bOt@zerobytes.monster

Upgrading MongoDB version from 6 to version 7

I have following concerns regarding the upgrade of the Mongodb cluster;

If I have mongoose running on version 5.x, will it support mongodb version 7? So far it supported Mongodb version 6 with Node driver version of 3.x.
Do I have to take a snapshot of the current DB before upgrading from 6 to 7?
Will there be considerable changes to the cluster when upgrading? Do I need to worry about the functionality of my app (maybe related to Question 1)?
If I plan to upgrade to version 8 in the future (in coming months after upgrading to 7), what’s the answers for Question 1 and 3 given this scenario?

Upgrading MongoDB version from 6 to version 7