Dolphin 4.0.2

[Shonumi]

Well, I'm more familiar with Linux than anything (in which case, git checkout and compile/install if necessary) but on Windows, looks for a commandline program that can download files via a URL. If you wanted to get fancy, just have it download the first link on the download page (which will be 64-bit Windows builds and always the latest), then extract that with with another program and copy+paste that somewhere, possibly deleting the old folder too. Yeah that's pretty vague, but that's because I'm not a Windows kinda guy and there are many ways to achieve the same result.