Why download management packs manually instead of from the catalog

When updating OpsMgr management packs the easiest way to do this is to show “Updates available for Installed Management Packs” in the console.

When doing this only the existing imported MP’s are updated.
If the MP is updated with new additional monitoring features it will not show up as needing an update. So if you use the console you will miss new ones.
Because of this I do not recommend using the console update feature but download the MSI from the catalog on the web at http://systemcenter.pinpoint.microsoft.com and extract them, if not you will end up missing MP’s you need.