In case there was any doubt in which build was the RTM, Microsoft today released Windows 10 build 14393.5 for both PC and Mobile to the Slow and Release Preview rings of the Insider Preview.
He was wrong announcing it and has corrected/edited the post. The CU for .31 is not released to any ring
Appreciated. If for sure it doesn't show (normal education) I will install it as I got free license through my school!
No, that watermark is set to be permanently displayed, also for activated installations. It's governed by the "shell32-license-ShowProductNameOnDesktop" licensing value. Haven't checked it on RS1 myself, but I don't think it has changed.
What does it means to "Windows is activated with a digital license linked to your Microsoft Account"?
I have always a progress bar with DISM (capture image, apply image, install a feature), you don't have it before RS1 ??