Neo4J version upgrade from 3.5.12 to 4.x.y

Currently we are using Neo4J version 3.5.12 in my product. As a best practice, we are planning to update the version (maybe 4.4.3). I wanted to ask are there any breaking changes which I should take care during updation?

To give some more context, we have hosted Neo4J database on an EC2 instance in AWS. The installation steps are provided in the form of User Data.

@nishantmaharishi

see Neo4j Upgrade and Migration Guide - Upgrade and Migration Guide

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