Update 5 does not change your licensing structure. If you experience license errors after the update, open the Automation License Manager (ALM) , select your drive, and run a check on your existing V11 licenses to re-validate them.
If you cannot click the download link on the Siemens website, your account has not yet passed the automated or manual export control checks. Tia Portal V11 Sp2 Update 5 Download
What does this mean for you?