Cloudflare One Client

A QUICker SASE client: re-building Proxy Mode

2026-03-05

By transitioning the Cloudflare One Client to use QUIC streams for Proxy Mode, we eliminated the overhead of user-space TCP stacks, resulting in a 2x increase in throughput and significant latency reduction for end users. ...

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  Koko Uko
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  Logan Praneis
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  Gregor Maier

Ending the "silent drop": how Dynamic Path MTU Discovery makes the Cloudflare One Client more resilient

2026-03-05

The Cloudflare One Client now features the ability to actively probe and adjust packet sizes. This update eliminates the problems caused by tunnel layering and MTU differences, providing more stability and resiliency. ...

• 
  Koko Uko
• 
  Rhett Griggs
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  Todd Murray