6.4 export and import to 6.15

Enonic version: 6.15.5
OS: Ubuntu server 16.04

Hello there Enonic community,

Today I’m bringing you this question. It is possible to do an export from a 6.4.2 working installation and then do the corresponding import to a 6.15.5 working installation?. With all the modifications needed to migrate from 6.4 to 6.5.15 that includes the build.gradle and the creation of util library with their corresponding functions.

Look forward to your comments about.