A QUICker SASE client: re-building Proxy Mode
ID: de418ed1-0545-59e2-9803-b5fb3b248fbc
STIX ID: report--de418ed1-0545-59e2-9803-b5fb3b248fbc
Feed Name: Cloudflare Blog
**Executive Summary:** Cloudflare rebuilt the Cloudflare One Client's local proxy mode to use QUIC (HTTP/3 CONNECT) and MASQUE streams rather than converting TCP to WireGuard L3 packets via smoltcp, which removes the smoltcp performance ceiling and enables native QUIC congestion/flow control and tunability; internal tests show roughly doubled upload/download speeds and significantly reduced latency, and the update is available starting with client version 2025.8.779.0 with dashboard configuration steps provided.
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