Neo4j embedded configuration, 2.2.5 version

Hi, everyone..
I my project we use Neo4j 2.2.5 version i'd like to create embedded neo4j as maven library in spring boot project, i have tried to use instructions from official docummentation but it didn't work ... Maybe someone have a docummentaion for 2.2.5 version or workable configuration template...

is there a reason to use Neo4j 2.2.5 which was released 4+ yrs ago ( Neo4j 2.2.5 - Neo4j Graph Data Platform ) and not a more current version