Latest version of org.json4s:json4s-core_2.12.0-M4
https://javadoc.io/doc/org.json4s/json4s-core_2.12.0-M4
Current version 3.4.0
https://javadoc.io/doc/org.json4s/json4s-core_2.12.0-M4/3.4.0
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.json4s/json4s-core_2.12.0-M4/3.4.0/package-list