Improve global upload performance with R2 Local Uploads

Cloudflare announces Local Uploads for R2 in open beta, enabling faster global upload performance by writing object data to a storage location near the client before asynchronously replicating it to the bucket's primary region.

• •Up to 75% reduction in Time to Last Byte (TTLB) for cross-region uploads, dropping from ~2s to ~500ms in synthetic benchmarks
• •Object data is immediately accessible after the initial local write completes, with no waiting period for background replication
• •Not available for jurisdiction-restricted buckets (e.g., EU, FedRAMP)
• •Replication tasks use Cloudflare Queues with at-least-once delivery guarantees, retries, and dead letter queues
• •A pull-model polling service batches and dispatches replication jobs to Gateway Workers, which read from source, write to destination, and update Durable Object metadata