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Changelog

New updates and improvements at Cloudflare.

Network security
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  1. Cloudflare One Appliance now supports Link Aggregation Control Protocol (LACP), allowing you to bundle up to six physical LAN ports into a single logical interface. Link aggregation increases available bandwidth and eliminates single points of failure on the LAN side of the appliance.

    This feature is available in beta on physical appliance hardware with the latest OS. No entitlement is required.

    To configure a Link Aggregation Group, refer to Configure link aggregation groups.

  1. Two new fields are now available in rule expressions that surface Layer 4 transport telemetry from the client connection. Together with the existing cf.timings.client_tcp_rtt_msec field, these fields give you a complete picture of connection quality for both TCP and QUIC traffic — enabling transport-aware rules without requiring any client-side changes.

    Previously, QUIC RTT and delivery rate data was only available via the Server-Timing: cfL4 response header. These new fields make the same data available directly in rule expressions, so you can use them in Transform Rules, WAF Custom Rules, and other phases that support dynamic fields.

    New fields

    FieldTypeDescription
    cf.timings.client_quic_rtt_msecIntegerThe smoothed QUIC round-trip time (RTT) between Cloudflare and the client in milliseconds. Only populated for QUIC (HTTP/3) connections. Returns 0 for TCP connections.
    cf.edge.l4.delivery_rateIntegerThe most recent data delivery rate estimate for the client connection, in bytes per second. Returns 0 when L4 statistics are not available for the request.

    Example: Route slow connections to a lightweight origin

    Use a request header transform rule to tag requests from high-latency connections, so your origin can serve a lighter page variant:

    Rule expression:

    cf.timings.client_tcp_rtt_msec > 200 or cf.timings.client_quic_rtt_msec > 200

    Header modifications:

    OperationHeader nameValue
    SetX-High-Latencytrue

    Example: Match low-bandwidth connections

    cf.edge.l4.delivery_rate > 0 and cf.edge.l4.delivery_rate < 100000

    For more information, refer to Request Header Transform Rules and the fields reference.

  1. Cloudflare now exposes four new fields in the Transform Rules phase that encode client certificate data in RFC 9440 format. Previously, forwarding client certificate information to your origin required custom parsing of PEM-encoded fields or non-standard HTTP header formats. These new fields produce output in the standardized Client-Cert and Client-Cert-Chain header format defined by RFC 9440, so your origin can consume them directly without any additional decoding logic.

    Each certificate is DER-encoded, Base64-encoded, and wrapped in colons. For example, :MIIDsT...Vw==:. A chain of intermediates is expressed as a comma-separated list of such values.

    New fields

    FieldTypeDescription
    cf.tls_client_auth.cert_rfc9440StringThe client leaf certificate in RFC 9440 format. Empty if no client certificate was presented.
    cf.tls_client_auth.cert_rfc9440_too_largeBooleantrue if the leaf certificate exceeded 10 KB and was omitted. In practice this will almost always be false.
    cf.tls_client_auth.cert_chain_rfc9440StringThe intermediate certificate chain in RFC 9440 format as a comma-separated list. Empty if no intermediate certificates were sent or if the chain exceeded 16 KB.
    cf.tls_client_auth.cert_chain_rfc9440_too_largeBooleantrue if the intermediate chain exceeded 16 KB and was omitted.

    The chain encoding follows the same ordering as the TLS handshake: the certificate closest to the leaf appears first, working up toward the trust anchor. The root certificate is not included.

    Example: Forwarding client certificate headers to your origin server

    Add a request header transform rule to set the Client-Cert and Client-Cert-Chain headers on requests forwarded to your origin server. For example, to forward headers for verified, non-revoked certificates:

    Rule expression:

    cf.tls_client_auth.cert_verified and not cf.tls_client_auth.cert_revoked

    Header modifications:

    OperationHeader nameValue
    SetClient-Certcf.tls_client_auth.cert_rfc9440
    SetClient-Cert-Chaincf.tls_client_auth.cert_chain_rfc9440

    To get the most out of these fields, upload your client CA certificate to Cloudflare so that Cloudflare validates the client certificate at the edge and populates cf.tls_client_auth.cert_verified and cf.tls_client_auth.cert_revoked.

    For more information, refer to Mutual TLS authentication, Request Header Transform Rules, and the fields reference.

  1. The top-level Interconnects page in the Cloudflare dashboard has been removed. Interconnects are now located under Connectors > Interconnects.

    Your existing configurations and functionality remain the same.

  1. In the Cloudflare One dashboard, the overview page for a specific Cloudflare Tunnel now shows all replicas of that tunnel and supports streaming logs from multiple replicas at once.

    View replicas and stream logs from multiple connectors

    Previously, you could only stream logs from one replica at a time. With this update:

    • Replicas on the tunnel overview — All active replicas for the selected tunnel now appear on that tunnel's overview page under Connectors. Select any replica to stream its logs.
    • Multi-connector log streaming — Stream logs from multiple replicas simultaneously, making it easier to correlate events across your infrastructure during debugging or incident response. To try it out, log in to Cloudflare One and go to Networks > Connectors > Cloudflare Tunnels. Select View logs next to the tunnel you want to monitor.

    For more information, refer to Tunnel log streams and Deploy replicas.

  1. You can now manage Cloudflare Tunnels directly from Wrangler, the CLI for the Cloudflare Developer Platform. The new wrangler tunnel commands let you create, run, and manage tunnels without leaving your terminal.

    Wrangler tunnel commands demo

    Available commands:

    • wrangler tunnel create — Create a new remotely managed tunnel.
    • wrangler tunnel list — List all tunnels in your account.
    • wrangler tunnel info — Display details about a specific tunnel.
    • wrangler tunnel delete — Delete a tunnel.
    • wrangler tunnel run — Run a tunnel using the cloudflared daemon.
    • wrangler tunnel quick-start — Start a free, temporary tunnel without an account using Quick Tunnels.

    Wrangler handles downloading and managing the cloudflared binary automatically. On first use, you will be prompted to download cloudflared to a local cache directory.

    These commands are currently experimental and may change without notice.

    To get started, refer to the Wrangler tunnel commands documentation.

  1. The cf.timings.worker_msec field is now available in the Ruleset Engine. This field reports the wall-clock time that a Cloudflare Worker spent handling a request, measured in milliseconds.

    You can use this field to identify slow Worker executions, detect performance regressions, or build rules that respond differently based on Worker processing time, such as logging requests that exceed a latency threshold.

    Field details

    FieldTypeDescription
    cf.timings.worker_msecIntegerThe time spent executing a Cloudflare Worker in milliseconds. Returns 0 if no Worker was invoked.

    Example filter expression:

    cf.timings.worker_msec > 500

    For more information, refer to the Fields reference.

  1. Cloudflare Tunnel is now available in the main Cloudflare Dashboard at Networking > Tunnels, bringing first-class Tunnel management to developers using Tunnel for securing origin servers.

    Manage Tunnels in the Core Dashboard

    This new experience provides everything you need to manage Tunnels for public applications, including:

    Choose the right dashboard for your use case

    Core Dashboard: Navigate to Networking > Tunnels to manage Tunnels for:

    Cloudflare One Dashboard: Navigate to Zero Trust > Networks > Connectors to manage Tunnels for:

    Both dashboards provide complete Tunnel management capabilities — choose based on your primary workflow.

    Get started

    New to Tunnel? Learn how to get started with Cloudflare Tunnel or explore advanced use cases like securing SSH servers or running Tunnels in Kubernetes.

  1. We are updating naming related to some of our Networking products to better clarify their place in the Zero Trust and Secure Access Service Edge (SASE) journey.

    We are retiring some older brand names in favor of names that describe exactly what the products do within your network. We are doing this to help customers build better, clearer mental models for comprehensive SASE architecture delivered on Cloudflare.

    What's changing

    • Magic WANCloudflare WAN
    • Magic WAN IPsecCloudflare IPsec
    • Magic WAN GRECloudflare GRE
    • Magic WAN ConnectorCloudflare One Appliance
    • Magic FirewallCloudflare Network Firewall
    • Magic Network MonitoringNetwork Flow
    • Magic Cloud NetworkingCloudflare One Multi-cloud Networking

    No action is required by you — all functionality, existing configurations, and billing will remain exactly the same.

    For more information, visit the Cloudflare One documentation.

  1. Cloudflare WAN now displays your Anycast IP addresses directly in the dashboard when you configure IPsec or GRE tunnels.

    Previously, customers received their Anycast IPs during onboarding or had to retrieve them with an API call. The dashboard now pre-loads these addresses, reducing setup friction and preventing configuration errors.

    No action is required. All Cloudflare WAN customers can see their Anycast IPs in the tunnel configuration form automatically.

    For more information, refer to Configure tunnel endpoints.

  1. Cloudflare One Appliance version 2026.2.0 adds post-quantum encryption support using hybrid ML-KEM (Module-Lattice-Based Key-Encapsulation Mechanism).

    The appliance now uses TLS 1.3 with hybrid ML-KEM for its connection to the Cloudflare edge. During the TLS handshake, the appliance and the edge share a symmetric secret over the TLS connection and inject it into the ESP layer of IPsec. This protects IPsec data plane traffic against harvest-now, decrypt-later attacks.

    This upgrade deploys automatically to all appliances during their configured interrupt windows with no manual action required.

    For more information, refer to Cloudflare One Appliance.

  1. Magic WAN and Magic Transit customers can use the Cloudflare dashboard to configure and manage BGP peering between their networks and their Magic routing table when using IPsec and GRE tunnel on-ramps (beta).

    Using BGP peering allows customers to:

    • Automate the process of adding or removing networks and subnets.
    • Take advantage of failure detection and session recovery features.

    With this functionality, customers can:

    • Establish an eBGP session between their devices and the Magic WAN / Magic Transit service when connected via IPsec and GRE tunnel on-ramps.
    • Secure the session by MD5 authentication to prevent misconfigurations.
    • Exchange routes dynamically between their devices and their Magic routing table.

    For configuration details, refer to:

  1. Cloudflare source IPs are the IP addresses used by Cloudflare services (such as Load Balancing, Gateway, and Browser Isolation) when sending traffic to your private networks.

    For customers using legacy mode routing, traffic to private networks is sourced from public Cloudflare IPs, which may cause IP conflicts. For customers using Unified Routing mode (beta), traffic to private networks is sourced from dedicated, non-Internet-routable private IPv4 range to ensure:

    • Symmetric routing over private network connections
    • Proper firewall state preservation
    • Private traffic stays on secure paths

    Key details:

    • IPv4: Sourced from 100.64.0.0/12 by default, configurable to any /12 CIDR
    • IPv6: Sourced from 2606:4700:cf1:5000::/64 (not configurable)
    • Affected connectors: GRE, IPsec, CNI, WARP Connector, and WARP Client (Cloudflare Tunnel is not affected)

    Configuring Cloudflare source IPs requires Unified Routing (beta) and the Cloudflare One Networks Write permission.

    For configuration details, refer to Configure Cloudflare source IPs.

  1. You can now control how Cloudflare buffers HTTP request and response bodies using two new settings in Configuration Rules.

    Request body buffering

    Controls how Cloudflare buffers HTTP request bodies before forwarding them to your origin server:

    ModeBehavior
    Standard (default)Cloudflare can inspect a prefix of the request body for enabled functionality such as WAF and Bot Management.
    FullBuffers the entire request body before sending to origin.
    NoneNo buffering — the request body streams directly to origin without inspection.

    Response body buffering

    Controls how Cloudflare buffers HTTP response bodies before forwarding them to the client:

    ModeBehavior
    Standard (default)Cloudflare can inspect a prefix of the response body for enabled functionality.
    NoneNo buffering — the response body streams directly to the client without inspection.

    API example

    {
    "action": "set_config",
    "action_parameters": {
    "request_body_buffering": "standard",
    "response_body_buffering": "none"
    }
    }

    For more information, refer to Configuration Rules.

  1. Cloudflare Rulesets now includes encode_base64() and sha256() functions, enabling you to generate signed request headers directly in rule expressions. These functions support common patterns like constructing a canonical string from request attributes, computing a SHA256 digest, and Base64-encoding the result.


    New functions

    FunctionDescriptionAvailability
    encode_base64(input, flags)Encodes a string to Base64 format. Optional flags parameter: u for URL-safe encoding, p for padding (adds = characters to make the output length a multiple of 4, as required by some systems). By default, output is standard Base64 without padding.All plans (in header transform rules)
    sha256(input)Computes a SHA256 hash of the input string.Requires enablement

    Examples

    Encode a string to Base64 format:

    encode_base64("hello world")

    Returns: aGVsbG8gd29ybGQ

    Encode a string to Base64 format with padding:

    encode_base64("hello world", "p")

    Returns: aGVsbG8gd29ybGQ=

    Perform a URL-safe Base64 encoding of a string:

    encode_base64("hello world", "u")

    Returns: aGVsbG8gd29ybGQ

    Compute the SHA256 hash of a secret token:

    sha256("my-token")

    Returns a hash that your origin can validate to authenticate requests.

    Compute the SHA256 hash of a string and encode the result to Base64 format:

    encode_base64(sha256("my-token"))

    Combines hashing and encoding for systems that expect Base64-encoded signatures.

    For more information, refer to the Functions reference.

  1. New functions for array and map operations

    Cloudflare Rulesets now include new functions that enable advanced expression logic for evaluating arrays and maps. These functions allow you to build rules that match against lists of values in request or response headers, enabling use cases like country-based blocking using custom headers.


    New functions

    FunctionDescription
    split(source, delimiter)Splits a string into an array of strings using the specified delimiter.
    join(array, delimiter)Joins an array of strings into a single string using the specified delimiter.
    has_key(map, key)Returns true if the specified key exists in the map.
    has_value(map, value)Returns true if the specified value exists in the map.

    Example use cases

    Check if a country code exists in a header list:

    has_value(split(http.response.headers["x-allow-country"][0], ","), ip.src.country)

    Check if a specific header key exists:

    has_key(http.request.headers, "x-custom-header")

    Join array values for logging or comparison:

    join(http.request.headers.names, ", ")

    For more information, refer to the Functions reference.

  1. The Network Services menu structure in Cloudflare's dashboard has been updated to reflect solutions and capabilities instead of product names. This will make it easier for you to find what you need and better reflects how our services work together.

    Your existing configurations will remain the same, and you will have access to all of the same features and functionality.

    The changes visible in your dashboard may vary based on the products you use. Overall, changes relate to Magic Transit, Magic WAN, and Magic Firewall.

    Summary of changes:

    • A new Overview page provides access to the most common tasks across Magic Transit and Magic WAN.
    • Product names have been removed from top-level navigation.
    • Magic Transit and Magic WAN configuration is now organized under Routes and Connectors. For example, you will find IP Prefixes under Routes, and your GRE/IPsec Tunnels under Connectors.
    • Magic Firewall policies are now called Firewall Policies.
    • Magic WAN Connectors and Connector On-Ramps are now referenced in the dashboard as Appliances and Appliance profiles. They can be found under Connectors > Appliances.
    • Network analytics, network health, and real-time analytics are now available under Insights.
    • Packet Captures are found under Insights > Diagnostics.
    • You can manage your Sites from Insights > Network health.
    • You can find Magic Network Monitoring under Insights > Network flow.

    If you would like to provide feedback, complete this form. You can also find these details in the January 7, 2026 email titled [FYI] Upcoming Network Services Dashboard Navigation Update.

    Networking Navigation
  1. We have made it easier to validate connectivity when deploying WARP Connector as part of your software-defined private network.

    You can now ping the WARP Connector host directly on its LAN IP address immediately after installation. This provides a fast, familiar way to confirm that the Connector is online and reachable within your network before testing access to downstream services.

    Starting with version 2025.10.186.0, WARP Connector responds to traffic addressed to its own LAN IP, giving you immediate visibility into Connector reachability.

    Learn more about deploying WARP Connector and building private network connectivity with Cloudflare One.

  1. The ip.src.metro_code field in the Ruleset Engine is now populated with DMA (Designated Market Area) data.

    You can use this field to build rules that target traffic based on geographic market areas, enabling more granular location-based policies for your applications.

    Field details

    FieldTypeDescription
    ip.src.metro_codeString | nullThe metro code (DMA) of the incoming request's IP address. Returns the designated market area code for the client's location.

    Example filter expression:

    ip.src.metro_code eq "501"

    For more information, refer to the Fields reference.

  1. Magic WAN Connector now exports NetFlow data for breakout traffic to Magic Network Monitoring (MNM), providing visibility into traffic that bypasses Cloudflare's security filtering.

    This feature allows you to:

    • Monitor breakout traffic statistics in the Cloudflare dashboard.
    • View traffic patterns for applications configured to bypass Cloudflare.
    • Maintain visibility across all traffic passing through your Magic WAN Connector.

    For more information, refer to NetFlow statistics.

  1. Starting February 2, 2026, the cloudflared proxy-dns command will be removed from all new cloudflared releases.

    This change is being made to enhance security and address a potential vulnerability in an underlying DNS library. This vulnerability is specific to the proxy-dns command and does not affect any other cloudflared features, such as the core Cloudflare Tunnel service.

    The proxy-dns command, which runs a client-side DNS-over-HTTPS (DoH) proxy, has been an officially undocumented feature for several years. This functionality is fully and securely supported by our actively developed products.

    Versions of cloudflared released before this date will not be affected and will continue to operate. However, note that our official support policy for any cloudflared release is one year from its release date.

    Migration paths

    We strongly advise users of this undocumented feature to migrate to one of the following officially supported solutions before February 2, 2026, to continue benefiting from secure DNS-over-HTTPS.

    End-user devices

    The preferred method for enabling DNS-over-HTTPS on user devices is the Cloudflare WARP client. The WARP client automatically secures and proxies all DNS traffic from your device, integrating it with your organization's Zero Trust policies and posture checks.

    Servers, routers, and IoT devices

    For scenarios where installing a client on every device is not possible (such as servers, routers, or IoT devices), we recommend using the WARP Connector.

    Instead of running cloudflared proxy-dns on a machine, you can install the WARP Connector on a single Linux host within your private network. This connector will act as a gateway, securely routing all DNS and network traffic from your entire subnet to Cloudflare for filtering and logging.

  1. Magic WAN now supports Automatic Return Routing (ARR), allowing customers to configure Magic on-ramps (IPsec/GRE/CNI) to learn the return path for traffic flows without requiring static routes.

    Key benefits:

    • Route-less mode: Static or dynamic routes are optional when using ARR.
    • Overlapping IP space support: Traffic originating from customer sites can use overlapping private IP ranges.
    • Symmetric routing: Return traffic is guaranteed to use the same connection as the original on-ramp.

    This feature is currently in beta and requires the new Unified Routing mode (beta).

    For configuration details, refer to Configure Automatic Return Routing.

  1. Magic WAN Connector now allows you to designate a specific WAN port for breakout traffic, giving you deterministic control over the egress path for latency-sensitive applications.

    With this feature, you can:

    • Pin breakout traffic for specific applications to a preferred WAN port.
    • Ensure critical traffic (such as Zoom or Teams) always uses your fastest or most reliable connection.
    • Benefit from automatic failover to standard WAN port priority if the preferred port goes down.

    This is useful for organizations with multiple ISP uplinks who need predictable egress behavior for performance-sensitive traffic.

    For configuration details, refer to Designate WAN ports for breakout apps.

  1. Build rules based on TCP transport and latency

    Cloudflare now provides two new request fields in the Ruleset engine that let you make decisions based on whether a request used TCP and the measured TCP round-trip time between the client and Cloudflare. These fields help you understand protocol usage across your traffic and build policies that respond to network performance. For example, you can distinguish TCP from QUIC traffic or route high latency requests to alternative origins when needed.


    New fields

    FieldTypeDescription
    cf.edge.client_tcpBooleanIndicates whether the request used TCP. A value of true means the client connected using TCP instead of QUIC.
    cf.timings.client_tcp_rtt_msecNumberReports the smoothed TCP round-trip time between the client and Cloudflare in milliseconds. For example, a value of 20 indicates roughly twenty milliseconds of RTT.

    Example filter expression:

    cf.edge.client_tcp && cf.timings.client_tcp_rtt_msec < 100

    More information can be found in the Rules language fields reference.

  1. You can now route private traffic to Cloudflare Tunnel based on a hostname or domain, moving beyond the limitations of IP-based routing. This new capability is free for all Cloudflare One customers.

    Previously, Tunnel routes could only be defined by IP address or CIDR range. This created a challenge for modern applications with dynamic or ephemeral IP addresses, often forcing administrators to maintain complex and brittle IP lists.

    Hostname-based routing in Cloudflare Tunnel

    What’s new:

    • Hostname & Domain Routing: Create routes for individual hostnames (e.g., payroll.acme.local) or entire domains (e.g., *.acme.local) and direct their traffic to a specific Tunnel.
    • Simplified Zero Trust Policies: Build resilient policies in Cloudflare Access and Gateway using stable hostnames, making it dramatically easier to apply per-resource authorization for your private applications.
    • Precise Egress Control: Route traffic for public hostnames (e.g., bank.example.com) through a specific Tunnel to enforce a dedicated source IP, solving the IP allowlist problem for third-party services.
    • No More IP Lists: This feature makes the workaround of maintaining dynamic IP Lists for Tunnel connections obsolete.

    Get started in the Tunnels section of the Zero Trust dashboard with your first private hostname or public hostname route.

    Learn more in our blog post.