Is there any change in latest DC Pandey books' questions?

Hello,
I'm a JEE 2021 Aspirant and have DC Pandey 2014 version. Is there any difference in questions in the latest version of DC Pandey? I was thinking if I should buy it or not?

Please answer it's very urgent !!

No need same questions and theory but in new edition it is properly organised...

I have the 2014 one. It's okay right ?

Yes

Okay Thanks