Quick question concerning version sources

Hey :)
Can the source downloads [.zip and .tar.gz] in https://github.com/stefanhaustein/kxml2/releases/tag/v2.4.2 be regarded as the stable sources for kxml2 version 2.4.2?
The reason I am asking is that for 2.4.2, I noticed some System.out.println usages in org.kxml2.io.KXmlParser.java (around line 760)
They made me wonder whether this is a stable version. The same println was not present in 2.3.0 .
Thanks :)

EDIT: Also, is there a javadoc jar for 2.4.2?