javanna 531d44f446 Adjust serialization versions after backport
Now that elastic/x-pack-elasticsearch#3985 has been backported to 6.x, we can update the version conditions from 7.0.0-alpha1 to 6.3.0

Original commit: elastic/x-pack-elasticsearch@b068ca92a7
2018-02-22 16:00:47 +01:00
..
2018-02-15 22:34:12 +02:00