Update d/changelog for 3.9 release
Update d/changelog for 3.9 release

snazy/cassandra,strapdata/cassandra,hengxin/cassandra,ollie314/cassandra,belliottsmith/cassandra,Instagram/cassandra,scylladb/scylla-tools-java,aweisberg/cassandra,jrwest/cassandra,Jaumo/cassandra,blambov/cassandra,DikangGu/cassandra,Instagram/cassandra,snazy/cassandra,ifesdjeen/cassandra,michaelsembwever/cassandra,WorksApplications/cassandra,josh-mckenzie/cassandra,modempachev4/kassandra,kgreav/cassandra,beobal/cassandra,jasonwee/cassandra,Instagram/cassandra,mambocab/cassandra,blambov/cassandra,spodkowinski/cassandra,pauloricardomg/cassandra,carlyeks/cassandra,bmel/cassandra,chbatey/cassandra-1,bcoverston/cassandra,tjake/cassandra,jeromatron/cassandra,scaledata/cassandra,Jollyplum/cassandra,jasonstack/cassandra,strapdata/cassandra,iamaleksey/cassandra,spodkowinski/cassandra,exoscale/cassandra,szhou1234/cassandra,blerer/cassandra,mshuler/cassandra,krummas/cassandra,sedulam/CASSANDRA-12201,josh-mckenzie/cassandra,sedulam/CASSANDRA-12201,tommystendahl/cassandra,cooldoger/cassandra,tjake/cassandra,aureagle/cassandra,jrwest/cassandra,hengxin/cassandra,stef1927/cassandra,Jollyplum/cassandra,driftx/cassandra,jasobrown/cassandra,ptnapoleon/cassandra,christian-esken/cassandra,DikangGu/cassandra,juiceblender/cassandra,vaibhi9/cassandra,kgreav/cassandra,clohfink/cassandra,beobal/cassandra,krummas/cassandra,scylladb/scylla-tools-java,apache/cassandra,scaledata/cassandra,jbellis/cassandra,juiceblender/cassandra,aureagle/cassandra,spodkowinski/cassandra,clohfink/cassandra,adelapena/cassandra,Jaumo/cassandra,szhou1234/cassandra,aweisberg/cassandra,jeffjirsa/cassandra,aweisberg/cassandra,stef1927/cassandra,vaibhi9/cassandra,michaelsembwever/cassandra,tommystendahl/cassandra,stef1927/cassandra,bdeggleston/cassandra,krummas/cassandra,adelapena/cassandra,spodkowinski/cassandra,blerer/cassandra,aweisberg/cassandra,joesiewert/cassandra,thobbs/cassandra,josh-mckenzie/cassandra,scylladb/scylla-tools-java,yhnishi/cassandra,exoscale/cassandra,modempachev4/kassandra,instaclustr/cassandra,Jollyplum/cassandra,Instagram/cassandra,beobal/cassandra,jasonstack/cassandra,ptnapoleon/cassandra,blerer/cassandra,mike-tr-adamson/cassandra,beobal/cassandra,mshuler/cassandra,bcoverston/cassandra,ollie314/cassandra,adelapena/cassandra,aboudreault/cassandra,clohfink/cassandra,sharvanath/cassandra,cooldoger/cassandra,vaibhi9/cassandra,jasonstack/cassandra,mkjellman/cassandra,adejanovski/cassandra,blambov/cassandra,iamaleksey/cassandra,scylladb/scylla-tools-java,instaclustr/cassandra,thelastpickle/cassandra,bdeggleston/cassandra,driftx/cassandra,thelastpickle/cassandra,mike-tr-adamson/cassandra,yukim/cassandra,mkjellman/cassandra,jeffjirsa/cassandra,jasobrown/cassandra,cooldoger/cassandra,bdeggleston/cassandra,mkjellman/cassandra,sedulam/CASSANDRA-12201,apache/cassandra,modempachev4/kassandra,jeffjirsa/cassandra,pauloricardomg/cassandra,iamaleksey/cassandra,michaelsembwever/cassandra,joesiewert/cassandra,sharvanath/cassandra,tommystendahl/cassandra,bcoverston/cassandra,kgreav/cassandra,WorksApplications/cassandra,strapdata/cassandra,yukim/cassandra,Jaumo/cassandra,yhnishi/cassandra,hengxin/cassandra,adelapena/cassandra,DikangGu/cassandra,mkjellman/cassandra,ifesdjeen/cassandra,driftx/cassandra,jeffjirsa/cassandra,apache/cassandra,carlyeks/cassandra,instaclustr/cassandra,pauloricardomg/cassandra,tjake/cassandra,jasobrown/cassandra,clohfink/cassandra,yhnishi/cassandra,christian-esken/cassandra,jeromatron/cassandra,carlyeks/cassandra,chbatey/cassandra-1,adejanovski/cassandra,jasonwee/cassandra,ifesdjeen/cassandra,thobbs/cassandra,bcoverston/cassandra,michaelsembwever/cassandra,snazy/cassandra,apache/cassandra,kgreav/cassandra,mshuler/cassandra,bmel/cassandra,exoscale/cassandra,strapdata/cassandra,snazy/cassandra,mshuler/cassandra,jeromatron/cassandra,cooldoger/cassandra,jrwest/cassandra,thelastpickle/cassandra,jasobrown/cassandra,jbellis/cassandra,mike-tr-adamson/cassandra,thelastpickle/cassandra,stef1927/cassandra,belliottsmith/cassandra,driftx/cassandra,thobbs/cassandra,aboudreault/cassandra,mambocab/cassandra,tommystendahl/cassandra,aureagle/cassandra,ollie314/cassandra,jasonwee/cassandra,jrwest/cassandra,yukim/cassandra,josh-mckenzie/cassandra,jbellis/cassandra,scaledata/cassandra,ifesdjeen/cassandra,blerer/cassandra,christian-esken/cassandra,mike-tr-adamson/cassandra,yukim/cassandra,belliottsmith/cassandra,joesiewert/cassandra,pauloricardomg/cassandra,adejanovski/cassandra,szhou1234/cassandra,mambocab/cassandra,instaclustr/cassandra,blambov/cassandra,juiceblender/cassandra,krummas/cassandra,aboudreault/cassandra,szhou1234/cassandra,tjake/cassandra,bmel/cassandra,sharvanath/cassandra,iamaleksey/cassandra,WorksApplications/cassandra,belliottsmith/cassandra,WorksApplications/cassandra,ptnapoleon/cassandra,juiceblender/cassandra,bdeggleston/cassandra,chbatey/cassandra-1