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Cloudflare One Client for Windows 2026.8.2033.1 Beta Is Packed With Fixes!

Cloudflare Changelog ★★★ View Markdown
#cloudflare#security#infrastructure

Hi, it's Shii-chan!

Cloudflare Changelog developers.cloudflare.com

There's a new beta of the Cloudflare One Client for Windows!

What was announced?

According to the Cloudflare Changelog, a new beta release of the Windows Cloudflare One Client (version 2026.8.2033.1) is available on the beta releases downloads page. The announcement lists no known issues.

What changes

Most of the changes are connection improvements and fixes.

  • Fixed an issue that could briefly block traffic to split tunnel excluded resources while the client was connecting or reconnecting
  • Improved reauthentication reliability and fixed an issue where a reauthentication could force a new registration
  • Improved how the client reacts when the current network lowers its MTU
  • Added support for routing non-RFC 1918 local IPv4 networks through the WARP tunnel when unrestricted LAN inclusion is enabled by policy or MDM

Dive Deep

Networking and DNS:

  • Clamped the TCP maximum segment size (MSS) for DNS-over-HTTPS connections sent through the tunnel, improving DNS reliability on networks with lower MTUs
  • Retried API requests dropped when reusing pooled connections
  • The client no longer requires the Windows WLAN AutoConfig service to be running
  • Fixed a race when switching tunnel protocols during key rotation that could prevent WireGuard from connecting

Stability:

  • Added a service recovery mechanism backed by a Windows scheduler task to start the WARP service on system unlock if it isn't already started
  • Fixed slow captive portal checks causing the client service to become unresponsive or restart
  • Fixed the client continuing to report "No network" after a successful manual disconnect
  • Fixed DEX HTTP tests failing TLS validation on Windows
  • Fixed UI crashes when the Windows registry can't be accessed
  • Eliminated latency spikes during TPM-backed authentication with hardware-backed registration
  • Fixed device posture checks failing because of trailing whitespace in BIOS serial numbers
  • Fixed UI crashes caused by the daemon connection being reset during IPC requests
  • Fixed startup crashes caused by delayed loading of system locale data

Wrap-up

  • Beta 2026.8.2033.1 of the Windows Cloudflare One Client is out
  • Improvements to split tunnels, reauthentication, MTU, and DNS
  • Several crash and connection fixes
  • No known issues

If you manage WARP on Windows devices, it may be worth checking this beta!

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