Flows are automated rules that pair conditions (such as file extension, URL path, or query parameter) with parameters. Set up a flow to automatically apply image optimization to matching requests on your zone without writing code or changing URLs.
There are two modes for transformation flows:
- Provider flows — Migrate from another image optimization service. Your existing URLs continue to work while Cloudflare rewrites provider-specific parameters to their Cloudflare equivalents. Currently, Cloudflare supports provider flows for Fastly Image Optimizer.
- Custom flows — Define your own conditions and actions for use cases like automatic format conversion, responsive sizing with
width=auto, or directory-based optimization.
To get started, go to Images > Transformations > Automation in the Cloudflare dashboard ↗.
Learn more about transformation flows.
Starting with
cloudflaredversion 2026.5.2 ↗, Cloudflare Tunnel automates the entire connectivity pre-checks workflow directly inside the binary. Previously, customers had to installdigandnetcatand run those commands by hand to verify their environment. Nowcloudflareddoes it natively at startup — and surfaces actionable remediation when something is blocked.
On every
cloudflared tunnel run(andcloudflared tunnel diag), the binary now natively checks:- DNS resolution —
region1.v2.argotunnel.comandregion2.v2.argotunnel.comresolve to valid Cloudflare IPs. - Transport connectivity — outbound
UDP (QUIC)andTCP (HTTP/2)on port7844. - Management API — outbound
TCP/443toapi.cloudflare.comfor software updates.
Results are printed in a scannable CLI table with three states:
- ✅ Pass — the check succeeded.
- ⚠️ Warn — a non-blocking issue, for example the Management API is unreachable so automatic updates will not work, but the tunnel will still come up.
- ❌ Fail — a blocking issue, with a specific remediation hint (for example,
Allow outbound UDP on port 7844).
If DNS is unresolvable, or both UDP and TCP fail on port 7844,
cloudflaredexits early with the failure rather than looping on opaquefailed to dialerrors.Pre-checks now run automatically on every start, which also catches regressions like overnight firewall policy changes — no need to remember to rerun the troubleshooting guide.
To get the new behavior, upgrade
cloudflaredto version2026.5.2or later. For more details, refer to the Connectivity pre-checks documentation.- DNS resolution —
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 ipandwarp-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 ipandwarp-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 ipandwarp-cli tunnel host. UI support will be added in a future release.
Cloudflare now returns a
BYPASScache status whenever a response is not cacheable, instead of the previous mix ofBYPASSandMISSthat depended on why Cloudflare chose not to cache the response.There are multiple reasons Cloudflare may refuse to cache a response — for example, the response exceeds the maximum cacheable file size for your plan, the origin sends
Cache-Control: no-cache,private, ormax-age=0, the response includes aSet-Cookieheader, or the request includes anAuthorizationheader.Previously, only some of these conditions returned
BYPASS. Others — such as responses exceeding the maximum cacheable file size — returnedMISSon every request, regardless of whether Origin Cache Control was on or off. Because the response could never be cached, every subsequent request also returnedMISS, which looked indistinguishable from a broken cache and made it hard to tell whether Cloudflare was trying and failing to cache the asset or had deliberately chosen not to cache it.BYPASSnow consistently signals that Cloudflare refused to cache the response, regardless of the reason.MISSis reserved for cacheable responses that simply were not in the local cache at request time.After this change rolls out, you should see:
- MISS rate decreases: Uncacheable responses no longer count as cache misses.
- BYPASS rate increases: These same responses are now reported as bypasses.
- Cache hit ratio increases: Hit ratio calculations no longer include uncacheable traffic that could never have been cached, giving you a more accurate view of cache effectiveness.
Your total request volume and origin traffic are unchanged — only the cache status label is different.
The cache status label is the only thing changing — browser cache TTL handling for any given response is identical to what it was before:
- Responses that historically returned
MISSbecause Cloudflare refused to cache them (for example, responses over the maximum cacheable file size) now returnBYPASS, but continue to have browser cache TTL applied — exactly as they did when they were labeledMISS. - Responses that historically returned
BYPASSand skipped browser cache TTL continue to skip browser cache TTL.
In both cases, the decision to apply browser cache TTL depends on the underlying reason Cloudflare did not cache the response, not on the new
BYPASSlabel.
Flagship is now in public beta. Evaluate feature flags directly from Cloudflare Workers with no outbound HTTP calls, using globally distributed flag configuration backed by Workers KV and Durable Objects. Flagship supports typed flag values, targeting rules, percentage rollouts, audit history, and OpenFeature-compatible SDKs.
Evaluate a flag from a Worker in a few lines of code:
src/index.js export default {async fetch(request, env) {const showNewCheckout = await env.FLAGS.getBooleanValue("new-checkout",false,);return new Response(showNewCheckout ? "New checkout" : "Standard checkout");},};src/index.ts export default {async fetch(request: Request, env: Env): Promise<Response> {const showNewCheckout = await env.FLAGS.getBooleanValue("new-checkout", false);return new Response(showNewCheckout ? "New checkout" : "Standard checkout",);},} satisfies ExportedHandler<Env>;Start creating flags from the Cloudflare dashboard today. Refer to the Flagship documentation to get started.
AI Gateway now uses the AI REST API on
api.cloudflare.com. You can call any model — whether from OpenAI, Anthropic, Google, or hosted on Workers AI — through one unified API, using the same endpoints and authentication regardless of provider. Four endpoints are available:POST /ai/run— universal endpoint for all models and modalitiesPOST /ai/v1/chat/completions— OpenAI SDK compatiblePOST /ai/v1/responses— OpenAI Responses API compatiblePOST /ai/v1/messages— Anthropic SDK compatible
Terminal window curl -X POST "https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/v1/chat/completions" \--header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \--header "Content-Type: application/json" \--data '{"model": "openai/gpt-5.5","messages": [{"role": "user", "content": "What is Cloudflare?"}]}'All AI Gateway features — logging, caching, rate limiting, and guardrails — are applied automatically. Third-party models are billed through Unified Billing, so you do not need to manage separate provider API keys.
Third-party model requests are routed through your account's default gateway, which is created automatically on first use. To route requests through a specific gateway, add the
cf-aig-gateway-idheader.If you are already calling Workers AI models through the existing REST API, that path (
/ai/run/@cf/{model}) continues to work. To call Workers AI models through AI Gateway, use the@cf/model prefix (for example,@cf/moonshotai/kimi-k2.6) and include thecf-aig-gateway-idheader to specify which gateway to route through.For more details and examples, refer to the REST API documentation.
The Billing Profile now has a modern UI and a single space that unifies billing information, payment method management and an enhanced subscriptions view under a single Subscriptions tab.
The Subscriptions tab brings billing information, payment method management, and your subscriptions together in one place. The payment management and Pay overdue balances flows now use the latest checkout as product purchase flows, so you can pay with Apple Pay, Google Pay, Link, and Instant Bank Payments via Link alongside cards and PayPal.
New cards complete 3D Secure authentication when the issuer requires it — for example, the EU under PSD2 and India under RBI.
For details, refer to the Billing Home documentation.
You can now scope Cloudflare permissions to individual Cloudflare Tunnel instances and Cloudflare Mesh nodes. Administrators can delegate access to specific Tunnels or Mesh nodes without granting account-wide control over private networking.
When you add a member or create a permission policy, the resource picker now lists Cloudflare Tunnel instances and Cloudflare Mesh nodes as scopable resource types. You can:
- Grant a read-only role on a single Cloudflare Tunnel instance to a support operator for log streaming and diagnostics — without exposing other Tunnels or destructive actions.
- Grant a write role on a specific Cloudflare Mesh node to an application team — without giving them access to the rest of your private network.
- Scope a single policy to one or many Tunnels and Mesh nodes at once.
Granular permissions are a parallel layer to existing account-level roles — they do not replace them.
- Existing account-level roles continue to work. A member with
Cloudflare AccessorCloudflare Zero Trustretains write access to every Tunnel and Mesh node in the account. This ensures backward compatibility for existing automation and tokens. - Granular permissions are additive. For any API request on a specific Tunnel or Mesh node, access is granted if the principal has either the account-level role or a granular permission for that resource.
- Resource enumeration is authorization-aware. Listing endpoints (
GET /accounts/{id}/cfd_tunnel,GET /accounts/{id}/warp_connector) return only the resources the principal has at least read access to.
- Configure granular permissions for Cloudflare Tunnel.
- Configure granular permissions for Cloudflare Tunnel and Cloudflare Mesh in Cloudflare One.
- Review the resource-scoped roles on the Cloudflare role reference.
You can now use VPC Network bindings with
network_id: "cf1:network"to reach your full private network from Workers, including:- Cloudflare Mesh nodes and client devices
- Subnet routes and hostname routes announced through Cloudflare Tunnel or Cloudflare Mesh
- Destinations connected through Cloudflare WAN on-ramps — GRE, IPsec, and CNI
This means a single VPC Network binding can route Worker requests to private services regardless of how those services are connected to Cloudflare: through a Cloudflare Tunnel from a cloud VPC, a Mesh node on a private subnet, or a Cloudflare WAN on-ramp from your data center or branch site.
JSONC {"vpc_networks": [{"binding": "PRIVATE_NETWORK","network_id": "cf1:network","remote": true,},],}TOML [[vpc_networks]]binding = "PRIVATE_NETWORK"network_id = "cf1:network"remote = trueAt runtime, the URL you pass to
fetch()determines the destination:JavaScript // Reach a service behind a Cloudflare WAN IPsec on-rampconst response = await env.PRIVATE_NETWORK.fetch("http://10.50.0.100:8080/api");For configuration options, refer to VPC Networks.
Starting today, everyone can opt in to a refreshed DNS records page in the Cloudflare dashboard. Over the coming weeks, the new experience will become the default for Free plan users first, followed by paid plans.
- Better table experience: resizable and hideable columns, row pinning, advanced filters with logical operators (AND/OR), configurable pagination, and expanded input fields so long values are no longer cut off.
- First-class mobile experience: responsive layout with a touch-friendly, card-based UI and compact controls for small screens.
- DNS quick reference: bite-sized explainers for DNS, proxy status, and TTL, available directly in the product to help users configure records without leaving the page.
- Modern frontend: a refactor onto Cloudflare's new UI framework that improves performance and lays the foundation for future improvements.
Dates are subject to change based on feedback received during the rollout.
- 20 May - 05 June: ramped rollout to Free, then Pro and Business plans.
- 08 June - 03 July: ramped rollout to Enterprise plans.
Once the new experience is turned on for your account, look for the feedback link at the top of the DNS records page in the Cloudflare dashboard and let us know what you think. Your input helps us prioritize the next round of improvements.
Radar now includes two new charts on the traffic page ↗ that provide deeper insights into the composition of HTTP traffic: a content type distribution chart and an API traffic share chart.
The new Content type ↗ chart displays the distribution of HTTP response content types, grouped into high-level categories. A traffic type selector allows filtering by human, bot, or all traffic. The existing Bot vs. Human ↗ chart also gained a content type category filter, allowing users to see the bot/human split for specific content categories.
Content type categories:
- HTML — Web pages (
text/html) - Images — All image formats (
image/*) - JSON — JSON data and API responses (
application/json,*+json) - JavaScript — Scripts (
application/javascript,text/javascript) - CSS — Stylesheets (
text/css) - Plain Text — Unformatted text (
text/plain) - Fonts — Web fonts (
font/*,application/font-*) - XML — XML documents and feeds (
text/xml,application/xml,application/rss+xml,application/atom+xml) - YAML — Configuration files (
text/yaml,application/yaml) - Video — Video content and streaming (
video/*,application/ogg,*mpegurl) - Audio — Audio content (
audio/*) - Markdown — Markdown documents (
text/markdown) - Documents — PDFs, Office documents, ePub, CSV (
application/pdf,application/msword,text/csv) - Binary — Executables, archives, WebAssembly (
application/octet-stream,application/zip,application/wasm) - Serialization — Binary API formats (
application/protobuf,application/grpc,application/msgpack) - Other — All other content types
The
CONTENT_TYPEdimension andcontentTypefilter are available on the HTTP summary, timeseries groups, and timeseries endpoints.The new API traffic ↗ chart shows the percentage of dynamic (non-cacheable) HTTP request traffic that is API-related. API traffic is identified by JSON or XML response content types (
application/json,application/xml,text/xml) on HTTP requests that returned a 200 status code. A traffic type selector allows switching between human traffic, bot traffic, or all traffic.
The
API_TRAFFICdimension is available on the existing HTTP summary and timeseries groups endpoints. AnapiTrafficfilter (APIorNON_API) can also be applied to HTTP timeseries requests to retrieve raw request counts for API-only or non-API traffic.Visit the Radar traffic page ↗ to explore these new charts.
- HTML — Web pages (
Key Findings
- Existing rule enhancements have been deployed to improve detection resilience against broad classes of web attacks and strengthen behavioral coverage.
Continuous Rule Improvements
We are continuously refining our managed rules to provide more resilient protection and deeper insights into attack patterns. To ensure an optimal security posture, we recommend consistently monitoring the Security Events dashboard and adjusting rule actions as these enhancements are deployed.
Ruleset Rule ID Legacy Rule ID Description Previous Action New Action Comments Cloudflare Managed Ruleset N/A Sitecore - Cache Poisoning - CVE:CVE-2025-53693 Beta N/A Block This rule is merged into the original rule "Sitecore - Cache Poisoning - CVE:CVE-2025-53693" (ID:
Cloudflare Access now supports using Cloudflare itself as an identity provider. If you publish an Access application and select Cloudflare as the login method, users can sign in with their existing Cloudflare account — no one-time PINs, no third-party IdP configuration, and no shared email inboxes. Authentication is backed by Cloudflare's own account security (including multi-factor authentication), making it both simpler to set up and more secure than OTP-based login for most use cases.
Cloudflare is now the default identity provider for all newly created Zero Trust accounts, replacing One-time PIN.
This also enables two new capabilities:
- Cloudflare Account Member selector — A new policy selector that matches users based on their membership in a Cloudflare account. You can target the current account or specify a different account ID for cross-account access scenarios.
- Restrict to account members — An identity provider configuration option that limits authentication to users who are members of your Cloudflare account.
To get started, add Cloudflare as an identity provider in your Zero Trust settings.
You can now receive event notifications for Artifacts repository changes and consume them from a Worker to build commit-driven automation.
This allows you to:
- Run custom workflows when a repository is created or imported
- Kick off a build and deploy a change when an agent pushes to a repo
- Trigger a review agent on every push
Available events include:
- Account-level events (
artifactssource) —repo.created,repo.deleted,repo.forked,repo.imported - Repository-level events (
artifacts.reposource) —pushed,cloned,fetched
To learn more, refer to Artifacts documentation.
Cloudflare CASB now integrates with the Claude Compliance API ↗. This enhancement gives security teams visibility into Claude usage patterns, admin activity, and compliance-relevant events across their organization.
The Claude Compliance API provides structured access to audit logs and administrative actions within Claude Enterprise and Claude Platform. Cloudflare CASB ingests this data to surface security findings that help organizations enhance their security posture and enforce AI governance.
Starting today, security teams can scan for security findings across the following assets:
- Public projects — Projects set to public visibility
- Project attachment — Files and documents added to projects that violate DLP policies
- Chat files — User-uploaded and provider-generated files that violate DLP policies
- Chat messages — User prompts and provider responses that violate DLP policies
- Artifacts — Provider-generated documents and files that violate DLP policies
This integration is available to all Cloudflare One customers. New Cloudflare customers can sign up and start with their first two integrations for free. Existing customers can enable the integration directly in the dashboard. The integration begins scanning immediately and surfaces findings in the dashboard within minutes.
Radar now includes an MRT Explorer ↗ tool in the Routing section. Route collectors like RIPE RIS and RouteViews publish MRT (Multi-Threaded Routing Toolkit) dump files containing BGP announcements, withdrawals, and route attributes. The new tool parses these files entirely in the browser — nothing gets uploaded.
Paste a URL to fetch an MRT file remotely, drag and drop one onto the page, or browse for a local file. Gzip and bzip2 compressed files are supported. A sample file is also available to get started right away.
Once parsed, the tool lists every BGP event with its timestamp, prefix, AS path, OTC (Only to Customer), and community attributes.
Clicking on the "View details" action opens a modal with additional properties and the full event JSON.
When loading a file by URL, the query string captures the source so the link can be shared directly — the recipient's browser immediately fetches and parses the same file.
Try the MRT Explorer on Cloudflare Radar ↗.
You can now manage Artifacts namespaces, repos, and repo-scoped tokens directly from Wrangler CLI.
Available commands:
wrangler artifacts namespaces list— List Artifacts namespaces in your account.wrangler artifacts namespaces get— Get metadata for a namespace.wrangler artifacts repos create— Create a repo in a namespace.wrangler artifacts repos list— List repos in a namespace.wrangler artifacts repos get— Get metadata for a repo.wrangler artifacts repos delete— Delete a repo.wrangler artifacts repos issue-token— Issue a repo-scoped token for Git access.
To get started, refer to the Wrangler Artifacts commands documentation.
Network Analytics is now fully supported for accounts using Unified Routing mode. Traffic that traverses Unified Routing onramps and offramps is now visible in Network Analytics with the same dimensions and filters as traffic on the standard data plane.
This closes a parity gap for customers who had moved tunnels onto Unified Routing and lost visibility into their dataplane traffic in the Network Analytics dashboard. No configuration change is required — analytics data is collected automatically for all accounts with Unified Routing enabled.
For the remaining beta limitations, refer to Traffic steering beta limitations.
You can now share local dev sessions through Cloudflare Tunnel and get a public URL when using either Wrangler or the Cloudflare Vite plugin. This is useful when you need to share a preview, test a webhook, or access your app from another device.
This lets you either:
- start a temporary Quick tunnel with a random
*.trycloudflare.comhostname, or - use an existing named tunnel for a stable hostname and to restrict access with Cloudflare Access.
To start a tunnel, press
tin Wrangler ort + Enterin Vite while your dev server is running. For details on setting up a named tunnel, refer to Share a local dev server.- start a temporary Quick tunnel with a random
R2 SQL is Cloudflare's serverless, distributed SQL engine for querying Apache Iceberg ↗ tables stored in R2 Data Catalog. R2 SQL runs directly on Cloudflare's global network with no infrastructure to manage, so you can analyze data in R2 without exporting it to an external warehouse.
R2 SQL now supports joining multiple Iceberg tables in a single query. You can combine tables with JOINs, filter with subqueries, and define multi-table CTEs to build complex analytical queries.
- JOINs —
INNER JOIN,LEFT JOIN,RIGHT JOIN,FULL OUTER JOIN,CROSS JOIN, and implicit joins (comma-separatedFROMwith conditions inWHERE) - Subqueries —
IN/NOT IN,EXISTS/NOT EXISTS, scalar subqueries inSELECT/WHERE/HAVING, and derived tables (subqueries inFROM) - Multi-table CTEs —
WITHclauses can reference different tables and include JOINs - Self-joins — join a table with itself using different aliases
- Multi-way joins — join three or more tables in a single query
SELECT z.domain, z.plan, COUNT(*) AS request_countFROM my_namespace.zones zINNER JOIN my_namespace.http_requests h ON z.zone_id = h.zone_idWHERE z.plan = 'enterprise'GROUP BY z.domain, z.planORDER BY request_count DESCLIMIT 20SELECT z.domain, z.planFROM my_namespace.zones zWHERE EXISTS (SELECT 1 FROM my_namespace.firewall_events fWHERE f.zone_id = z.zone_id AND f.action = 'block')ORDER BY z.domainLIMIT 20WITH top_zones AS (SELECT zone_id, COUNT(*) AS req_countFROM my_namespace.http_requestsGROUP BY zone_idORDER BY req_count DESCLIMIT 50),zone_threats AS (SELECT zone_id, COUNT(*) AS threat_countFROM my_namespace.firewall_eventsWHERE risk_score > 0.5GROUP BY zone_id)SELECT tz.zone_id, tz.req_count, COALESCE(zt.threat_count, 0) AS threat_countFROM top_zones tzLEFT JOIN zone_threats zt ON tz.zone_id = zt.zone_idORDER BY tz.req_count DESCLIMIT 20For the full syntax reference, refer to the SQL reference. For performance guidance with joins, refer to Limitations and best practices.
- JOINs —
This emergency release introduces two new rules to detect nginx heap buffer overflow and heap spray exploitation attempts targeting the rewrite module's
is_argsstale-state bug (CVE-2026-42945).Key Findings
CVE-2026-42945: nginx Heap Buffer Overflow via Stale
is_argsin Rewrite ModuleSuccessful exploitation allows remote attackers to trigger a heap buffer overflow in nginx's rewrite module by sending crafted URIs containing escapable characters. A length/copy pass mismatch in
ngx_http_script_copy_capture_code()causes the copy pass to write escaped data into an undersized buffer, leading to heap corruption. This enables denial of service (worker process crash) and, with heap feng shui techniques, potential remote code execution.We strongly recommend upgrading to nginx 1.30.1 (or later) immediately to address the underlying vulnerability. If you cannot upgrade immediately, avoid
rewritedirectives with?in the replacement string followed bysetorifreferencing capture groups.Ruleset Rule ID Legacy Rule ID Description Previous Action New Action Comments Cloudflare Managed Ruleset N/A nginx - Remote Code Execution - Buffer Overread - CVE:CVE-2026-42945 N/A Block This is a new detection.
Cloudflare Managed Ruleset N/A nginx - Remote Code Execution - Heap Spray - CVE:CVE-2026-42945 N/A Block This is a new detection.
In your Worker's dashboard, there is now a dedicated Domains tab where you can purchase a new domain through Cloudflare Registrar and have it automatically connected, add an existing domain, and manage all of your Worker's routing in one place.
You can also enable or disable your
workers.devsubdomain and Preview URLs, put them behind Cloudflare Access to require sign-in, and jump directly to analytics or domain overview for any connected domain.To get started, go to Workers & Pages, select a Worker, and open the Domains tab.
Go to Workers & Pages
The latest release of the Agents SDK ↗ brings more reliable chat recovery, fixes Agent state synchronization during reconnects, adds durable submissions for Think, exposes routing retry configuration, and adds connection control for Voice agents.
@cloudflare/ai-chatnow keeps server turns running when a browser or client stream is interrupted. This is useful for long-running AI responses where users refresh the page, close a tab, or temporarily lose connection. Callingstop()still cancels the server turn.Set
cancelOnClientAbort: trueif browser or client aborts should also cancel the server turn:JavaScript const chat = useAgentChat({agent: "assistant",name: "user-123",cancelOnClientAbort: true,});TypeScript const chat = useAgentChat({agent: "assistant",name: "user-123",cancelOnClientAbort: true,});Notable bug fixes:
- Chat stream resume negotiation no longer throws when replay races with a closed WebSocket connection.
- Recovered chat continuations no longer leave
useAgentChatstuck in a streaming state when the original socket disconnects before a terminal response. - Approval auto-continuation preserves reasoning parts and persists continuation reasoning in the final message.
isServerStreamingnow resets correctly when a resumed stream moves from the fallback observer path to a transport-owned stream.
agents@0.12.4prevents duplicate initial state frames during WebSocket connection setup. This avoids stale initial state messages overwriting state updates already sent by the client.Agent recovery is also more reliable when tool calls span a Durable Object restart. Recovery now defers user finish hooks until after agent startup and isolates hook failures, so one failed hook does not block other recovered runs from finalizing.
getAgentByName()now supportsroutingRetryfor transient Durable Object routing failures:JavaScript import { getAgentByName } from "agents";const agent = await getAgentByName(env.AssistantAgent, "user-123", {routingRetry: {maxAttempts: 3,},});TypeScript import { getAgentByName } from "agents";const agent = await getAgentByName(env.AssistantAgent, "user-123", {routingRetry: {maxAttempts: 3,},});@cloudflare/thinknow supports durable programmatic submissions.submitMessages()provides durable acceptance, idempotent retries, status inspection, cancellation, and cleanup for server-driven turns that should continue after the caller returns.Think.chat()RPC turns now run inside chat recovery fibers and persist their stream chunks. Interrupted sub-agent turns can recover partial output instead of starting over.ChatOptions.toolshas been removed from the TypeScript API. Define durable tools on the child agent or use agent tools for orchestration. Runtimeoptions.toolsvalues passed by legacy callers are ignored with a warning.@cloudflare/thinkno longer appliespruneMessages({ toolCalls: "before-last-2-messages" })to model context by default. The previous default could strip client-side tool results from longer multi-turn flows.truncateOlderMessagesstill runs as before, so context cost remains bounded. Subclasses that relied on the old aggressive pruning can opt back in frombeforeTurn:JavaScript import { Think } from "@cloudflare/think";import { pruneMessages } from "ai";export class MyAgent extends Think {beforeTurn(ctx) {return {messages: pruneMessages({messages: ctx.messages,toolCalls: "before-last-2-messages",}),};}}TypeScript import { Think } from "@cloudflare/think";import { pruneMessages } from "ai";export class MyAgent extends Think<Env> {beforeTurn(ctx) {return {messages: pruneMessages({messages: ctx.messages,toolCalls: "before-last-2-messages",}),};}}@cloudflare/voiceadds anenabledoption touseVoiceAgent. React apps can now delay creating and connecting aVoiceClientuntil prerequisites such as capability tokens are ready.JavaScript const voice = useVoiceAgent({agent: "MyVoiceAgent",enabled: Boolean(token),});TypeScript const voice = useVoiceAgent({agent: "MyVoiceAgent",enabled: Boolean(token),});This release also fixes Workers AI speech-to-text session edge cases and
withVoicetext streaming from AI SDKtextStreamresponses.- Streamable HTTP routing — Server-to-client requests now route through the originating POST stream when no standalone SSE stream is available.
- Structured tool output — Tool output shapes are preserved when truncating older messages or oversized persisted rows.
- Non-chat Think tool steps — Think agent-tool children can complete without emitting assistant text and can return structured output through
getAgentToolOutput. - Sub-agent schedules — Stale sub-agent schedule rows are pruned when their owning facet registry entry no longer exists.
@cloudflare/codemode— Adds a browser-safe export with an iframe sandbox executor and resolves OpenAPI specs inside the sandbox to avoid Worker Loader RPC size limits.
To update to the latest version:
Terminal window npm i agents@latest @cloudflare/ai-chat@latest @cloudflare/think@latest @cloudflare/voice@latestRefer to the Agents API reference and Chat agents documentation for more information.