What is the differences between Dreamweaver_14_LS20.dmg and Dreamweaver_13_LS20.dmg?

I find that there are two versions of Dreamweaver CC for Mac OSX, one is Dreamweaver_14_LS20 and another is Dreamweaver_13_LS20. Can anyone tell me what is the exactly differences between these two versions.

By the way, Where can I download the full installer of Adobe Software on the official web? I only find the CreativeCloudInstall which will download the others later.