how to clear cache version 3.0.6 PROFESSIONAL

The KB gives me info for the 4.x and not 3.0.6, can't seem to find anything in the forums. so I made a change to addon directories suggested in this post by another user [url=“Add Google Structured Data (formerly Rich Snippets) to your product pages - Hints & Modifications - CS-Cart Community Forums”]Add Google Structured Data (formerly Rich Snippets) to your product pages - Hints & Modifications - CS-Cart Community Forums

thanks

chris

Which page in the KB were you looking at? All the ones I've seen that cover more than one version have a tab to select the version.