RepoJournal
Vercel

@vercel

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

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

One email a day. Unsubscribe in one click.

Pick a date

  1. Thu 18 jun
  2. Fri 19 jun
  3. Sat 27 jun
  4. Sun 28 jun
  5. Mon 29 jun
  6. Tue 30 jun
  7. Wed 1 jul
  8. Thu 2 jul
  9. Fri 3 jul
  10. Sat 4 jul
  11. Sun 5 jul
  12. Mon 6 jul
  13. Tue 7 jul
  14. Wed 8 jul
  15. Thu 9 jul
  16. Fri 10 jul
  17. Sat 11 jul
  18. Mon 13 jul
  19. Tue 14 jul
  20. Wed 15 jul
  21. Thu 16 jul
  22. Fri 17 jul
  23. Sat 18 jul
  24. Sun 19 jul
  25. Mon 20 jul
  26. Tue 21 jul
  27. Wed 22 jul
  28. Thu 23 jul
  29. Fri 24 jul
  30. Today 25 jul
Topics: JavaScript Full archive →

The Wire · Showcase

NEXT.JS NUKES 327 INTEGRATION TESTS, CHAT SDK GAINS REAL SLACK EMULATOR, AI SDK BREAKS INSTRUCTION HANDLING

By RepoJournal · Filed · About Vercel

dancer lgrammel timneutkens felixarntz PierreVanobbergen
5 people shipped this
dancer @dancer 2 cited lgrammel @lgrammel 2 cited timneutkens @timneutkens 1 cited felixarntz @felixarntz 1 cited PierreVanobbergen @PierreVanobbergen 1 cited

Next.js just migrated its entire legacy integration test suite to isolated tests and deleted 327 suites in one swing—the biggest test infrastructure shift in months—while chat and AI SDKs ship breaking changes that tighten their APIs.

The Next.js team completed a massive testing overhaul [1] [2], converting every test under `test/integration/` to run through `nextTestSetup` across `test/e2e/`, `test/production/`, `test/development/`, and `test/unit/`, then deleted the entire legacy folder. This isn't busywork—it's the foundation for faster CI and clearer test ownership. Separately, Next.js shipped `bfcacheId` [3] to let you opt out of state preservation when `cacheComponents` is enabled, giving control back to developers who need to reset UI state on navigation rather than preserve it. The chat SDK now handles Discord interactions properly in gateway-only mode [4], mapping slash commands and button interactions through the correct handler paths, and Telegram support for typed attachment uploads [5] rounds out multi-platform parity with `sendPhoto`, `sendAudio`, `sendVideo` methods. The AI SDK made instructions a core part of `prepareStep` [6] [7]—this breaks existing code because instructions now propagate across all future steps and properties like `content`, `files`, and `sources` accumulate rather than reset. Google Interactions API agents now support AbortSignal cancellation [8] so you're not left billing while a run spins. On the infrastructure side, NCC fixed extension resolution [9] to prioritize TypeScript over JSON files when both exist in the same directory—a quiet footgun that broke builds silently. Vercel CLI now injects `VERCEL_PROJECT_ID` and `VERCEL_ORG_ID` into `vercel dev` [10], matching production behavior so SDKs and telemetry work locally; there's also a fix for double-appended `rootDirectory` paths in per-directory-linked monorepos [11].

One email a day. Unsubscribe in one click.

Action items

References

  1. [1] Convert test/integration to isolated tests (#93247) vercel/next.js
  2. [2] Convert test/integration to isolated tests ↗ vercel/next.js
  3. [3] bfcacheId: Opt out of state preservation (#93633) vercel/next.js
  4. [4] fix(discord): handle interactions in gateway-only mode ↗ vercel/chat
  5. [5] feat(telegram): support typed attachment uploads ↗ vercel/chat
  6. [6] feat: instructions as prepareStep input ↗ vercel/ai
  7. [7] fix(ai): accumulative properties on StreamTextResult, GenerateTextResult ↗ vercel/ai
  8. [8] feat(provider/google): support cancelling long-running Interactions API agents via AbortSignal, and process their intermittent stream ↗ vercel/ai
  9. [9] fix: Reorder extension resolution to prioritise TypeScript over JSON ↗ vercel/ncc
  10. [10] [cli] expose VERCEL_PROJECT_ID and VERCEL_ORG_ID to `vercel dev` process (#16282) vercel/vercel
  11. [11] [cli] fix `vercel dev` double-appending rootDirectory (#16279) vercel/vercel

Quick answers

What shipped in Vercel on May 12, 2026?
Next.js just migrated its entire legacy integration test suite to isolated tests and deleted 327 suites in one swing—the biggest test infrastructure shift in months—while chat and AI SDKs ship breaking changes that tighten their APIs. In total, 41 commits, 46 pull requests, and 20 releases landed.
Who contributed to Vercel on May 12, 2026?
5 developers shipped this update, including timneutkens, dancer, lgrammel, felixarntz, and PierreVanobbergen.
What were the notable Vercel updates?
Convert test/integration to isolated tests (#93247), Convert test/integration to isolated tests, and bfcacheId: Opt out of state preservation (#93633).

More from @vercel

Vercel @vercel

NEXT.JS OPTIMIZES APP ROUTING ENTRY POINTS WHILE WORKFLOW CUTS STREAM LATENCY 20 PERCENT

Next.js extracted invariant app-page handlers into shared runtime modules while Workflow's stream write batching moves into core, eliminating per-token round trips on idle producers.

timneutkens gnoff devjiwonchoi aurorascharff +11
javascript 126 shipped 2-min read
Vercel @vercel

TWO CRITICAL SECURITY PATCHES LAND IN WORKFLOW AND EVE OVERNIGHT

Next 16.2.11 and PostCSS 8.5.12 patches ship across workflow to seal CVE vulnerabilities, while Eve locks down workflow failure visibility.

Nathan Rajlich joeyhotz VaguelySerious Sam Poder +9
javascript 153 shipped 1-min read
Vercel @vercel

WORKFLOW 5.0 BETA ARRIVES WITH HOOK TOKEN RETENTION, AI SDK FIXES GEMINI AND BEDROCK HALLUCINATIONS

Workflow shipped its most ambitious beta yet with experimental token retention, while the AI SDK shipped five critical fixes across Gemini, Bedrock, and dynamic tool validation in a single push.

github-actions[bot] github-actions Lars Grammel Felix Arntz +9
javascript 132 shipped 2-min read
Vercel @vercel

NEXT.JS PATCHES FIVE SECURITY HOLES OVERNIGHT WHILE VERCEL CLI GAINS AI GATEWAY BUDGET CONTROLS

Five security advisories dropped across Next.js in the last 24 hours, ranging from origin validation on internal redirects to fetch cache key collisions that could leak cached responses between requests.

github-actions[bot] jeremyphilemon Melkeydev healeycodes +12
javascript 145 shipped 2-min read

Daily updates, in your inbox

Follow Vercel

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

or

One email a day. Unsubscribe in one click. Read a past issue →

Elsewhere on the wire

AI Agents AI Agents

CLAUDE OPUS 5 LANDS ACROSS THE STACK

The newest Anthropic model is now live in langchain, Cline, and llama-index, with native support for extended reasoning and 1M context windows.

github-actions[bot] hntrl dependabot ak684 +6
ai-agents 28 shipped 1-min read
Local LLMs Local LLMs

OLLAMA LANDS LAGUNA SUPPORT AND CRUSHES MEMORY LEAKS WHILE SGLANG HITS V0.5.16 WITH CONFIDENCE-DRIVEN SPECULATIVE DECODING

Ollama shipped three critical performance and reliability fixes for Metal residency and concurrent access patterns, while SGL-Lang released 0.5.16 with a new speculative algorithm hitting 383.7 tok/s on DeepSeek-V4.

dhiltgen ParthSareen Xuan-Son Nguyen Johannes Gäßler +11
llms 210 shipped 2-min read
CachyOS @CachyOS

HYPRLAND V0.56 FIXES LAND, PACKAGE ECOSYSTEM ROLLS FORWARD

Hyprland configuration updated for v0.56 compatibility across multiple desks, while the AUR-derived ecosystem locked in four automated package bumps.

cantosun99 Jinra Aarrayy Valeri +7
infra 85 shipped 1-min read
Elixir & Phoenix Elixir & Phoenix

LIVEVIEW ASYNC CLEANUP FIX SHIPS ALONGSIDE RANGE OPTIMIZATIONS

Phoenix LiveView closes a critical async task test failure while Elixir cuts unnecessary abs calls from Range operations.

Barna Kovacs Alexander Gubarev SteffenDE José Valim +1
elixir 19 shipped 1-min read
Want every project, not just this one?