How to update Dolphin?!

[gore]

I have been at code.google, and there some Dev told me that its not recommanded to extract new .7z on old version of dolphin.

But Dolphin dosn't have any Install.exe or Update from Menu feature, so how should I update it ? by extracting and replacing only dolphin.exe file?

[Maverick Hunter X]

Delete the old folder and replace with the new one, simple as that.
Be sure to backup any saves before the procedure from .\User\GC or .\User\Wii\title