Published onAugust 14, 2025Understanding the Changes from IAB Content Taxonomy 3.0 to 3.1IAB-Content-Taxonomy-changesIAB-Content-Taxonomy-3.1IAB-Content-Taxonomy-3.0-vs-3.1IAB-Taxonomy-updateAdTechAudience-TargetingContent-MappingDiscover the key changes from IAB Content Taxonomy 3.0 to 3.1. Our analysis details new categories, parent ID fixes, and name updates to help you keep your ad tech systems current.