Just a heads-up in case that you still have SharePoint environments running on SharePoint 2010:
Mainstream support for SharePoint 2010 will end on October 13th, 2015:
After this date only security fixes will be provided for SharePoint 2010. That means if you are running into an issue after October 13th which is caused by a problem in SharePoint 2010 and which has not already been addressed before you will no longer be able to request a hotfix.
Not the best situation if you are using SharePoint 2010 as a business critical application.
There are still three months till deadline - enough time to evaluate SharePoint 2013 and consider an upgrade.