Off hand, I can't recall any new transitions between Vegas Pro 10 and 14.
Red Giant used to have some free transitions with their free 'Universe' product, but I don't think that the free version is available any more. But check out http://www.redgiant.com/universe/universe-tools/ for their paid subscription version.
Paid transitions compatible with Vegas Pro other than Universe:
But be sure to check out host NLE compatibility before buying. For example, you almost certainly won't have compatibility if you are using VP10 32 bit rather than the 64 bit version.