experimental fork API (#​17004)

Patch Changes

• fix: always allow setContext before first await in component (#​17031)

• fix: less confusing names for inspect errors (#​17026)

v5.41.4

Compare Source

Patch Changes

• fix: take into account static blocks when determining transition locality (#​17018)

• fix: coordinate mount of snippets with await expressions (#​17021)

• fix: better optimization of await expressions (#​17025)

• fix: flush pending changes after rendering failed snippet (#​16995)

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, check this box

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This PR was generated by Mend Renovate. View the repository job log.

[claude]

Pull Request Review: Svelte v5.41.3 → v5.43.0

Overview

This is an automated Renovate PR updating Svelte from 5.41.3 to 5.43.0. The update includes one minor version bump (5.42.0 → 5.43.0) and several patch releases with bug fixes and a new experimental feature.

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Code Quality & Best Practices ✅

Positive aspects:

• This is a standard dependency update following semantic versioning
• The version constraint in package.json (^5.38.1) allows this update
• Lock files (package-lock.json and yarn.lock) are properly updated
• Changes are isolated to dependency management files only

Observations:

• Both package-lock.json and yarn.lock are present in the repository, which suggests mixed package manager usage. Consider standardizing on either npm or yarn to avoid potential inconsistencies.

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Potential Bugs or Issues ⚠️

Changes to review:

1. Out-of-order rendering (v5.43.0) - New minor feature

   • This is a new rendering optimization feature
   • Should be transparent to existing code, but worth testing for any rendering behavior changes

2. Async rendering fixes (v5.42.x)

   • Multiple fixes related to <svelte:head> rendered asynchronously
   • Fixes for #await block handling
   • Fork API commit/discard timing fixes

   Risk Assessment: Low to Medium

   • If your codebase uses <svelte:head> or #await blocks, these fixes could potentially change behavior
   • The fixes address edge cases, so they should generally improve stability

3. Experimental fork API (v5.42.0)

   • New experimental API introduced
   • Since it's experimental, it shouldn't affect existing code unless explicitly used

Recommendation: Test the following if present in your codebase:

• Any components using <svelte:head>
• Any components with #await blocks
• Any components with transitions
• Any async component initialization

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Performance Considerations 🚀

Improvements:

• Out-of-order rendering optimization should improve rendering performance
• Better optimization of await expressions (v5.41.4)
• Tweaked memoizer logic (v5.42.2)

Impact: These changes should have neutral to positive performance impact.

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Security Concerns 🔒

Assessment: ✅ No security concerns identified

• This is a legitimate Renovate bot update
• Svelte is a peer dependency, so it doesn't directly introduce runtime security risks
• No security-related changes mentioned in the changelog
• Package integrity hashes are properly updated in lock files

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Test Coverage 📋

Current CI coverage:
Based on .github/workflows/ci.yml, the frontend job runs:

• bun install
• bun run lint
• bun run build

Gaps identified:

• ❌ No automated frontend unit/integration tests detected
• ❌ No Svelte component testing
• ❌ No svelte-check run in CI (though it's available in package.json)

Recommendations:

1. Add bun run check to CI to run TypeScript/Svelte type checking
2. Consider adding component tests with Vitest or Playwright
3. Manual testing recommended for:
   • Components with <svelte:head>
   • Components with #await blocks
   • Any components with transitions
   • Context API usage (setContext timing was fixed)

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Breaking Changes 🔴

None identified - These are patch and minor version updates within Svelte 5.x, which should be backwards compatible.

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Recommendations

✅ Safe to merge with the following caveats:

1. Before merging:

   • Verify CI passes (frontend build and lint)
   • Perform manual smoke testing of the frontend application
   • Pay special attention to any async components or components using <svelte:head>

2. After merging:

   • Monitor for any unexpected rendering issues
   • Watch for console errors related to Svelte

3. Long-term improvements:

   • Standardize on a single package manager (npm or yarn)
   • Add svelte-check to CI pipeline
   • Add automated frontend testing
   • Consider enabling Renovate automerge for patch updates with passing CI

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Changelog Summary

v5.43.0:

• ✨ New: Out-of-order rendering
• 🐛 Fix: Settle batch after DOM updates

v5.42.x:

• ✨ Experimental fork API
• 🐛 Multiple async rendering fixes
• 🐛 Context API timing fixes
• 🐛 Transition locality improvements

v5.41.4:

• 🐛 Await expression optimization
• 🐛 Snippet coordination fixes

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Overall Assessment: Low-risk dependency update with beneficial bug fixes and performance improvements. Recommended for merge after CI validation.

[claude]

Code Review: Svelte v5.41.3 → v5.43.0 Update

Overview

This Renovate PR updates Svelte from v5.41.3 to v5.43.0, a minor version bump that includes new features and bug fixes.

Analysis

✅ Code Quality & Best Practices

• Automated Dependency Management: Using Renovate for dependency updates is a best practice - ensures timely updates and reduces manual effort
• Proper Versioning: The update respects semantic versioning (minor version bump with backwards compatibility)
• Lock File Updates: Both package-lock.json and yarn.lock are properly updated, maintaining consistency across package managers

🔍 Changes Included (v5.41.4 → v5.43.0)

New Features:

• Out-of-order rendering (#17038) - Performance optimization for async rendering
• Experimental fork API (#17004) - Advanced state management feature

Bug Fixes:

• Async <svelte:head> rendering improvements (#17052)
• Better #await block handling (#17051, #17031)
• Transition locality fixes (#17018)
• Snippet coordination with await expressions (#17021)
• Various memoization and batch processing improvements

🐛 Potential Issues

• No Breaking Changes Identified: All changes are additive or bug fixes
• Experimental Features: The fork API is marked as experimental - not recommended for production use yet
• Dependency Version Drift: The project uses both npm (package-lock.json) and yarn (yarn.lock). Consider standardizing on one package manager to avoid potential inconsistencies

⚡ Performance Considerations

• Positive Impact: Out-of-order rendering feature should improve performance for async components
• Optimizations: Multiple memoization and batch processing improvements included
• Bundle Size: No significant bundle size impact expected from this update

🔒 Security Concerns

• No Known Vulnerabilities: No CVEs associated with this update
• Trusted Source: Update is from the official Svelte repository
• Automated Bot: Renovate bot is properly configured and authenticated

🧪 Test Coverage

• CI Pipeline: The frontend workflow includes:
  • Dependency installation via bun
  • Lint checks (bun run lint)
  • Build verification (bun run build)
• Recommendation: Ensure all CI checks pass before merging
• Manual Testing: Consider testing async components and #await blocks if used in the codebase, as several fixes relate to these features

📦 Other Dependency Updates

The PR also includes transitive dependency updates:

• @sveltejs/acorn-typescript: 1.0.5 → 1.0.6
• esrap: 2.1.0 → 2.1.1
• zimmerframe: 1.1.2 → 1.1.4
• Various registry URL updates (npmjs.org → yarnpkg.com)

These are all patch/minor updates with no known issues.

Recommendations

1. ✅ Merge After CI Passes: This update is safe to merge once CI checks are green
2. 🔍 Test Async Components: If your app uses #await blocks or async components, do a quick manual verification
3. 📝 Package Manager Standardization: Consider removing either package-lock.json or yarn.lock to use a single package manager
4. 🚀 Stay Updated: Continue using Renovate for automated updates

Verdict

APPROVED ✅ - This is a routine maintenance update with beneficial bug fixes and performance improvements. No security concerns or breaking changes identified.