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  4. ›Update

Feature•Apr 15, 2026

Increased concurrency, creation rate, and queued instance limits for Workflows instances

WorkersCloudflare · Developer platform

Workflows limits have been raised to the following:

Limit · Previous · New

Concurrent instances (running in parallel) · 10,000 · 50,000

Instance creation rate (per account) · 100/second per account · 300/second per account, 100/second per workflow

Queued instances per Workflow 1 · 1 million · 2 million

These increases apply to all users on the Workers Paid plan. Refer to the Workflows limits documentation for more details.

Footnotes

  1. Queued instances are instances that have been created or awoken and are waiting for a concurrency slot. ↩

Read the original announcement↗

More from Workers

All Workers updates →

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    Workers•Feature•Oct 13, 2026

  2. Cloudflare API MCP server sends Workers Issues as MCP Events

    Workers Issues provides built-in error monitoring for Cloudflare Workers. It detects production failures and groups related failures into issues without an SDK or application wrapper.

    Workers•Feature•Oct 13, 2026

  3. Workers Builds now posts preview URLs in seconds

    Workers Builds now consistently posts preview URLs to GitHub pull requests and GitLab merge requests within a few seconds of a build completing, so you can start testing and reviewing your changes sooner. Previously, posting preview URLs could often take minutes.

    Workers•Preview•Oct 12, 2026

  4. More time for requests to finish during Workers runtime updates

    Pending requests and connections to Workers now have a grace period of up to 20 minutes during Workers runtime updates. Previously, the grace period was up to 30 seconds.

    Workers•Feature•Oct 12, 2026

  5. Run OpenCode 2.0 on Cloudflare with the Agents SDK

    The Agents SDK now supports OpenCode 2.0 through the experimental OpenCodeHarness. Run OpenCode inside a plain Durable Object, with sessions stored in SQLite and Lifecycle jobs that wake interrupted work after eviction.

    Workers•Feature•Oct 12, 2026