Changelog

A new GA release for the Windows Cloudflare One Client is now available on the stable releases downloads page.

This hotfix resolves a regression that caused a large increase in DNS-over-TCP queries to fallback and internal DNS servers. The client now sends fallback DNS queries over UDP first, falling back to TCP only when a response is truncated, instead of querying both protocols in parallel.

A new GA release for the macOS Cloudflare One Client is now available on the stable releases downloads page.

This hotfix resolves a regression that caused a large increase in DNS-over-TCP queries to fallback and internal DNS servers. The client now sends fallback DNS queries over UDP first, falling back to TCP only when a response is truncated, instead of querying both protocols in parallel.

A new GA release for the Linux Cloudflare One Client is now available on the stable releases downloads page.

This hotfix resolves a regression that caused a large increase in DNS-over-TCP queries to fallback and internal DNS servers. The client now sends fallback DNS queries over UDP first, falling back to TCP only when a response is truncated, instead of querying both protocols in parallel.

A new GA release for the Windows Cloudflare One Client is now available on the stable releases downloads page.

This hotfix addresses a Windows authentication issue in the embedded WebView2 browser. Single sign-on could fail to use the Windows primary account, causing users to be prompted for an interactive sign-in. The embedded authentication browser now allows SSO providers to use the OS primary account when available.

A new GA release for the Linux Cloudflare One Client is now available on the stable releases downloads page.

This package is the same release as 2026.6.822.0, with a fix for our RPM package. Previously the repository served a single build to every OS version, so an install could pull a dependency that isn't available on that release. The repository now serves the correct build for each operating system version, so installs automatically pull the dependencies that version requires. Debian and Ubuntu were not affected.

If you installed version 2026.6.822.0 on an RPM-based distribution, we recommend refreshing your repository configuration:

sudo curl -fsSL https://pkg.cloudflareclient.com/cloudflare-warp-ascii.repo | sudo tee /etc/yum.repos.d/cloudflare-warp.repo
sudo dnf clean all
sudo dnf install cloudflare-warp

A new GA release for the Windows Cloudflare One Client is now available on the stable releases downloads page.

This release introduces multiple features from our previous beta release into stable release, including:

• The client now applies DNS search suffixes configured in your device profile / network policy. Administrators can push a list of DNS search domains that the client appends to single-label queries, alongside any system-configured suffixes. See DNS search suffixes for details.
• Added mandatory authentication. When enabled via MDM, the Cloudflare One Client blocks all Internet traffic from the moment the machine boots until the user authenticates, closing the visibility gap on newly deployed devices and during re-authentication. See the announcement blog and documentation for details.
• Upgraded security of device registration to be hardware-backed. Registration tokens can now be generated in the TPM (with TPM 2.0+) whenever it is available to provide stronger protection against device impersonation. See Hardware-backed registration for details.
• Added a local-file signal source for Emergency Disconnect. In addition to the existing HTTPS polling mechanism, administrators can now configure WARP to monitor for a file on disk; the presence of the file triggers an emergency disconnect even if both Cloudflare and your own infrastructure are unreachable. Either signal being asserted triggers disconnect; both must be cleared for normal operation to resume.
• Added new warp-cli debug commands for interactive connection diagnosis. See Extra debug logging for details.
• The local DNS proxy now supports DNSSEC passthrough. DNSSEC-signed responses are forwarded to the application intact (including DO/AD bits and RRSIG records), so applications that validate DNSSEC locally — including resolvers and the dig/drill tooling — work correctly through the client.
• Added a new MDM format for organization-wide settings, including a cleaner way to configure the compliance environment (e.g. FedRAMP). The previous per-configuration approach still works, but the new format is now recommended. See the updated Cloudflare One MDM documentation for details.
• Added support for dashboard-managed client version deployments. Administrators can now upgrade or downgrade the client version on enrolled devices directly from the Zero Trust dashboard. See Client version assignments for details.

Additional Changes and improvements

• Starting with 2026.6.822.0, the client unifies all API requests under the api.devices.cloudflare.com SNI, where previously both zero-trust-client.cloudflareclient.com and notifications.cloudflareclient.com were used. Review Cloudflare One Client with firewall to ensure systems that rely on SNI inspection do not block the API traffic. The behavior of previous client versions is unaffected.
• Client Certificate device-posture checks now support template variables (e.g. ${serial_number}, ${device_uuid}) in the Subject Alternative Name field. Previously only the Common Name field accepted variables, which broke posture rules that pinned identity to a SAN entry.
• Improved accessibility by using high contrast colors and more defined color boundaries when high contrast is enabled in Windows Accessibility settings.
• Path MTU Discovery (PMTUD) is now enabled by default.
• The UseWebView2 registry value (HKLM\SOFTWARE\Cloudflare\CloudflareWARP\UseWebView2 = y) is once again honored by the new GUI for authentication, so administrators who prefer the embedded WebView2 browser for sign-in can opt back in. This setting was effectively ignored in the previous release; the default browser was always used. This key is now also honored for re-authentications.
• Fixed a crash in the authentication browser when navigating to a site that prompts for browser permissions (microphone, camera, notifications, etc.). The same fix had previously landed for the captive-portal browser; this extends it to the auth browser.
• Fixed an issue in proxy mode where hostnames containing underscores (e.g. ai_app.com) were rejected, breaking apps that depend on such hostnames (notably ChatGPT sandbox apps). The local proxy now accepts underscore-containing hostnames in CONNECT requests.
• Fixed an issue where DNS queries would fail after the connection was idle, requiring users to retry.
• Fixed a high CPU issue when the device wakes from sleep.
• Users can now register with team names in any case format without errors.
• New UI fixes
  • Fixed an issue where users with invalid MDM configurations were returned to the onboarding screen after successful authentication.
  • Added a re-auth button and banner to the home screen so users don't miss it when their session expires.
  • Added clear error messaging when the Cloudflare certificate needs to be installed.
  • Brought back support for pausing the tunnel when connected to user-specified Wi-Fi networks for consumer users.
  • New client UI now surfaces Split tunnel configuration and Local Domain Fallback configuration.
  • Added ability to configure proxy mode for consumer users.
  • Added back the option to quit for consumer users.

Known issues

• Single sign-on in the embedded WebView2 authentication browser may fail to use the Windows primary account, prompting for an interactive sign-in.
• An error indicating that Microsoft Edge can't read and write to its data directory may be displayed during captive portal login; this error is benign and can be dismissed.
• In rare cases, a registration may hang at "Checking your organization configuration" due to IPC errors. A system reboot should resolve the error, allowing registration to proceed.
• Windows ARM may prompt the user to close running applications while trying to install this version. Simply click "Ok" with the default highlighted option.

A new GA release for the macOS Cloudflare One Client is now available on the stable releases downloads page.

This release introduces multiple features from our previous beta release into stable release, including:

• The client now applies DNS search suffixes configured in your device profile / network policy. Administrators can push a list of DNS search domains that the client appends to single-label queries, alongside any system-configured suffixes. See DNS search suffixes for details.
• Upgraded security of device registration to be hardware-backed. Registration tokens can now be generated in the Secure Enclave whenever available to provide stronger protection against device impersonation. See Hardware-backed registration for details.
• Added a local-file signal source for Emergency Disconnect. In addition to the existing HTTPS polling mechanism, administrators can now configure WARP to monitor for a file on disk; the presence of the file triggers an emergency disconnect even if both Cloudflare and your own infrastructure are unreachable. Either signal being asserted triggers disconnect; both must be cleared for normal operation to resume.
• Added new warp-cli debug commands for interactive connection diagnosis. See Extra debug logging for details.
• The local DNS proxy now supports DNSSEC passthrough. DNSSEC-signed responses are forwarded to the application intact (including DO/AD bits and RRSIG records), so applications that validate DNSSEC locally — including resolvers and the dig/drill tooling — work correctly through the client.
• Added a new MDM format for organization-wide settings, including a cleaner way to configure the compliance environment (e.g. FedRAMP). The previous per-configuration approach still works, but the new format is now recommended. See the updated Cloudflare One MDM documentation for details.
• Added support for dashboard-managed client version deployments. Administrators can now upgrade or downgrade the client version on enrolled devices directly from the Zero Trust dashboard. See Client version assignments for details.

Additional Changes and improvements

• Starting with 2026.6.822.0, the client unifies all API requests under the api.devices.cloudflare.com SNI, where previously both zero-trust-client.cloudflareclient.com and notifications.cloudflareclient.com were used. Review Cloudflare One Client with firewall to ensure systems that rely on SNI inspection do not block the API traffic. The behavior of previous client versions is unaffected.
• Client Certificate device-posture checks now support template variables (e.g. ${serial_number}, ${device_uuid}) in the Subject Alternative Name field. Previously only the Common Name field accepted variables, which broke posture rules that pinned identity to a SAN entry.
• Improved accessibility by using high contrast colors and more defined color boundaries when high contrast is enabled in the macOS Display settings.
• Path MTU Discovery (PMTUD) is now enabled by default.
• Fixed the in-client captive-portal browser rendering a blank "Success" page on some airline Wi-Fi networks. The browser now more consistently loads the airline's real portal page so users can complete sign-in from inside the client instead of having to open a separate browser.
• Fixed an issue in proxy mode where hostnames containing underscores (e.g. ai_app.com) were rejected, breaking apps that depend on such hostnames (notably ChatGPT sandbox apps). The local proxy now accepts underscore-containing hostnames in CONNECT requests.
• Fixed an issue where DNS queries would fail after the connection was idle, requiring users to retry.
• Users can now register with team names in any case format without errors.
• New UI fixes
  • Fixed an issue where users with invalid MDM configurations were returned to the onboarding screen after successful authentication.
  • Added a re-auth button and banner to the home screen so users don't miss it when their session expires.
  • Added clear error messaging when the Cloudflare certificate needs to be installed.
  • Brought back support for pausing the tunnel when connected to user-specified Wi-Fi networks for consumer users.
  • New client UI now surfaces Split tunnel configuration and Local Domain Fallback configuration.
  • Added ability to configure proxy mode for consumer users.
  • Added back the option to quit for consumer users.

Known issues

• Registration may hang at "Checking your organization configuration" due to IPC errors. A system reboot should resolve the error, allowing registration to proceed.
• When deploying with Microsoft Intune, the client may be repeatedly reinstalled because Intune adds the client's embedded framework bundles to its install-detection list, and those frameworks cannot be detected as installed on their own. See Repeated reinstalls on macOS with Microsoft Intune for the workaround.

A new GA release for the Linux Cloudflare One Client is now available on the stable releases downloads page.

This release introduces multiple features from our previous beta release into stable release, including:

• The client now applies DNS search suffixes configured in your device profile / network policy. Administrators can push a list of DNS search domains that the client appends to single-label queries, alongside any system-configured suffixes. See DNS search suffixes for details.
• Upgraded security of device registration to be hardware-backed. Registration tokens can now be generated in the TPM (with TPM 2.0+) whenever it is available to provide stronger protection against device impersonation. See Hardware-backed registration for details.
• Added a local-file signal source for Emergency Disconnect. In addition to the existing HTTPS polling mechanism, administrators can now configure WARP to monitor for a file on disk; the presence of the file triggers an emergency disconnect even if both Cloudflare and your own infrastructure are unreachable. Either signal being asserted triggers disconnect; both must be cleared for normal operation to resume.
• Added new warp-cli debug commands for interactive connection diagnosis. See Extra debug logging for details.
• The local DNS proxy now supports DNSSEC passthrough. DNSSEC-signed responses are forwarded to the application intact (including DO/AD bits and RRSIG records), so applications that validate DNSSEC locally — including resolvers and the dig/drill tooling — work correctly through the client.
• Added a new MDM format for organization-wide settings, including a cleaner way to configure the compliance environment (e.g. FedRAMP). The previous per-configuration approach still works, but the new format is now recommended. See the updated Cloudflare One MDM documentation for details.

Additional changes and improvements

• Starting with 2026.6.822.0, the client unifies all API requests under the api.devices.cloudflare.com SNI, where previously both zero-trust-client.cloudflareclient.com and notifications.cloudflareclient.com were used. Review Cloudflare One Client with firewall to ensure systems that rely on SNI inspection do not block the API traffic. The behavior of previous client versions is unaffected.
• Cloudflare Mesh functionality using the Cloudflare One Client is now supported on RHEL 9 and 10.
• Cloudflare Mesh now supports hostname-based routing.
• Client Certificate device-posture checks now support template variables (e.g. ${serial_number}, ${device_uuid}) in the Subject Alternative Name field. Previously only the Common Name field accepted variables, which broke posture rules that pinned identity to a SAN entry.
• Improved accessibility by using high contrast colors and more defined color boundaries when high contrast is enabled in the system display settings.
• Path MTU Discovery (PMTUD) is now enabled by default.
• Fixed the in-client captive-portal browser rendering a blank "Success" page on some airline Wi-Fi networks. The browser now more consistently loads the airline's real portal page so users can complete sign-in from inside the client instead of having to open a separate browser.
• Fixed an issue in proxy mode where hostnames containing underscores (e.g. ai_app.com) were rejected, breaking apps that depend on such hostnames (notably ChatGPT sandbox apps). The local proxy now accepts underscore-containing hostnames in CONNECT requests.
• Fixed an issue where DNS queries would fail after the connection was idle, requiring users to retry.
• Fixed an issue where some Debian releases experienced inaccurate version reporting for posture checks.
• Users can now register with team names in any case format without errors.
• New UI fixes
  • Fixed an issue where users with invalid MDM configurations were returned to the onboarding screen after successful authentication.
  • Added a re-auth button and banner to the home screen so users don't miss it when their session expires.
  • Added clear error messaging when the Cloudflare certificate needs to be installed.
  • Brought back support for pausing the tunnel when connected to user-specified Wi-Fi networks for consumer users.
  • New client UI now surfaces Split tunnel configuration and Local Domain Fallback configuration.
  • Added ability to configure proxy mode for consumer users.
  • Added back the option to quit for consumer users.

For RHEL deployments, this release introduces a dependency on the Extra Packages for Enterprise Linux repository (EPEL). The EPEL repository provides packages that support the captive portal detection’s in-app browser authentication and system tray icon. See Getting started with EPEL for instructions on enabling EPEL.

Known issues

• Registration may hang at "Checking your organization configuration" due to IPC errors. A system reboot should resolve the error, allowing registration to proceed.

A new Beta release for the macOS Cloudflare One Client is now available on the beta releases downloads page.

This beta release introduces upgraded security of device registration to be hardware-backed. Registration tokens can now be generated in the Secure Enclave whenever available to provide stronger protection against device impersonation.

Additional changes and improvements

This release also introduces multiple fixes and improvements including:

• Improved accessibility by using high contrast colors and more defined color boundaries when high contrast is enabled in the macOS Display settings.
• Path MTU Discovery (PMTUD) is now enabled by default.
• Fixed an issue where DNS queries would fail after the connection was idle, requiring users to retry.
• Users can now register with team names in any case format without errors.
• New UI fixes
  • Fixed an issue where users with invalid MDM configurations were returned to the onboarding screen after successful authentication.
  • Added a re-auth button and banner to the home screen so users don't miss it when their session expires.
  • Added clear error messaging when the Cloudflare certificate needs to be installed.
  • Brought back support for pausing the tunnel when connected to user-specified Wi-Fi networks for consumer users.
  • New client UI now surfaces Split tunnel configuration and Local Domain Fallback configuration.
  • Added ability to configure proxy mode for consumer users.
  • Added back the option to quit for consumer users.

Known issues

• Registration may hang at "Checking your organization configuration" due to IPC errors. A system reboot should resolve the error, allowing registration to proceed.

A new Beta release for the macOS Cloudflare One Client is now available on the beta releases downloads page.

This release introduces the new Cloudflare One Client UI for macOS! You can expect a cleaner and more intuitive design as well as easier access to common actions and information. Here are some of the many things we have found our users appreciate:

• Right click context menu to access the most common client actions quickly
• Built-in captive portal login experience

Additional Changes and improvements

• The client now applies DNS search suffixes configured in your device profile / network policy. Administrators can push a list of DNS search domains that the client appends to single-label queries, alongside any system-configured suffixes. See DNS search suffixes for details.
• Administrators can now control which virtual networks (VNETs) are available to which users via WARP device profile settings in the Zero Trust dashboard. Previously, every VNET in the organization was visible to every device; you can now scope the VNET picker per profile so users only see the networks relevant to them. See VNET availability for details.
• Added a local-file signal source for Emergency Disconnect. In addition to the existing HTTPS polling mechanism, administrators can now configure WARP to monitor for a file on disk; the presence of the file triggers an emergency disconnect even if both Cloudflare and your own infrastructure are unreachable. Either signal being asserted triggers disconnect; both must be cleared for normal operation to resume.
• Added new warp-cli debug commands for interactive connection diagnosis. See Extra debug logging for details.
• The local DNS proxy now supports DNSSEC passthrough. DNSSEC-signed responses are forwarded to the application intact (including DO/AD bits and RRSIG records), so applications that validate DNSSEC locally — including resolvers and the dig/drill tooling — work correctly through the client.
• Added a new MDM format for organization-wide settings, including a cleaner way to configure the compliance environment (e.g. FedRAMP). The previous per-configuration approach still works, but the new format is now recommended. See the updated Cloudflare One MDM documentation for details.
• Client Certificate device-posture checks now support template variables (e.g. ${serial_number}, ${device_uuid}) in the Subject Alternative Name field, matching what the documentation has always claimed. Previously only the Common Name field accepted variables, which broke posture rules that pinned identity to a SAN entry.
• Fixed the in-client captive-portal browser rendering a blank "Success" page on some airline Wi-Fi networks (United inflight Wi-Fi was the reported case). The browser now reliably loads the airline's real portal page so users can complete sign-in from inside the client instead of having to open a separate browser.
• Fixed an issue in proxy mode where hostnames containing underscores (e.g. ai_app.com) were rejected, breaking apps that depend on such hostnames (notably ChatGPT sandbox apps). The local proxy now accepts underscore-containing hostnames in CONNECT requests.

Known issues

• Registration may hang at "Checking your organization configuration" due to IPC errors. A system reboot should resolve the error, allowing registration to proceed.
• Split tunnel list configuration is not available in the new UI. Management of split tunnel entries is currently only possible via warp-cli tunnel ip and warp-cli tunnel host. UI support will be added in a future release.

A new Beta release for the Windows Cloudflare One Client is now available on the beta releases downloads page.

This release introduces the new Cloudflare One Client UI for Windows! You can expect a cleaner and more intuitive design as well as easier access to common actions and information. Here are some of the many things we have found our users appreciate:

• Right click context menu to access the most common client actions quickly
• Built-in captive portal login experience

Additional Changes and improvements

• The client now applies DNS search suffixes configured in your device profile / network policy. Administrators can push a list of DNS search domains that the client appends to single-label queries, alongside any system-configured suffixes. See DNS search suffixes for details.
• Administrators can now control which virtual networks (VNETs) are available to which users via WARP device profile settings in the Zero Trust dashboard. Previously, every VNET in the organization was visible to every device; you can now scope the VNET picker per profile so users only see the networks relevant to them. See VNET availability for details.
• Added mandatory authentication. When enabled via MDM, the Cloudflare One Client blocks all Internet traffic from the moment the machine boots until the user authenticates, closing the visibility gap on newly deployed devices and during re-authentication. See the announcement blog and documentation for details.
• Added a local-file signal source for Emergency Disconnect. In addition to the existing HTTPS polling mechanism, administrators can now configure WARP to monitor for a file on disk; the presence of the file triggers an emergency disconnect even if both Cloudflare and your own infrastructure are unreachable. Either signal being asserted triggers disconnect; both must be cleared for normal operation to resume.
• Added new warp-cli debug commands for interactive connection diagnosis. See Extra debug logging for details.
• The local DNS proxy now supports DNSSEC passthrough. DNSSEC-signed responses are forwarded to the application intact (including DO/AD bits and RRSIG records), so applications that validate DNSSEC locally — including resolvers and the dig/drill tooling — work correctly through the client.
• Added a new MDM format for organization-wide settings, including a cleaner way to configure the compliance environment (e.g. FedRAMP). The previous per-configuration approach still works, but the new format is now recommended. See the updated Cloudflare One MDM documentation for details.
• Client Certificate device-posture checks now support template variables (e.g. ${serial_number}, ${device_uuid}) in the Subject Alternative Name field, matching what the documentation has always claimed. Previously only the Common Name field accepted variables, which broke posture rules that pinned identity to a SAN entry.
• The UseWebView2 registry value (HKLM\SOFTWARE\Cloudflare\CloudflareWARP\UseWebView2 = y) is once again honored by the new GUI for authentication, so administrators who prefer the embedded WebView2 browser for sign-in can opt back in. This setting was effectively ignored in the previous release; the default browser was always used. This key is now also honored for re-authentications.
• Fixed a crash in the authentication browser when navigating to a site that prompts for browser permissions (microphone, camera, notifications, etc.). The same fix had previously landed for the captive-portal browser; this extends it to the auth browser.
• Fixed an issue in proxy mode where hostnames containing underscores (e.g. ai_app.com) were rejected, breaking apps that depend on such hostnames (notably ChatGPT sandbox apps). The local proxy now accepts underscore-containing hostnames in CONNECT requests.

Known issues

• An error indicating that Microsoft Edge can't read and write to its data directory may be displayed during captive portal login; this error is benign and can be dismissed.
• Registration may hang at "Checking your organization configuration" due to IPC errors. A system reboot should resolve the error, allowing registration to proceed.
• Split tunnel list configuration is not available in the new UI. Management of Split Tunnel entries is currently only possible via warp-cli tunnel ip and warp-cli tunnel host. UI support will be added in a future release.
• Windows ARM may prompt the user to close running applications while trying to install this version. Simply click “Ok” with the default highlighted option.
• DNS resolution may be broken when the following conditions are all true:
  • The client 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 the client is connected.
    To work around this issue, please reconnect the client by selecting "disconnect" and then "connect" in the client user interface.

A new GA release for the macOS Cloudflare One Client is now available on the stable releases downloads page.

This release introduces the new Cloudflare One Client UI for macOS! You can expect a cleaner and more intuitive design as well as easier access to common actions and information. Here are some of the many things we have found our users appreciate:

• Right click context menu to access the most common client actions quickly
• Built-in captive portal login experience

Additional Changes and improvements

• Added a new CLI command: warp-cli mdm refresh. This command executes an immediate refresh of the Mobile Device Management (MDM) configuration file.
• Fixed a proxy mode connection stall issue.

Known issues

• Registration may hang at "Checking your organization configuration" due to IPC errors. A system reboot should resolve the error, allowing registration to proceed.
• Split tunnel list configuration is not available in the new UI. Management of split tunnel entries is currently only possible via warp-cli tunnel ip and warp-cli tunnel host. UI support will be added in a future release.

A new GA release for the Windows Cloudflare One Client is now available on the stable releases downloads page.

This release introduces the new Cloudflare One Client UI for Windows! You can expect a cleaner and more intuitive design as well as easier access to common actions and information. Here are some of the many things we have found our users appreciate:

• Right click context menu to access the most common client actions quickly
• Built-in captive portal login experience

Additional Changes and improvements

• Added a new CLI command: warp-cli mdm refresh. This command executes an immediate refresh of the Mobile Device Management (MDM) configuration file.
• Fixed a proxy mode connection stall issue.

Known issues

• Registration authentication for devices via the integrated WebView2 browser is unavailable in this version as a temporary measure. As a result, the client will utilize the default browser on the device to complete the authentication process.
• An error indicating that Microsoft Edge can't read and write to its data directory may be displayed during captive portal login; this error is benign and can be dismissed.
• Registration may hang at "Checking your organization configuration" due to IPC errors. A system reboot should resolve the error, allowing registration to proceed.
• Split tunnel list configuration is not available in the new UI. Management of Split Tunnel entries is currently only possible via warp-cli tunnel ip and warp-cli tunnel host. UI support will be added in a future release.
• Windows ARM may prompt the user to close running applications while trying to install this version. Simply click “Ok” with the default highlighted option.
• DNS resolution may be broken when the following conditions are all true:
  • The client 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 the client is connected.
    To work around this issue, please reconnect the client by selecting "disconnect" and then "connect" in the client user interface.

A new GA release for the Linux Cloudflare One Client is now available on the stable releases downloads page.

This release introduces the new Cloudflare One Client UI for Linux! You can expect a cleaner and more intuitive design as well as easier access to common actions and information. Here are some of the many things we have found our users appreciate:

• Right click context menu to access the most common client actions quickly
• Built-in captive portal login experience

Changes and improvements

• Added a new CLI command: warp-cli mdm refresh. This command executes an immediate refresh of the Mobile Device Management (MDM) configuration file.
• Official support for RHEL 9 has been added for Cloudflare Mesh nodes. To install the RHEL 9 package, the Extra Packages for Enterprise Linux (EPEL) repository must be active, as it contains dependencies required for the tray icon and captive portal webview.
• Fixed a proxy mode connection stall issue.

Known issues

• Registration may hang at "Checking your organization configuration" due to IPC errors. A system reboot should resolve the error, allowing registration to proceed.
• Split tunnel list configuration is not available in the new UI. Management of split tunnel entries is currently only possible via warp-cli tunnel ip and warp-cli tunnel host. UI support will be added in a future release.

A new GA release for the Windows Cloudflare One Client is now available on the stable releases downloads page.

This release introduces the new Cloudflare One Client UI for Windows! You can expect a cleaner and more intuitive design as well as easier access to common actions and information. Here are some of the many things we have found our users appreciate:

• Right click context menu to access the most common client actions quickly
• Built-in captive portal login experience

Additional Changes and improvements

• Added a new CLI command: warp-cli mdm refresh. This command executes an immediate refresh of the Mobile Device Management (MDM) configuration file.

Known issues

• Registration authentication for devices via the integrated WebView2 browser is unavailable in this version as a temporary measure. As a result, the client will utilize the default browser on the device to complete the authentication process.
• An error indicating that Microsoft Edge can't read and write to its data directory may be displayed during captive portal login; this error is benign and can be dismissed.
• Registration may hang at "Checking your organization configuration" due to IPC errors. A system reboot should resolve the error, allowing registration to proceed.
• Split tunnel list configuration is not available in the new UI. Management of Split Tunnel entries is currently only possible via warp-cli tunnel ip and warp-cli tunnel host. UI support will be added in a future release.
• Windows ARM may prompt the user to close running applications while trying to install this version. Simply click “Ok” with the default highlighted option.
• DNS resolution may be broken when the following conditions are all true:
  • The client 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 the client is connected.
    To work around this issue, please reconnect the client by selecting "disconnect" and then "connect" in the client user interface.

A new GA release for the macOS Cloudflare One Client is now available on the stable releases downloads page.

This release introduces the new Cloudflare One Client UI for macOS! You can expect a cleaner and more intuitive design as well as easier access to common actions and information. Here are some of the many things we have found our users appreciate:

• Right click context menu to access the most common client actions quickly
• Built-in captive portal login experience

Additional Changes and improvements

• Added a new CLI command: warp-cli mdm refresh. This command executes an immediate refresh of the Mobile Device Management (MDM) configuration file.

Known issues

• Registration may hang at "Checking your organization configuration" due to IPC errors. A system reboot should resolve the error, allowing registration to proceed.
• Split tunnel list configuration is not available in the new UI. Management of split tunnel entries is currently only possible via warp-cli tunnel ip and warp-cli tunnel host. UI support will be added in a future release.

A new GA release for the Linux Cloudflare One Client is now available on the stable releases downloads page.

This release introduces the new Cloudflare One Client UI for Linux! You can expect a cleaner and more intuitive design as well as easier access to common actions and information. Here are some of the many things we have found our users appreciate:

• Right click context menu to access the most common client actions quickly
• Built-in captive portal login experience

Changes and improvements

• Added a new CLI command: warp-cli mdm refresh. This command executes an immediate refresh of the Mobile Device Management (MDM) configuration file.
• Official support for RHEL 9 has been added for Cloudflare Mesh nodes. To install the RHEL 9 package, the Extra Packages for Enterprise Linux (EPEL) repository must be active, as it contains dependencies required for the tray icon and captive portal webview.

Known issues

• Registration may hang at "Checking your organization configuration" due to IPC errors. A system reboot should resolve the error, allowing registration to proceed.
• Split tunnel list configuration is not available in the new UI. Management of split tunnel entries is currently only possible via warp-cli tunnel ip and warp-cli tunnel host. UI support will be added in a future release.

A new GA release for the Windows Cloudflare One Client is now available on the stable releases downloads page.

This release contains minor fixes and improvements.

The next stable release for Windows will introduce the new Cloudflare One Client UI, providing a cleaner and more intuitive design as well as easier access to common actions and information.

Changes and improvements

• Fixed an issue causing Windows client tunnel interface initialization failure which prevented clients from establishing a tunnel for connection.
• Consumer-only CLI commands are now clearly distinguished from Zero Trust commands.
• Added detailed QUIC connection metrics to diagnostic logs for better troubleshooting.
• Added monitoring for tunnel statistics collection timeouts.
• Switched tunnel congestion control algorithm for local proxy mode to Cubic for improved reliability across platforms.
• Fixed packet capture failing on tunnel interface when the tunnel interface is renamed by SCCM VPN boundary support.
• Fixed unnecessary registration deletion caused by RDP connections in multi-user mode.
• Fixed increased tunnel interface start-up time due to a race between duplicate address detection (DAD) and disabling NetBT.
• Fixed tunnel failing to connect when the system DNS search list contains unexpected characters.
• Empty MDM files are now rejected instead of being incorrectly accepted as a single MDM config.
• Fixed an issue in local proxy mode where the client could become unresponsive due to upstream connection timeouts.
• Fixed an issue where the emergency disconnect status of a prior organization persisted after a switch to a different organization.
• Fixed initiating managed network detections checks when no network is available, which caused device profile flapping.
• Fixed an issue where degraded Windows Management Instrumentation (WMI) state could put the client in a failed connection state loop during initialization.

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. This warning will be omitted from future release notes. This Windows update was released in July 2025.

• 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. This warning will be omitted from future release notes. This Microsoft Security Intelligence update was released in May 2025.

• DNS resolution may be broken when the following conditions are all true:

  • The client 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 the client is connected.

  To work around this issue, reconnect the client by selecting Disconnect and then Connect in the client user interface.

A new GA release for the macOS Cloudflare One Client is now available on the stable releases downloads page.

This release contains minor fixes and improvements.

The next stable release for macOS will introduce the new Cloudflare One Client UI, providing a cleaner and more intuitive design as well as easier access to common actions and information.

Changes and improvements

• Empty MDM files are now rejected instead of being incorrectly accepted as a single MDM config.
• Fixed an issue in local proxy mode where the client could become unresponsive due to upstream connection timeouts.
• Fixed an issue where the emergency disconnect status of a prior organization persisted after a switch to a different organization.
• Consumer-only CLI commands are now clearly distinguished from Zero Trust commands.
• Added detailed QUIC connection metrics to diagnostic logs for better troubleshooting.
• Added monitoring for tunnel statistics collection timeouts.
• Switched tunnel congestion control algorithm for local proxy mode to Cubic for improved reliability across platforms.
• Fixed initiating managed network detections checks when no network is available, which caused device profile flapping.

A new GA release for the Linux Cloudflare One Client is now available on the stable releases downloads page.

This release contains minor fixes and improvements.

The next stable release for Linux will introduce the new Cloudflare One Client UI, providing a cleaner and more intuitive design as well as easier access to common actions and information.

Changes and improvements

• Empty MDM files are now rejected instead of being incorrectly accepted as a single MDM config.
• Fixed an issue in local proxy mode where the client could become unresponsive due to upstream connection timeouts.
• Fixed an issue where the emergency disconnect status of a prior organization persisted after a switch to a different organization.
• Consumer-only CLI commands are now clearly distinguished from Zero Trust commands.
• Added detailed QUIC connection metrics to diagnostic logs for better troubleshooting.
• Added monitoring for tunnel statistics collection timeouts.
• Switched tunnel congestion control algorithm for local proxy mode to Cubic for improved reliability across platforms.
• Fixed initiating managed network detections checks when no network is available, which caused device profile flapping.

A new Beta release for the macOS WARP client is now available on the beta releases downloads page.

This release contains minor fixes and introduces a brand new visual style for the client interface. The new Cloudflare One Client interface changes connectivity management from a toggle to a button and brings useful connectivity settings to the home screen. The redesign also introduces a collapsible navigation bar. When expanded, more client information can be accessed including connectivity, settings, and device profile information. If you have any feedback or questions, visit the Cloudflare Community forum and let us know.

Changes and improvements

• Empty MDM files are now rejected instead of being incorrectly accepted as a single MDM config.
• Fixed an issue in proxy mode where the client could become unresponsive due to upstream connection timeouts.
• Fixed emergency disconnect state from a previous organization incorrectly persisting after switching organizations.
• Consumer-only CLI commands are now clearly distinguished from Zero Trust commands.
• Added detailed QUIC connection metrics to diagnostic logs for better troubleshooting.
• Added monitoring for tunnel statistics collection timeouts.
• Switched tunnel congestion control algorithm to Cubic for improved reliability across platforms.
• Fixed initiating managed network detection checks when no network is available, which caused device profile flapping.

Known issues

• The client may become stuck in a Connecting state. To resolve this issue, reconnect the client by selecting Disconnect and then Connect in the client user interface. Alternatively, change the client's operation mode.
• The client may display an empty white screen upon the device waking from sleep. To resolve this issue, exit and then open the client to re-launch it.
• Canceling login during a single MDM configuration setup results in an empty page with no way to resume authentication. To work around this issue, exit and relaunch the client.

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

This release contains minor fixes and introduces a brand new visual style for the client interface. The new Cloudflare One Client interface changes connectivity management from a toggle to a button and brings useful connectivity settings to the home screen. The redesign also introduces a collapsible navigation bar. When expanded, more client information can be accessed including connectivity, settings, and device profile information. If you have any feedback or questions, visit the Cloudflare Community forum and let us know.

Changes and improvements

• Consumer-only CLI commands are now clearly distinguished from Zero Trust commands.
• Added detailed QUIC connection metrics to diagnostic logs for better troubleshooting.
• Added monitoring for tunnel statistics collection timeouts.
• Switched tunnel congestion control algorithm to Cubic for improved reliability across platforms.
• Fixed packet capture failing on tunnel interface when the tunnel interface is renamed by SCCM VPN boundary support.
• Fixed unnecessary registration deletion caused by RDP connections in multi-user mode.
• Fixed increased tunnel interface start-up time due to a race between duplicate address detection (DAD) and disabling NetBT.
• Fixed tunnel failing to connect when the system DNS search list contains unexpected characters.
• Empty MDM files are now rejected instead of being incorrectly accepted as a single MDM config.
• Fixed an issue in proxy mode where the client could become unresponsive due to upstream connection timeouts.
• Fixed emergency disconnect state from a previous organization incorrectly persisting after switching organizations.
• Fixed initiating managed network detection checks when no network is available, which caused device profile flapping.

Known issues

• The client may unexpectedly terminate during captive portal login. To work around this issue, use a web browser to authenticate with the captive portal and then re-launch the client.
• An error indicating that Microsoft Edge can't read and write to its data directory may be displayed during captive portal login; this error is benign and can be dismissed.
• The client may become stuck in a Connecting state. To resolve this issue, reconnect the client by selecting Disconnect and then Connect in the client user interface. Alternatively, change the client's operation mode.
• The client may display an empty white screen upon the device waking from sleep. To resolve this issue, exit and then open the client to re-launch it.
• Canceling login during a single MDM configuration setup results in an empty page with no way to resume authentication. To work around this issue, exit and relaunch the client.
• 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 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. This warning will be omitted from future release notes. This Microsoft Security Intelligence update was released in May 2025.
• DNS resolution may be broken when the following conditions are all true:
  • The client 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 the client is connected. To work around this issue, reconnect the client by selecting Disconnect and then Connect in the client user interface.

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

• 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.

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

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

This release contains minor fixes and improvements.

Changes and improvements

• Fixed an issue causing failure of the local network exclusion feature when configured with a timeout of 0.
• Improvement for more accurate reporting of device colocation information in the Cloudflare One dashboard.
• Fixed an issue with DNS server configuration failures that caused tunnel connection delays.
• 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.

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

This release contains minor fixes and improvements.

WARP client version 2025.8.779.0 introduced an updated public key for Linux packages. The public key must be updated if it was installed before September 12, 2025 to ensure the repository remains functional after December 4, 2025. Instructions to make this update are available at pkg.cloudflareclient.com.

Changes and improvements

• Fixed an issue causing failure of the local network exclusion feature when configured with a timeout of 0.
• 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 issues causing DNS requests to fail with clients in Traffic and DNS mode or DNS only mode.