Today I downloaded a new update MEP Pro to 188.8.131.52 (I'm in the UK if that makes a difference). I've not really played with it yet to check the differences but initially I have 2 concerns, 1 minor and 1 I consider major.
Minor concern - when it loads it displays a screen asking if I want to create a new project or load an existing project. There seems to be no way to prevent this happening; it ALWAYS loads.
Major concern - on my system this new version WILL NOT LOAD a backup project (.MV_) from the previous version (184.108.40.206). I personally feel this to be a major inconvenience, so please be aware of this if you need to revert a project you've already started. It seems to be OK loading backups created in the new version.
Not sure yet about New Blues and other known 17.0.1 problems, I'll try them later.