Yes, There were some upgrades in TruClient protocol as they have added descriptors where we can customize object identification. No need to use highlight objects while replaying if transaction failed.
Windows 10 was released just 2 weeks ago. While LoadRunner should be able to operate on Windows 10 some newer stuff, like recording Edge browser with hooking, is still not supported (recording with proxy works).
Scott, if you have already downloaded LoadRunner through the SaaS portal, simply go to your products page on the right hand menu, select that trial and download the new version. No need to start a new trial. Or you can visit https://saas.hp.com/download/loadrunner