Who contributed to Vercel on June 29, 2026?

3 developers shipped this update, including mischnic, pranaygp, and VaguelySerious.

What were the notable Vercel updates?

eve@0.17.0, @vercel/fs-detectors@6.11.2, and Turbopack: make hash_xxh3_hash128 return u128.

@vercel

Next.js + the Vercel platform - frontend infrastructure for the web

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The Wire · Showcase

WORKFLOW FIXES SILENT STEP RE-EXECUTION, EVE LOCKS DOWN EXPERIMENTAL API

By RepoJournal · Filed 06:01 UTC on June 29, 2026 · About Vercel

3 people shipped this

pranaygp @pranaygp 2 cited

VaguelySerious @VaguelySerious 2 cited

mischnic @mischnic 1 cited

Vercel workflow shipped critical fixes preventing duplicate step execution on transient failures, while Eve removed its experimental Workflow opt-in from the public API to prevent confusion.

The workflow team landed four production hardening changes that address cascading failure modes in turbo and standard modes. The most critical: step completion POSTs that fail now retry in-process [6], preventing silent re-execution when the network hiccups but the user code already succeeded. A second fix gates fire-and-forget hook creation on the run-ready barrier [5], ensuring optimistic workflow execution doesn't leak uncommitted events. Transport failures during attacks now redrive instead of permanently failing runs [4], and all five HTTP paths through world-vercel now route through a unified core [7] with consistent observability and error handling. On the platform side, Eve 0.17.0 removed the `ExperimentalWorkflow` opt-in marker from the public `eve/tools` export [1], moving workflow tooling entirely experimental after the public API made it look production-ready. Vercel CLI 54.18.2 and fs-detectors 6.11.2 shipped a fix allowing Services v2 entries with only a `root` field to fall back to static builds [2], unblocking simplified service configs. Next.js canary gained 128-bit hash support in Turbopack [3], aligning hash operations across the build system.

Action items

→ If you deploy workflows with fire-and-forget hooks or synchronous returns, upgrade to the latest workflow packages immediately vercel/workflow [immediate]
→ Remove any `ExperimentalWorkflow` imports from your Eve tools if you're on a pre-0.17 build vercel/eve [plan]
→ Upgrade Vercel CLI to 54.18.2 if deploying Services v2 with static-only roots vercel/vercel [plan]

References

[1] eve@0.17.0 ↗ vercel/eve
[2] @vercel/fs-detectors@6.11.2 ↗ vercel/vercel
[3] Turbopack: make hash_xxh3_hash128 return u128 ↗ vercel/next.js
[4] Redrive on transient workflow-server transport failures instead of failing the run ↗ vercel/workflow
[5] [core] Gate turbo end-of-run drain writes on the run-ready barrier ↗ vercel/workflow
[6] fix(world-vercel): retry idempotent event POSTs in-process to avoid step re-execution ↗ vercel/workflow
[7] [world-vercel] Unify HTTP request handling into a shared core ↗ vercel/workflow

Quick answers

What shipped in Vercel on June 29, 2026?: Vercel workflow shipped critical fixes preventing duplicate step execution on transient failures, while Eve removed its experimental Workflow opt-in from the public API to prevent confusion. In total, 8 commits, 10 pull requests, and 4 releases landed.
Who contributed to Vercel on June 29, 2026?: 3 developers shipped this update, including mischnic, pranaygp, and VaguelySerious.
What were the notable Vercel updates?: eve@0.17.0, @vercel/fs-detectors@6.11.2, and Turbopack: make hash_xxh3_hash128 return u128.

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