What am I supposed to do here?

[SuperTaz]

Ok. It says on my AdminCP that I have out-of-date custom templates found. There are only three issues found. What do I do with the code in each version? What colors am I able to alter without messing anything up. Or do I just revert? Look at the picture below. Tell me how to set this up, step-by-step. I have it so that Version 3.6.7 is on the left side and Version 3.6.8 is on the right side. Now what do I do from here?

[Dismounted]

You need to make the mandatory changes as outlined in each release thread over at vB.com.

[SuperTaz]

So what color do I modify? Or do I modify them all?

[Shazz]

Change anything thats different, and keep what you have customized like that red part