Task: Bump CodSpeed Plugin to Major Version 5.x

Overview

Update @codspeed/benchmark.js-plugin from version 4.0.0 to 5.0.1 across all packages that use it. This is a prerequisite if staying with benchmark.js, or can be skipped if migrating directly to tinybench (see task 001).

Current State

The following packages use @codspeed/benchmark.js-plugin at version 4.0.0:

Target Version

• Current: @codspeed/[email protected]
• Target: @codspeed/[email protected]

Breaking Changes in v5.x

Based on the CodSpeed changelog, the major version bump includes:

1. Node.js version requirements - May require Node.js 18+ (verify against prisma's ^20.19 || ^22.12 || >=24.0 requirement)
2. API compatibility - The withCodSpeed wrapper API remains the same
3. Internal instrumentation changes - Should be transparent to users

Migration Steps

Step 1: Update Dependencies

For each package, update the version in package.json:

{
  "devDependencies": {
    "@codspeed/benchmark.js-plugin": "5.0.1"
  }
}

Packages to update:

• packages/client/package.json
• packages/client-engine-runtime/package.json
• packages/get-platform/package.json

Step 2: Regenerate Lockfile

pnpm install

This will update pnpm-lock.yaml with the new versions.

Step 3: Verify Locally

# Run all benchmarks
pnpm bench

# Test CodSpeed integration locally
CODSPEED_BENCHMARK=true pnpm bench

Step 4: Verify CI

• Push changes to a PR
• Verify the benchmark workflow in .github/workflows/benchmark.yml passes
• Check CodSpeed dashboard for results

Verification Checklist

• packages/client/package.json updated to 5.0.1
• packages/client-engine-runtime/package.json updated to 5.0.1
• packages/get-platform/package.json updated to 5.0.1
• pnpm-lock.yaml regenerated
• pnpm bench runs successfully locally
• CI benchmark workflow passes
• CodSpeed dashboard shows results from new version

Relationship to Other Tasks

• If migrating to tinybench (task 001): This task can be skipped entirely, as tinybench uses @codspeed/[email protected] instead
• If staying with benchmark.js: Complete this task first before any other benchmark work

Rollback Plan

If issues arise, revert the version changes:

git checkout -- packages/client/package.json packages/client-engine-runtime/package.json packages/get-platform/package.json
pnpm install

Notes

• The CodSpeed GitHub Action (CodSpeedHQ/action@v3) in .github/workflows/benchmark.yml is compatible with plugin v5.x
• No code changes should be required—only dependency version updates
• The rhysd/github-action-benchmark@v1 action for storing results is unaffected by this change