LTS (Long Term Supported), does not mean those that are running Ultimate Edition 3.4.X have to suffer as Ultimate Edition 4.2.1 for example advances. I have now incorporated code into TheeMahn O/S Builder (tmosb) 1.8.9 to upgrade existing Operating Systems. The screenie below is very large due to dual monitors higher then HD, thank you multi-monitor application for setting it up for me.

In case you can not figure what is going on or cant see the large photo, I am upgrading Ultimate Edition 3.4.1 to what will be Ultimate Edition 3.4.3 using:
tmosb --upgrade ultimate-edition-3.4.1-lite-x64.iso
uecorebuilder 3.4.3 lite
I will eventually push into one command:
tmosb --upgrade ultimate-edition-3.4.1-lite-x64.iso 3.4.3
Did you know it took me over an hour to install Ultimate Edition 3.4.1 because of mediabuntu repos being non-existant? KeySnatcher has automatically rectified that situation as it is upgrading the distro.

When all the tools I have written (pages still to write in previous link) come together, they will sing in harmony of a perfect Operating System as well as Operating System constructor. I am currently sorry tmosb 1.8.9 is not available to the public until I see solid release, after solid release; built with the tool.

On a lighter note, I have seen people building Operating Systems using the same tool, however using as the base for example running Ultimate Edition 4.2, building Ultimate Edition 4.3. I will formulate the tool to not care what Operating System you are running and just provide exactly what you want. I built Ultimate Edition 4.4 (Ubuntu Utopic Unicorn 14.10 based) with 5 additional DE (desktop environments) 2 or 3 days ago and very sucessfully I may add; it is just a matter of time.