Announcing Cloudflare K2: serverless event streams

Summary

Cloudflare announced K2, a serverless event streaming service built on R2 object storage, on 2026-10-01. It targets high-scale data movement and long-term retention without traditional broker operations.

Key facts

• Cloudflare K2 was announced on 2026-10-01.
• K2 is a serverless event streaming service built on R2 object storage.
• It is designed for high-scale data movement and long-term retention.
• K2 decouples producers and consumers at the edge.
• It provides durable, ordered log streams without traditional broker operational overhead.

Why it matters

Builders and buyers of streaming systems get an option that avoids running traditional brokers, with storage handled by R2. That may reduce operational work for teams moving and retaining large event volumes.