Hi there,
just to report something interesting...
if I log in my account and click for upgrades, I can see:
"Movie Studio 13 Platinum updated on Mar. 5, 2014"
Mmmh... 5th March... looks quite recent... !!!
But the download option still refer to the version 13.0, build 879, 64-bit, which is the one I have installed when I bought the SW in January...
And in fact the release notes (links below the download options) still refer to January... even though the release notes are displayed for the 32-bit version only (build 878).
The download .exe file is exactly the same as the one I used for the installation in January.
So, what is the 5th March version about ????
Probably just a lack of precision from Sony...