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The Wire · Showcase

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

By RepoJournal · Filed · About Vercel

Lars Grammel github-actions[bot] Hendrik Liebau dnwpark Felix Arntz remiconnesson vercel-gh-bot-2
13 people shipped this
Lars Grammel @lgrammel 4 cited github-actions[bot] @github-actions[bot] 2 cited Hendrik Liebau @unstubbable 2 cited dnwpark @dnwpark 2 cited Felix Arntz @felixarntz 1 cited remiconnesson @remiconnesson 1 cited vercel-gh-bot-2 @vercel-gh-bot-2 1 cited OwenKephart @OwenKephart 1 cited AndrewBarba @AndrewBarba 1 cited ruiconti @ruiconti 1 cited gaearon @gaearon 1 cited github-actions @github-actions Melkeydev @Melkeydev

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.

Workflow 5.0.0-beta.36 landed with `experimental_minRetention` for Hook tokens [1], letting operators keep tokens unavailable after run completion and requiring Worlds to advertise hookRetention capability. The stable 4.6.1 release followed immediately with port discovery caching for self-hosted steps [2], a focused hardening that cuts discovery overhead per process. On the AI SDK front, Lars Grammel shipped fixes for Gemini 3 parallel function calls that were triggering false validator warnings [3], invalid Bedrock tool names that crashed conversation replay [4], and a harness bug where the dynamic flag was being dropped during validation of provider-executed tools [5]. A separate win adds per-step first-content timeout configuration [6], letting streamText arm dedicated timeouts for every model-call response stream. Bedrock also gained native S3 image URL support, eliminating forced in-memory loading [7]. Eve shipped six fixes including cancellation of durable turns from generated Web Chat [8], preserved coalesced delivery inputs [9], native Linear elicitations [10], a generic Slack event handler [11], and token-budget prompt decline handling [12]. Next.js hardened dev cache invalidation for cookieless requests and route handlers [14], added HMR coverage for static params changes [13], and Turbopack cut peak memory from 3 GB to 2.6 GB by stopping sourcesContent duplication in serialized source maps [15]. Vercel CLI added FastAPI static file collection for CDN serving [17] and container manifest emission [16].

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Action items

References

  1. [1] [email protected] ↗ vercel/workflow
  2. [2] [email protected] ↗ vercel/workflow
  3. [3] fix: prevent warnings and skip-validator injection for valid Gemini 3 parallel function calls (#17649) vercel/ai
  4. [4] fix: prevent invalid hallucinated tool names from crashing Bedrock conversation replay (#17769) vercel/ai
  5. [5] fix(harness): avoid incorrectly marked invalid tool calls due to `dynamic` flag being dropped (#17807) vercel/ai
  6. [6] feat: add a per-step first-content timeout for streaming generations ↗ vercel/ai
  7. [7] fix: Amazon Bedrock S3 image URLs are rejected instead of passed through to inference ↗ vercel/ai
  8. [8] fix(eve): cancel durable turns from generated Web Chat ↗ vercel/eve
  9. [9] fix(eve): preserve coalesced delivery inputs ↗ vercel/eve
  10. [10] fix(eve): use native elicitations for the Linear channel ↗ vercel/eve
  11. [11] feat(eve): slack - add generic event handler ↗ vercel/eve
  12. [12] fix(eve): cancel the turn tree when a session token-budget prompt is declined ↗ vercel/eve
  13. [13] Add a dedicated HMR message for static params changes (#96020) vercel/next.js
  14. [14] Fix stale dev `'use cache'` for cookieless requests and route handlers ↗ vercel/next.js
  15. [15] Turbopack: stop copying sourcesContent into every serialized source map (#95934) vercel/next.js
  16. [16] [services] Add package manifest to container builder. ↗ vercel/vercel
  17. [17] [python] Collect fastapi static files to serve via CDN. ↗ vercel/vercel

Quick answers

What shipped in Vercel on July 23, 2026?
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. In total, 58 commits, 59 pull requests, and 15 releases landed.
Who contributed to Vercel on July 23, 2026?
13 developers shipped this update, including github-actions[bot], github-actions, Lars Grammel, Felix Arntz, remiconnesson, vercel-gh-bot-2, OwenKephart, and AndrewBarba, and 5 more.
What were the notable Vercel updates?
[email protected], [email protected], and fix: prevent warnings and skip-validator injection for valid Gemini 3 parallel function calls (#17649).

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PASSPORT IDENTITY VERIFICATION LANDS, EVE HANDLES SCHEMA CHAOS, WORKFLOW CACHES PORT LOOKUPS

Passport ships identity token verification [ref:1], Eve stops failing turns on unsupported JSON Schemas [ref:6], and Workflow cuts port discovery overhead by 83% [ref:10].

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