---
title: "Cloudflare Workers Builds posts preview URLs faster: 2026-10-12 | Harbyn"
description: "Cloudflare Workers Builds posts preview URLs faster, announced Oct 12, 2026."
canonical: "https://harbyn.com/changes/cloudflare/2026-10-12-workers-workers-builds-now-posts-preview-urls-in-seconds"
last-updated: 2026-10-12
---

# Cloudflare Workers Builds posts preview URLs faster

Markdown version of <https://harbyn.com/changes/cloudflare/2026-10-12-workers-workers-builds-now-posts-preview-urls-in-seconds>.

Behavior change - Cloudflare. low severity. In effect.

Workers Builds now consistently posts preview URLs to GitHub pull requests and GitLab merge requests within a few seconds of build completion, instead of often taking minutes.

## Facts

| Fact | Value |
| --- | --- |
| Vendor | [Cloudflare](https://harbyn.com/vendors/cloudflare.md) |
| Kind | Behavior change |
| Severity | low |
| Status | In effect |
| Announced | Oct 12, 2026 |
| Added to Harbyn | Oct 12, 2026 |
| Lead time | No dated deadline |
| Vendor page | <https://developers.cloudflare.com/changelog/post/2026-10-12-faster-pull-request-comments/> |
| Review | Reviewed by a person, extracted by a model |

## Find it in your code

```sh
npx harbyn scan
```

This change names no identifier the scanner can match line by line, so the scan tells you whether your repository uses Cloudflare, from its packages and API hosts. Nothing leaves your machine.

## Sources

Where this event comes from: the page we read, when we read it, and the hash of that snapshot.

- <https://developers.cloudflare.com/changelog/rss/workers.xml> (changelog, fetched 2026-10-12 21:19 UTC, sha256 `17c3396853c9c73f1afc4164170912b8acfff6b35d732756031ae1f6f73ef912`)

## Related changes

### More from Cloudflare

- [Workers requests and connections get a longer grace period during runtime updates](https://harbyn.com/changes/cloudflare/2026-10-12-workers-more-time-for-requests-to-finish-during-workers-runtime-updates.md) (Behavior change, announced Oct 12, 2026)
- [Workers Builds updates default runtime and tool versions](https://harbyn.com/changes/cloudflare/2026-10-14-workers-workers-builds-now-uses-newer-versions-of-node-js-python-go-bun-and-more.md) (Behavior change, announced Oct 14, 2026)
- [Clef returns decisions up to 2x faster on Workers AI](https://harbyn.com/changes/cloudflare/2026-10-09-workers-ai-clef-omni-adds-audio-and-video-input-clef-flash-is-now-cheaper-an-2.md) (Behavior change, announced Oct 9, 2026)
- [Clef-flash hosted context window cut to 24K tokens](https://harbyn.com/changes/cloudflare/2026-10-09-workers-ai-clef-omni-adds-audio-and-video-input-clef-flash-is-now-cheaper-an-3.md) (Breaking change, announced Oct 9, 2026)

### Changes at other vendors

- [Amazon Selling Partner API: ORDER\_CHANGE notifications add PreFulfillmentStatusChange for Amazon Autos](https://harbyn.com/changes/amazon-sp-api/2026-10-14-sp-api-updates-new-listings-items-api-ivp-values-in-eu5-jp-and-ca-stores-oct-3.md) (effective Oct 28, 2026)
- [BigCommerce: 301 redirects will apply only to storefront channels](https://harbyn.com/changes/bigcommerce/2026-10-07-301-redirects-now-apply-to-storefront-channels-only.md) (effective Nov 10, 2026)
- [GitHub: Secret scanning audit log business field changes to enterprise slug](https://harbyn.com/changes/github/2026-10-20-updates-to-github-secret-scanning-7.md) (effective Nov 12, 2026)
- [Jira / Atlassian Cloud: New IP address ranges in use from January 1, 2027](https://harbyn.com/changes/atlassian-jira/2026-10-16-atlassian-cloud-adds-new-ip-address-ranges.md) (effective Jan 1, 2027)

[All upcoming deadlines](https://harbyn.com/deadlines.md)