Smith micro has sold poser to Bondware, Rendo's parent company and closed down their server which later versions of poser (poser2014, poser 11 and 11 pro) needed to contact at regular intervals to check the licence. The 11.2 update changes poser to now contact the Bondware server. As a bonus if you only had poser 11 standard you now have poser 11 pro.

Also did you notice on the page you downloaded the update from the link to additional content? This require you to enter your existing poser 11 serial number to get the content for free which includes the Hivewire figures (Dawn Dusk Luna and horse), extra clothing for LaFemme and much more.

Poser 10 shouldn't have been affected but maybe there was some "cross contamination" that once poser 11 was blocked this somehow affected poser 10