What are the differences between nRF SDK for Mesh version 1.0.1 and 2.2.0?

Hi all,

I'm testing out and adapting the Thingy Mesh Demo v0.1, which uses nRF SDK for Mesh v1.0.1 for my internship. I will be testing out a Thingy's Mesh network for the following few months. 

Now I am wondering if it is advisable to switch to v2.2.0, for this question I would like to know the differences between the 2 versions. I have already found the changelog but I find it hard to find out the exact differences. 

I hope someone can help me with this!

Best regards,