RepoJournal
Vercel @vercel
117 wires and counting

$ follow Vercel

Keep up with Vercel in about 3 minutes: what actually shipped — the commits, pull requests, releases, and security advisories that matter.

or

fair warning: these emails are deeply technical. diffs, version numbers, CVEs, benchmark deltas. if that's not your idea of a good read, this isn't your newsletter.

Folds into your digest — weekly by default, monthly if you prefer. Unsubscribe in one click.

$ status

wire 2026-09-09
stories 147
GitHub RSS Archive Topics

© 2026 RepoJournal Home Showcase Explore How it works Privacy

$ the-wire · showcase

Next.js fixes dev startup race as Turborepo layers telemetry and matcher speedups

By RepoJournal · Filed · About Vercel

Anthony Shew prha github-actions[bot] alangenfeld Tobias Koppers Spyros Ioakeimidis Hendrik Liebau
15 people shipped this
Anthony Shew @anthonyshew 3 cited prha @prha 3 cited github-actions[bot] @github-actions[bot] 2 cited alangenfeld @alangenfeld 2 cited Tobias Koppers @sokra 1 cited Spyros Ioakeimidis @spirosikmd 1 cited Hendrik Liebau @unstubbable icyJoseph @icyJoseph lubieowoce @lubieowoce vercel-gh-bot-4[bot] @vercel-gh-bot-4[bot] Benjamin Barrera @BABTUNA Jerilyn Zheng @jerilynzheng benpankow @benpankow VaguelySerious @VaguelySerious TooTallNate @TooTallNate

Next.js patches a dev-server startup race that could publish an empty Pages Router route set, while Turborepo's startup optimization stack lands several independent performance layers.

Next.js fixed a dev-server startup race that could temporarily publish an empty Pages Router route set when Watchpack's first filesystem aggregation arrived before the route-directory scan completed [1]. The dev bundler now snapshots the initial `pages/` and `app/` files before starting the watcher, and ignores Watchpack aggregations missing an existing snapshot page file [1]. Separately, a Turbopack CSS HMR bug that threw "Error: No link element found for chunk" when editing an unmounted `.module.css` has been fixed, so the edit previously "silently failed to apply" but now applies correctly [2].

Turborepo's startup-performance work, previously bundled together and reverted, now lands as independent layers on `main`: telemetry is skipped when disabled [3], numeric package manager versions get a fast-path [4], and compiled workspace matchers are reused between inference and local discovery [5]. These are individual optimizations, not a cumulative stack, and their benchmark figures are historical measurements [3][4][5].

Eve 0.52.3 adds explicit Datadog operation and resource names to framework-owned agent spans, plus input-aware activity labels for channel presentation [6]. A new self-modification feature connects production proposal primitives to the bundled agent, letting it edit files and publish draft pull requests through brokered GitHub requests, without leaving direct credentials in the sandbox [7][8][9]. Workflow 4.8.6 aborts active local queue deliveries when the World closes [10], and adds `Run#getWritable()` so one run can append to another run's stream without read capability [11]. A new WebSocket v1 client protocol contract, `workflow-stream-ws/v1`, is defined but not yet called [12].

Action items

References

  1. [1] Fix dev route discovery startup race (#97920) ↗ vercel/next.js
  2. [2] Fix: Turbopack CSS HMR error when editing an unmounted merged CSS chunk (#94551) ↗ vercel/next.js
  3. [3] perf: Skip work for disabled telemetry (#13972) ↗ vercel/turborepo
  4. [4] perf: Fast-path numeric package manager versions (#13973) ↗ vercel/turborepo
  5. [5] perf: Reuse compiled workspace matchers ↗ vercel/turborepo
  6. [6] eve@0.52.3 ↗ vercel/eve
  7. [7] feat(self-modification): activate production file editing ↗ vercel/eve
  8. [8] feat(self-modification): publish agent edits as draft pull requests ↗ vercel/eve
  9. [9] feat(self-modification): prepare production proposal workspaces ↗ vercel/eve
  10. [10] workflow@4.8.6 ↗ vercel/workflow
  11. [11] Add `Run#getWritable()` for appending to another run's stream ↗ vercel/workflow
  12. [12] feat(streams): add WebSocket v1 client protocol contract ↗ vercel/workflow

$ ls vercel/reviews/ # the step-back reads

the week in review AI SDK signs approvals, FilesV4 lifecycle expands the month in review Workflow 4.8 overhauls delivery and sessions, Eve compacts traces, Turbopack cache defaults on
Topics: JavaScript Full archive →

Quick answers

What shipped in Vercel on September 9, 2026?
Next.js patches a dev-server startup race that could publish an empty Pages Router route set, while Turborepo's startup optimization stack lands several independent performance layers. In total, 72 commits, 71 pull requests, and 4 releases landed.
Who contributed to Vercel on September 9, 2026?
15 developers shipped this update, including Tobias Koppers, Spyros Ioakeimidis, Hendrik Liebau, icyJoseph, lubieowoce, Anthony Shew, vercel-gh-bot-4[bot], and Benjamin Barrera, and 7 more.
What were the notable Vercel updates?
Fix dev route discovery startup race (#97920), Fix: Turbopack CSS HMR error when editing an unmounted merged CSS chunk (#94551), and perf: Skip work for disabled telemetry (#13972).
♥

$ log @vercel --recent

Eve fixes workflow builds, dynamic tool replay, and prompt cache; Next.js fixes turbo-tasks shutdown hang 56 shipped Turborepo fixes stale global-input hashing, adds experimental Go workspace graph 54 shipped Uncapped chat history retention, dev overlay route overrides fixed 17 shipped httpx2 migration revived, workflow payloads encrypted in vercel-py 91 shipped

$ log --all # elsewhere on the wire

@vuejs Compiler-SFC fix restores await scope in nested blocks @openclaw openclaw 2026.9.3 rehearses updates; discrawl guards publication compatibility

$ ls showcases/

Rails Django Laravel Node.js Go Vue.js Kubernetes HashiCorp Arch Linux Linux Anthropic OpenAI

$ init your-desk

RepoJournal can write one of these for any repo you care about. Sign in with GitHub, pick your repos and sources, and your desk gets a wire like this one every morning.