The flagship business phone of Nokia have just received a minor software upgrade. The update is not that big and it only eats about 900KB of your memory but it considered as a core update for your Nokia E7. Making the overall performance of the device faster and lesser software issues.
Based on the rumours on the web, we might get the PR 2.0 in the following months and it is expected to be a big software update for Symbian^3 devices.
On how to update your Nokia E7, you could checkout through the software updater app in your phone or through NSU and OTA.