HI, I'm not on your PMC but I took a look at your source release and I think there a few things that need to be added to the LICENSE file as per the guidelines here [1]
These BSD licensed files: ./zookeeper-client/zookeeper-client-c/src/hashtable/hashtable.c ./zookeeper-client/zookeeper-client-c/src/hashtable/hashtable.h ./zookeeper-client/zookeeper-client-c/src/hashtable/hashtable_itr.c ./zookeeper-client/zookeeper-client-c/src/hashtable/hashtable_itr.h ./zookeeper-client/zookeeper-client-c/src/hashtable/hashtable_private.h This MIT licensed file: ./zookeeper-contrib/zookeeper-contrib-loggraph/src/main/resources/webapp/org/apache/zookeeper/graph/resources/date.format.js This MIT licensed files: ./zookeeper-contrib/zookeeper-contrib-loggraph/src/main/resources/webapp/org/apache/zookeeper/graph/resources/g.bar.js ./zookeeper-contrib/zookeeper-contrib-loggraph/src/main/resources/webapp/org/apache/zookeeper/graph/resources/g.dot.js ./zookeeper-contrib/zookeeper-contrib-loggraph/src/main/resources/webapp/org/apache/zookeeper/graph/resources/g.line.js ./zookeeper-contrib/zookeeper-contrib-loggraph/src/main/resources/webapp/org/apache/zookeeper/graph/resources/g.pie.js ./zookeeper-contrib/zookeeper-contrib-loggraph/src/main/resources/webapp/org/apache/zookeeper/graph/resources/g.raphael.js This MIT licensed file ./zookeeper-contrib/zookeeper-contrib-loggraph/src/main/resources/webapp/org/apache/zookeeper/graph/resources/raphael.js This BSD licensed file: ./zookeeper-contrib/zookeeper-contrib-loggraph/src/main/resources/webapp/org/apache/zookeeper/graph/resources/yui-min.js This Apache 2.0 licensed file: ./zookeeper-contrib/zookeeper-contrib-zooinspector/src/main/java/com/nitido/utils/toaster/Toaster.java This MIT licensed file: ./zookeeper-docs/src/main/resources/markdown/skin/prototype.js Please note that I may not have found all the 3rd party files in the source release. Kind Regards, Justin 1. https://infra.apache.org/licensing-howto.html#permissive-deps