---
title: 2022-04-12
description: HTTP DDoS managed ruleset rule changes for this release.
image: https://developers.cloudflare.com/core-services-preview.png
---

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# 2022-04-12

| Rule ID     | Description                                                          | Previous Action | New Action         | Notes                                                              |
| ----------- | -------------------------------------------------------------------- | --------------- | ------------------ | ------------------------------------------------------------------ |
| ...61b90333 | HTTP requests with unusual HTTP headers or URI path (signature #15). | N/A             | managed\_challenge | This rule is detecting floods of requests impersonating a browser. |
| ...81b13394 | HTTP requests with unusual HTTP headers or URI path (signature #2).  | block           | block              | Updated the filter to detect attacks more easily                   |

```json
{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/ddos-protection/","name":"DDoS Protection"}},{"@type":"ListItem","position":3,"item":{"@id":"/ddos-protection/change-log/","name":"Changelog"}},{"@type":"ListItem","position":4,"item":{"@id":"/ddos-protection/change-log/http/","name":"HTTP DDoS managed ruleset"}},{"@type":"ListItem","position":5,"item":{"@id":"/ddos-protection/change-log/http/2022-04-12/","name":"2022-04-12"}}]}
```