The focus of Autodesk Navisworks 2015 Service Pack 3 is the resolution of Revit interoperability issues. Service Pack 3 does resolve issues identified in other parts of the product, we recommend you refer to the supporting documentation for the detail.
Download Navisworks 2015 SP3
Autodesk_Navisworks_2015_Service_Pack_3_Multilingual_Freedom_64bit.msp (msp – 202.29Mb)
Autodesk_Navisworks_2015_Service_Pack_3_Multilingual_Manage_64bit.msp (msp – 269.44Mb)
Autodesk_Navisworks_2015_Service_Pack_3_Multilingual_Simulate_64bit.msp (msp – 269.45Mb)
Readme
Navisworks 2015 Features (English)
Navisworks 2015 Installation (English)
via
http://knowledge.autodesk.com/support/navisworks-products/downloads/caas/downloads/content/autodesk-navisworks-2015-service-pack-3.html
EDIT: Subtle change – dragged window selections and markup are now filled blue in colour
Remember to update your exporter if necessary:
2015: NavisworksExporters2015.exe