Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Prism.js language definition for iRules (TMOS v21.0)

Code is community submitted, community supported, and recognized as ‘Use At Your Own Risk’. Short Description The provided iRule language definition can be used to highlight iRule code within web...
Highlight-Example.png
Updated Mar 03, 2026
Version 3.0
application delivery
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My name is Kai Wilke and I'm working as a Principal Consultant for IT-Security at itacs GmbH - a German consulting company specialized in Microsoft Security cloud solutions, F5 customizations as well as for classic IT-Consulting. You can find additional information about me and my work here: https://devcentral.f5.com/articles/q-a-with-itacs-gmbhs-kai-wilke-devcentrals-featured-member-for-february-24890
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Kai_Wilke
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Mar 03, 2026

Updated the language definition to include new TMOS 21.0 iRule commands.