release 6.8.4.0

Author: vroyer

CHANGES.txt

@@ -1,6 +1,7 @@
-6.8.4.0 - 2019-12-03
+6.8.4.0 - 2020-01-02
   * Upgrade to Elasticsearch 6.8.4
-  * Upgrade to Cassandra 3.11.5
+  * Upgrade to Cassandra 3.11.5.1
+  * Fix #315 missing subfield when indexing a doc with 2 or more new subfields
   * Known issue on geoshapes
 
 6.2.3.21 - 2018-10-16