Draft changelog: Batch Compliance api.x.com migration

[mintlify]

Summary

Adds a Sep 17, 2026 changelog entry covering the Batch Compliance API migration from GCS-backed URLs to api.x.com signed URLs.

Changes

• New X API v2 entry noting upload_url / download_url now live on api.x.com with upload_expires_at / download_expires_at fields.
• Calls out the new requirement that byte-path requests carry the App's Authorization: Bearer header.
• Summarizes limits (1 GiB single PUT, one active job per type), status codes (403/409/413), the expanded action/reason contract (rehydrate/tweet_edited, scrub_geo/geo_scrubbed, deleted_at alias), and the cancel endpoint.
• Links to the introduction, quickstart, and integration guide.

Context

Reflects PR #410 (Rewrite batch-compliance docs for the api.x.com byte-path flow) merged to main — the only product-affecting change since the previous changelog entry.

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Project	Status	Preview	Updated
x-corp	🟢 Ready	View Preview	Sep 17, 2026, 11:29 PM

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