FeatureFeb 24, 2026

WARP client for Windows (version 2026.1.150.0)

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

This release contains minor fixes, improvements, and new features.

Changes and improvements

Improvements to multi-user mode. Fixed an issue where when switching from a pre-login registration to a user registration, Mobile Device Management (MDM) configuration association could be lost.
Added a new feature to manage NetBIOS over TCP/IP functionality on the Windows client. NetBIOS over TCP/IP on the Windows client is now disabled by default and can be enabled in device profile settings.
Fixed an issue causing failure of the local network exclusion feature when configured with a timeout of 0.
Improvement for the Windows client certificate posture check to ensure logged results are from checks that run once users log in.
Improvement for more accurate reporting of device colocation information in the Cloudflare One dashboard.
Fixed an issue where misconfigured DEX HTTP tests prevented new registrations.
Fixed an issue causing DNS requests to fail with clients in Traffic and DNS mode.
Improved service shutdown behavior in cases where the daemon is unresponsive.

Known issues

To work around this issue, reconnect the WARP client by toggling off and back on.

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 KB5062553 or higher for resolution.
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.

FeatureFeb 24, 2026

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

This release contains minor fixes, improvements, and new features.

Changes and improvements

Improvements to multi-user mode. Fixed an issue where when switching from a pre-login registration to a user registration, Mobile Device Management (MDM) configuration association could be lost.
Added a new feature to manage NetBIOS over TCP/IP functionality on the Windows client. NetBIOS over TCP/IP on the Windows client is now disabled by default and can be enabled in device profile settings.
Fixed an issue causing failure of the local network exclusion feature when configured with a timeout of 0.
Improvement for the Windows client certificate posture check to ensure logged results are from checks that run once users log in.
Improvement for more accurate reporting of device colocation information in the Cloudflare One dashboard.
Fixed an issue where misconfigured DEX HTTP tests prevented new registrations.
Fixed an issue causing DNS requests to fail with clients in Traffic and DNS mode.
Improved service shutdown behavior in cases where the daemon is unresponsive.

Known issues

To work around this issue, reconnect the WARP client by toggling off and back on.

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 KB5062553 or higher for resolution.
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.

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