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  2. ›Cloudflare
  3. ›Durable Objects
  4. ›Update

Feature•Aug 28, 2026

Durable Objects can use up to ten Dynamic Workers concurrently

Durable ObjectsCloudflare · Developer platform

Durable Objects can have up to ten distinct Dynamic Workers with in-flight requests, increased from four. This limit applies across all concurrent requests to the same Durable Object because they share an input/output (I/O) context. Other Workers can have up to four distinct Dynamic Workers with in-flight requests per request.

Multiple in-flight requests to the same Dynamic Worker count as one toward this limit.

For more information, refer to Dynamic Workers limits.

Read the original announcement↗

More from Durable Objects

All Durable Objects updates →
  1. Pending I/O operations allow Durable Objects to continue long-running work without a connected client

    Durable Objects remain active while handling a request from a connected client. This change applies when no client is connected, such as when an agent continues a submitted job after its client disconnects.

    Durable Objects•Feature•Oct 1, 2026
  2. Durable Object name search now supports 128 characters

    Durable Object name searches in the Cloudflare dashboard now accept up to 128 characters, up from 20.

    Durable Objects•Feature•Sep 23, 2026
  3. Workers traces now automatically include JavaScript RPC session spans

    Workers traces can now follow JavaScript RPC calls across Worker boundaries and into Durable Objects. Previously, a trace stopped at the caller's RPC boundary.

    Durable Objects•Feature•Sep 17, 2026
  4. Prevent Durable Object alarm retries when using `ctx.abort()`

    By default, an alarm interrupted by ctx.abort() retries after the Durable Object resets. Pass { retryAlarm: false } when the alarm should stop instead:

    Durable Objects•Feature•Aug 25, 2026
  5. View deployments for Durable Objects in the dashboard

    Durable Object namespaces now have a Deployments tab in the Cloudflare dashboard, showing the versions of the backing Worker that are currently live and the traffic split between them.

    Durable Objects•Feature•Aug 20, 2026