Anyone else excited with 4.5 Update?

Development Cinematics & Media
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54

Its greyed out on my PC.

CannotRename_zpse898f55b.jpg
CannotRename_zpse898f55b.jpg515×596 49.9 KB

Its also a known problem as evidence :
questions/95408/mac-editor-cant-rename-folders-in-content-browser.html

I guess its affecting some PCs & MACs, but not all.