Old versions for Linux?

I'm trying to use this tool

I have Neo4j version 4.0.3. During compilation of the above (with corresponding Neo4j version) I'm getting errors about the following two imports:

import org.neo4j.helpers.collection.MapUtil;
import org.neo4j.unsafe.batchinsert.BatchInserter;

I assume the codebase has been refactored. How can I figure out the last version of the Neo4j API that had these methods and where can I download the corresponding version?

Thanks!

Nevermind, I found a fork which solves the problems