---
title: Advanced WAF customization for AI Crawl Control blocks
description: You can now extend the AI Crawl Control WAF rule with custom user agents, path-based exceptions, and additional expression clauses without affecting your AI Crawl Control settings.
image: https://developers.cloudflare.com/changelog-preview.png
---

[Skip to content](#%5Ftop) 

# Changelog

New updates and improvements at Cloudflare.

[ Subscribe to RSS ](https://developers.cloudflare.com/changelog/rss/index.xml) [ View RSS feeds ](https://developers.cloudflare.com/fundamentals/new-features/available-rss-feeds/) 

![hero image](https://developers.cloudflare.com/_astro/hero.CVYJHPAd_26AMqX.svg) 

[ ← Back to all posts ](https://developers.cloudflare.com/changelog/) 

## Advanced WAF customization for AI Crawl Control blocks

Mar 24, 2026 

[ AI Crawl Control ](https://developers.cloudflare.com/ai-crawl-control/) 

AI Crawl Control now supports extending the underlying WAF rule with custom modifications. Any changes you make directly in the WAF custom rules editor — such as adding path-based exceptions, extra user agents, or additional expression clauses — are preserved when you update crawler actions in AI Crawl Control.

If the WAF rule expression has been modified in a way AI Crawl Control cannot parse, a warning banner appears on the **Crawlers** page with a link to view the rule directly in WAF.

For more information, refer to [WAF rule management](https://developers.cloudflare.com/ai-crawl-control/features/manage-ai-crawlers/#waf-rule-management).