Hi I have been a parallels user since v5 or so and use it infrequently. I upgrade intermittently and moved to 10 earlier this year. I noticed v11 highlights the Win 10 support and went to upgrade and found out that I am now limited to 8gb of Ram in my Macbook Pro if I do this unless I upgrade to Pro. I went to do this before realising it is now on an annual subscription. I am definitely not signing up to a subscription model for Parallels due to the infrequent use and also think its far too expensive when rivals offer the same performance or better for fixed one off cost. I need 16Gb Ram as I when Parallels is used it is for either for Video Editing/Transcoding onsite or for 3D VR testing. I need to upgrade to Yosemite and Win 10 to run a few bits of software and get rid of the awful Win 8.1 and wonder if this all runs fine on Parallels 10 for the interim or if I just need to move to a rival product today? As mentioned, I am not being forced to move to a subscription model.
You're right, 10 version of Windows works with Parallels Desktop 10. Also few days ago we have released new minor update of Parallels Desktop 10. You may check the details here