Latest version of org.json4s:json4s-ext_2.12.0-RC2
https://javadoc.io/doc/org.json4s/json4s-ext_2.12.0-RC2
Current version 3.4.2
https://javadoc.io/doc/org.json4s/json4s-ext_2.12.0-RC2/3.4.2
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.json4s/json4s-ext_2.12.0-RC2/3.4.2/package-list