How to upgrade xubuntu to xfce 4.12 without crashing my system?

I use to use Lubuntu 14.10 and added 4.10 xfce. I saw xubuntu has 14.10 version, so I am now using Xubuntu. It is working very well.

http://www.xfce.org/download

Every way I tried either didn't work or caused my system to crash.

I guess I need step by step instructions if someone wouldn't mine doing that or point me to a website.

I really never done a source install. I did compile firefox or I should say the computer complied a nightly version of firefox

Thank You for your help in advance.

Never Mind, I found the web site. It requires to many dependencies. I can't find all of them or it installs an old version. Is there a ubuntu package that would download all the development tools and dependencies? I could try it again. Thank You again for your help.






Mod, I am sorry sometimes I just get frustrated with computers.