Good news! But that doesn’t mean the upgrade will be completely smooth sailing, as there are interactions with drivers and changes in file permissions that can still cause a few hiccups. Officially, “the latest versions of all Creative Cloud applications are compatible with Windows 10” and they have “found no significant issues with running Creative Cloud products with Windows 10.” (This includes the perpetual license for Lightroom 6 too.) As a Mac user, I haven’t been watching the wider picture too carefully, but I can give you an update on the known issues that could affect your Lightroom use. Windows 10 has been available for a few weeks now, but the more cautious among us like to wait to see which bugs are likely to cause trouble.