What shipped in Vercel on May 1, 2026?

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CHAT 4.27.0 SHIPS WITH ADAPTER OVERHAUL AND SLACK LINK PREVIEWS

By RepoJournal · Filed 14:14 UTC on May 1, 2026 · About Vercel

Vercel's chat platform released a major version bump across eight adapters with new API endpoints, custom configuration options, and fixed Slack unfurl metadata handling — the biggest chat update in weeks.

The @chat-adapter ecosystem hit 4.27.0 [1] with a coordinated release across Discord, Slack, and six other adapters, adding `apiUrl` config support for custom endpoints (a feature teams have been requesting for GovSlack and GitHub Enterprise deployments) [3]. The Slack adapter now enriches link previews with full OG metadata from attachments [4], fixing a gap where unfurl data was silently dropped. Documentation landed simultaneously [2], covering streaming APIs, error codes, and the new ExternalSelect component — this matters because every adapter README now has the config guidance teams need. On the infrastructure side, the Terraform provider merged four critical fixes: firewall rules now update instead of recreate [7], Edge Config token handling is future-proofed before API field deprecation [6], and project import state conversion is bulletproof [8]. Next.js added non-standard robot directives support [9], letting you emit SeznamBot and Yandex-specific crawl rules. The AI SDK did cleanup work [10] [11], removed a broken experimental provider hook, and hardened Amazon Bedrock's cross-provider reasoning handling [12]. Nft's concurrency semaphore was leaking badly [5] — file IO was releasing the queue slot before operations finished, defeating the 1024-concurrent-read limit entirely.

Action items

→ Upgrade @chat-adapter packages to 4.27.0 if you use custom API endpoints or need Slack link previews vercel/chat [plan]
→ Merge Terraform provider fixes (#483, #466, #489) into your state before next infrastructure deploy vercel/terraform-provider-vercel [plan]
→ Update vercel/nft to fix runaway file concurrency if you're hitting IO saturation vercel/nft [monitor]

References

[1] @chat-adapter/shared 4.27.0
[2] Chat 4.27.0 documentation update
[3] @chat-adapter/discord 4.27.0 apiUrl config
[4] Slack link preview unfurl enrichment
[5] NFT concurrency semaphore fix
[6] Edge Config token deprecation handling
[7] Terraform firewall rules update fix
[8] Terraform project read state conversion
[9] Next.js robots.ts non-standard directives
[10] AI SDK experimental_customProvider removal
[11] AI SDK ExtractLiteralUnion export removal
[12] Bedrock cross-provider reasoning fix

Quick answers

What shipped in Vercel on May 1, 2026?: Vercel's chat platform released a major version bump across eight adapters with new API endpoints, custom configuration options, and fixed Slack unfurl metadata handling — the biggest chat update in weeks. In total, 39 commits, 44 pull requests, and 14 releases landed.

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.

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@vercel 1 day ago

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.

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@vercel 2 days ago

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

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@vercel 3 days ago

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.

+12

javascript 145 shipped 2-min read

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