Big different between redhat linux 7.1 - 7.3?

I'm not sure if this is the right forum. If not, I apology for it.

I have an interactive training course for redhat linux 7.1 administration but can't find a 7.1 version here in Denmark - only redhat linux ver. 7.3. My questions is if there is a big difference between 7.1 and 7.3 so that it would be useless for me to take that course. Hoping for an answer.

Thanks
John

 

 

 

 

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