AI SDK signs approvals, FilesV4 lifecycle expands

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Breaking changes land across @ai-sdk/minimax, harness helpers, and OpenAI file APIs; Turborepo hardens multi-language caching.

347 commits 371 PRs merged 95 releases 7 briefings covered

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What shipped: The AI SDK introduced workflow-safe signed tool approvals for WorkflowAgent and new bridge token and asset helpers for harness adapters . @ai-sdk/minimax reached 2.0.13 . FilesV4 now supports optional getFileMetadata/downloadFile/deleteFile with streaming uploads, and OpenAI implements them in the same release . Turborepo fixed multi-language cache and watch hashing and now shows native tasks and workspace diffs . Eve fixed session startup and added per-session token cost limits . vercel-py workflow hooks never return None and gain conflict inspection . Workflow prepares replay payloads earlier and overlaps compilation .

$ ls vercel/week/ # the briefings behind this review

Mon Aug 31 Turborepo fixes multi-language cache and watch hashing Tue Sep 1 WorkflowAgent gets signed approvals, Vercel's Python hooks become conflict-aware Wed Sep 2 FilesV4 gains full file lifecycle, eve fixes session startup Thu Sep 3 Mid-stream provider recovery lands in AI SDK, Gemini video goes agentic Fri Sep 4 Eve ships per-session token cost limits, Next.js tightens Server Action errors Sat Sep 5 httpx2 migration revived, workflow payloads encrypted in vercel-py Sun Sep 6 Uncapped chat history retention, dev overlay route overrides fixed

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