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This PR was opened by the Changesets release GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated.

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main is currently in pre mode so this branch has prereleases rather than normal releases. If you want to exit prereleases, run changeset pre exit on main.

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  • #505 b56aae3 Thanks @copilot-swe-agent! - Override setTimeout, setInterval, and related functions in workflow VM context to throw helpful errors suggesting to use sleep instead

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vercel bot commented Dec 13, 2025

The latest updates on your projects. Learn more about Vercel for GitHub.

Project Deployment Review Updated (UTC)
example-nextjs-workflow-turbopack Ready Ready Preview, Comment Dec 13, 2025 9:49am
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github-actions bot commented Dec 13, 2025

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 0.029s (-31.1% 🟢) 1.007s (~) 0.978s 10 1.00x
🌐 Starter Next.js (Turbopack) 0.039s (+4.3%) 1.014s (~) 0.975s 10 1.33x
💻 Local Next.js (Turbopack) 0.040s (+2.0%) 1.015s (~) 0.974s 10 1.37x
🌐 Redis Next.js (Turbopack) 0.041s (+4.8%) 1.018s (~) 0.976s 10 1.41x
💻 Local Express 0.044s (-7.6% 🟢) 1.007s (~) 0.963s 10 1.49x
🌐 MongoDB Next.js (Turbopack) 0.060s (-2.4%) 1.015s (~) 0.955s 10 2.05x
🌐 Turso Next.js (Turbopack) 0.095s (-7.0% 🟢) 1.013s (~) 0.919s 10 3.23x
🐘 Postgres Next.js (Turbopack) 0.122s (-67.4% 🟢) 1.020s (~) 0.898s 10 4.18x
🐘 Postgres Nitro 0.304s (-8.7% 🟢) 1.013s (-2.0%) 0.709s 10 10.37x
🐘 Postgres Express 0.389s (+0.6%) 1.013s (~) 0.623s 10 13.28x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Next.js (Turbopack) 0.506s (-24.9% 🟢) 1.406s (-16.1% 🟢) 0.900s 10 1.00x
▲ Vercel Express 0.524s (-15.8% 🟢) 1.460s (-14.0% 🟢) 0.936s 10 1.03x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Next.js (Turbopack) | Express

workflow with 1 step

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 1.075s (-3.1%) 2.007s (~) 0.932s 10 1.00x
🌐 Starter Next.js (Turbopack) 1.094s (~) 2.010s (~) 0.915s 10 1.02x
💻 Local Next.js (Turbopack) 1.095s (~) 2.012s (~) 0.918s 10 1.02x
🌐 Redis Next.js (Turbopack) 1.105s (~) 2.013s (~) 0.908s 10 1.03x
💻 Local Express 1.113s (~) 2.007s (~) 0.894s 10 1.04x
🌐 Turso Next.js (Turbopack) 1.300s (-1.2%) 2.010s (~) 0.710s 10 1.21x
🌐 MongoDB Next.js (Turbopack) 1.312s (~) 2.013s (~) 0.702s 10 1.22x
🐘 Postgres Next.js (Turbopack) 1.925s (+11.1% 🔺) 2.015s (~) 0.089s 10 1.79x
🐘 Postgres Nitro 2.137s (-12.3% 🟢) 3.017s (~) 0.880s 10 1.99x
🐘 Postgres Express 2.258s (+1.0%) 3.014s (~) 0.756s 10 2.10x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Next.js (Turbopack) 2.507s (-2.9%) 3.496s (+1.8%) 0.989s 10 1.00x
▲ Vercel Express 2.554s (-3.4%) 3.532s (-3.1%) 0.978s 10 1.02x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Next.js (Turbopack) | Express

workflow with 10 sequential steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 10.520s (-2.5%) 11.012s (~) 0.492s 5 1.00x
🌐 Starter Next.js (Turbopack) 10.583s (~) 11.011s (~) 0.428s 5 1.01x
💻 Local Next.js (Turbopack) 10.678s (~) 11.019s (~) 0.340s 5 1.01x
🌐 Redis Next.js (Turbopack) 10.720s (+0.6%) 11.018s (~) 0.298s 5 1.02x
💻 Local Express 10.785s (~) 11.013s (~) 0.228s 5 1.03x
🌐 Turso Next.js (Turbopack) 12.181s (~) 13.020s (~) 0.839s 5 1.16x
🌐 MongoDB Next.js (Turbopack) 12.227s (-0.5%) 13.025s (~) 0.798s 5 1.16x
🐘 Postgres Next.js (Turbopack) 15.236s (+3.3%) 16.037s (+5.3% 🔺) 0.800s 5 1.45x
🐘 Postgres Express 20.213s (~) 21.042s (~) 0.829s 5 1.92x
🐘 Postgres Nitro 20.497s (+13.3% 🔺) 21.032s (+12.9% 🔺) 0.535s 5 1.95x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Next.js (Turbopack) 20.674s (-2.5%) 21.538s (-1.3%) 0.864s 5 1.00x
▲ Vercel Express 20.947s (+1.3%) 21.706s (+1.6%) 0.759s 5 1.01x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Next.js (Turbopack) | Express

workflow with 10 parallel steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 1.332s (-3.8%) 2.006s (~) 0.674s 5 1.00x
🌐 Starter Next.js (Turbopack) 1.344s (-0.7%) 2.008s (~) 0.664s 5 1.01x
💻 Local Next.js (Turbopack) 1.366s (+1.0%) 2.011s (~) 0.645s 5 1.03x
🌐 Redis Next.js (Turbopack) 1.375s (+3.3%) 2.011s (~) 0.636s 5 1.03x
💻 Local Express 1.387s (~) 2.007s (~) 0.620s 5 1.04x
🐘 Postgres Next.js (Turbopack) 1.679s (-14.0% 🟢) 2.218s (-8.3% 🟢) 0.539s 5 1.26x
🌐 MongoDB Next.js (Turbopack) 2.138s (-0.7%) 3.015s (~) 0.877s 5 1.60x
🌐 Turso Next.js (Turbopack) 2.203s (-0.7%) 3.011s (-0.6%) 0.809s 5 1.65x
🐘 Postgres Nitro 2.590s (+38.2% 🔺) 3.015s (+36.5% 🔺) 0.425s 5 1.94x
🐘 Postgres Express 2.710s (+1.7%) 3.016s (~) 0.306s 5 2.03x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Next.js (Turbopack) 3.637s (-7.0% 🟢) 4.560s (-2.4%) 0.923s 5 1.00x
▲ Vercel Express 4.627s (+15.5% 🔺) 5.509s (+9.5% 🔺) 0.882s 5 1.27x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Next.js (Turbopack) | Express

stress test: Promise.all with 100 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🌐 Starter 🥇 Next.js (Turbopack) 6.359s (-2.1%) 6.710s (-3.2%) 0.351s 5 1.00x
🌐 Redis Next.js (Turbopack) 8.200s (+4.1%) 8.531s (+4.0%) 0.331s 4 1.29x
🐘 Postgres Next.js (Turbopack) 8.633s (+0.6%) 8.915s (~) 0.282s 4 1.36x
🐘 Postgres Express 9.130s (+2.7%) 9.299s (-2.1%) 0.169s 4 1.44x
🐘 Postgres Nitro 9.149s (+1.7%) 9.599s (+1.8%) 0.450s 4 1.44x
💻 Local Nitro 11.800s (-10.5% 🟢) 11.967s (-9.7% 🟢) 0.167s 3 1.86x
💻 Local Express 13.633s (+1.4%) 13.702s (+0.7%) 0.069s 3 2.14x
💻 Local Next.js (Turbopack) 14.547s (+3.8%) 14.664s (+2.0%) 0.116s 3 2.29x
🌐 Turso Next.js (Turbopack) 19.834s (~) 20.529s (~) 0.695s 2 3.12x
🌐 MongoDB Next.js (Turbopack) 20.134s (+1.1%) 20.528s (~) 0.393s 2 3.17x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 14.659s (-27.7% 🟢) 15.361s (-26.3% 🟢) 0.702s 2 1.00x
▲ Vercel Next.js (Turbopack) 14.860s (-22.0% 🟢) 15.618s (-19.9% 🟢) 0.758s 2 1.01x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express | Next.js (Turbopack)

stress test: Promise.race with 100 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🌐 Starter 🥇 Next.js (Turbopack) 6.699s (+0.6%) 6.938s (~) 0.239s 5 1.00x
🌐 Redis Next.js (Turbopack) 8.961s (+10.4% 🔺) 9.175s (+8.7% 🔺) 0.214s 4 1.34x
🐘 Postgres Next.js (Turbopack) 9.198s (+4.0%) 9.428s (+0.7%) 0.230s 4 1.37x
🐘 Postgres Express 9.655s (~) 9.872s (~) 0.216s 4 1.44x
🐘 Postgres Nitro 10.000s (+1.4%) 10.081s (~) 0.081s 3 1.49x
💻 Local Nitro 11.905s (-14.5% 🟢) 12.060s (-14.0% 🟢) 0.155s 3 1.78x
💻 Local Express 14.274s (+2.3%) 14.422s (+1.2%) 0.148s 3 2.13x
💻 Local Next.js (Turbopack) 16.343s (-1.1%) 16.738s (-0.5%) 0.394s 2 2.44x
🌐 Turso Next.js (Turbopack) 19.955s (-0.6%) 20.535s (~) 0.580s 2 2.98x
🌐 MongoDB Next.js (Turbopack) 20.227s (~) 20.529s (~) 0.303s 2 3.02x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Next.js (Turbopack) 15.604s (-11.4% 🟢) 16.636s (-8.9% 🟢) 1.031s 2 1.00x
▲ Vercel Express 17.354s (-11.9% 🟢) 18.394s (-11.2% 🟢) 1.041s 2 1.11x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Next.js (Turbopack) | Express

Stream Benchmarks (includes TTFB metrics)
workflow with stream

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 0.110s (-36.3% 🟢) 0.999s (+0.7%) 0.011s (-16.7% 🟢) 1.017s (~) 0.907s 10 1.00x
🌐 Starter Next.js (Turbopack) 0.127s (+0.6%) 1.005s (~) 0.000s (NaN%) 1.010s (~) 0.883s 10 1.16x
💻 Local Next.js (Turbopack) 0.144s (+3.7%) 1.003s (~) 0.016s (+3.3%) 1.027s (~) 0.883s 10 1.31x
🌐 Redis Next.js (Turbopack) 0.148s (+7.9% 🔺) 1.004s (~) 0.000s (-100.0% 🟢) 1.015s (~) 0.867s 10 1.35x
💻 Local Express 0.178s (+2.8%) 0.992s (~) 0.018s (+24.3% 🔺) 1.025s (~) 0.847s 10 1.61x
🌐 MongoDB Next.js (Turbopack) 0.470s (-8.2% 🟢) 0.982s (+4.6%) 0.000s (+Infinity% 🔺) 1.012s (~) 0.542s 10 4.27x
🌐 Turso Next.js (Turbopack) 0.530s (+11.3% 🔺) 0.919s (-6.6% 🟢) 0.000s (+Infinity% 🔺) 1.011s (~) 0.480s 10 4.82x
🐘 Postgres Next.js (Turbopack) 1.315s (+39.7% 🔺) 1.628s (+99.9% 🔺) 0.000s (-100.0% 🟢) 1.817s (+62.9% 🔺) 0.502s 10 11.95x
🐘 Postgres Nitro 2.234s (+119.5% 🔺) 2.810s (+60.8% 🔺) 0.000s (-100.0% 🟢) 3.016s (+66.4% 🔺) 0.782s 10 20.31x
🐘 Postgres Express 2.359s (+1.9%) 2.686s (-1.7%) 0.000s (-100.0% 🟢) 3.014s (~) 0.656s 10 21.44x

▲ Production (Vercel)

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 2.749s (+12.7% 🔺) 3.265s (+11.7% 🔺) 0.467s (+42.8% 🔺) 4.147s (+13.7% 🔺) 1.398s 10 1.00x
▲ Vercel Next.js (Turbopack) 3.141s (+24.6% 🔺) 3.651s (+18.2% 🔺) 0.546s (+64.1% 🔺) 4.593s (+20.3% 🔺) 1.452s 10 1.14x
▲ Vercel Nitro ⚠️ missing - - - - -

🔍 Observability: Express | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World 🥇 Fastest Framework Wins
💻 Local Nitro 7/7
🐘 Postgres Next.js (Turbopack) 7/7
▲ Vercel Next.js (Turbopack) 5/7
Fastest World by Framework

Winner determined by most benchmark wins

Framework 🥇 Fastest World Wins
Express 💻 Local 5/7
Next.js (Turbopack) 🌐 Starter 7/7
Nitro 💻 Local 5/7
Column Definitions
  • Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
  • TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
  • Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
  • Wall Time: Total testbench time (trigger workflow + poll for result)
  • Overhead: Testbench overhead (Wall Time - Workflow Time)
  • Samples: Number of benchmark iterations run
  • vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

  • 💻 Local: In-memory filesystem world (local development)
  • 🐘 Postgres: PostgreSQL database world (local development)
  • ▲ Vercel: Vercel production/preview deployment
  • 🌐 Starter: Community world (local development)
  • 🌐 Turso: Community world (local development)
  • 🌐 MongoDB: Community world (local development)
  • 🌐 Redis: Community world (local development)
  • 🌐 Jazz: Community world (local development)

📋 View full workflow run


Some benchmark jobs failed:

  • Local: success
  • Postgres: success
  • Vercel: failure

Check the workflow run for details.

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github-actions bot commented Dec 13, 2025

🧪 E2E Test Results

Some tests failed

Summary

Passed Failed Skipped Total
✅ ▲ Vercel Production 225 0 9 234
✅ 💻 Local Development 252 0 8 260
✅ 📦 Local Production 252 0 8 260
✅ 🐘 Local Postgres 252 0 8 260
✅ 🪟 Windows 26 0 0 26
❌ 🌍 Community Worlds 105 11 0 116
Total 1112 11 33 1156

❌ Failed Tests

🌍 Community Worlds (11 failed)

mongodb (1 failed):

  • webhookWorkflow

redis (1 failed):

  • webhookWorkflow

starter (8 failed):

  • addTenWorkflow
  • addTenWorkflow
  • retryAttemptCounterWorkflow
  • crossFileErrorWorkflow - stack traces work across imported modules
  • hookCleanupTestWorkflow - hook token reuse after workflow completion
  • stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
  • stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
  • spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step

turso (1 failed):

  • webhookWorkflow

Details by Category

✅ ▲ Vercel Production
App Passed Failed Skipped
✅ astro 25 0 1
✅ express 25 0 1
✅ fastify 25 0 1
✅ hono 25 0 1
✅ nextjs-turbopack 25 0 1
✅ nextjs-webpack 25 0 1
✅ nuxt 25 0 1
✅ sveltekit 25 0 1
✅ vite 25 0 1
✅ 💻 Local Development
App Passed Failed Skipped
✅ astro-stable 25 0 1
✅ express-stable 25 0 1
✅ fastify-stable 25 0 1
✅ hono-stable 25 0 1
✅ nextjs-turbopack-stable 26 0 0
✅ nextjs-webpack-stable 26 0 0
✅ nitro-stable 25 0 1
✅ nuxt-stable 25 0 1
✅ sveltekit-stable 25 0 1
✅ vite-stable 25 0 1
✅ 📦 Local Production
App Passed Failed Skipped
✅ astro-stable 25 0 1
✅ express-stable 25 0 1
✅ fastify-stable 25 0 1
✅ hono-stable 25 0 1
✅ nextjs-turbopack-stable 26 0 0
✅ nextjs-webpack-stable 26 0 0
✅ nitro-stable 25 0 1
✅ nuxt-stable 25 0 1
✅ sveltekit-stable 25 0 1
✅ vite-stable 25 0 1
✅ 🐘 Local Postgres
App Passed Failed Skipped
✅ astro-stable 25 0 1
✅ express-stable 25 0 1
✅ fastify-stable 25 0 1
✅ hono-stable 25 0 1
✅ nextjs-turbopack-stable 26 0 0
✅ nextjs-webpack-stable 26 0 0
✅ nitro-stable 25 0 1
✅ nuxt-stable 25 0 1
✅ sveltekit-stable 25 0 1
✅ vite-stable 25 0 1
✅ 🪟 Windows
App Passed Failed Skipped
✅ nextjs-turbopack 26 0 0
❌ 🌍 Community Worlds
App Passed Failed Skipped
✅ mongodb-dev 3 0 0
❌ mongodb 25 1 0
✅ redis-dev 3 0 0
❌ redis 25 1 0
✅ starter-dev 3 0 0
❌ starter 18 8 0
✅ turso-dev 3 0 0
❌ turso 25 1 0

📋 View full workflow run


Some E2E test jobs failed:

  • Vercel Prod: failure
  • Local Dev: success
  • Local Prod: success
  • Local Postgres: success
  • Windows: success

Check the workflow run for details.

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