Changelog

New updates and improvements at Cloudflare.

WARP client for Windows (version 2025.5.943.0)

Jul 23, 2025

A new GA release for the Windows WARP client is now available on the stable releases downloads page.

This release contains minor fixes and improvements.

Changes and improvements

WARP proxy mode now uses the operating system's DNS settings. Changes made to system DNS settings while in proxy mode require the client to be turned off then back on to take effect.
Changes to the SCCM VPN boundary support feature to no longer restart the SMS Agent Host (ccmexec.exe) service.
Fixed an issue affecting clients in Split Tunnel Include mode, where access to split-tunneled traffic was blocked after reconnecting the client.

Known issues

For Windows 11 24H2 users, Microsoft has confirmed a regression that may lead to performance issues like mouse lag, audio cracking, or other slowdowns. Cloudflare recommends users experiencing these issues upgrade to a minimum Windows 11 24H2 version KB5062553 or higher for resolution.
Devices using WARP client 2025.4.929.0 and up may experience Local Domain Fallback failures if a fallback server has not been configured. To configure a fallback server, refer to Route traffic to fallback server.
Devices with KB5055523 installed may receive a warning about Win32/ClickFix.ABA being present in the installer. To resolve this false positive, update Microsoft Security Intelligence to version 1.429.19.0 or later.
DNS resolution may be broken when the following conditions are all true:
- WARP is in Secure Web Gateway without DNS filtering (tunnel-only) mode.
- A custom DNS server address is configured on the primary network adapter.
- The custom DNS server address on the primary network adapter is changed while WARP is connected.
To work around this issue, reconnect the WARP client by toggling off and back on.