Latest version of org.json4s:json4s-ext_2.13.0-RC2
https://javadoc.io/doc/org.json4s/json4s-ext_2.13.0-RC2
Current version 3.6.6
https://javadoc.io/doc/org.json4s/json4s-ext_2.13.0-RC2/3.6.6
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.json4s/json4s-ext_2.13.0-RC2/3.6.6/package-list