Dell Client Systems Support and Troubleshooting v2

Hello,

I am considering the new version of the exam, but curious on what the difference between D-CLS-ST-A01 and D-CLS-ST-A02 really is. 

Should someone who has the first version consider the new version if the certification does not expire?

I don't use the courses, giving a cheaper cost. I just buy the exam on Pearson VUE as I've been repairing Dell Computers for over a decade. Additionally, I've realized that some of the acronyms used are from Dell Manuals.

Are the only differences new questions from the jar that get picked for each test taker?