we don't want to write to index file in older version formats
we don't want to write to index file in older version formats

Gouthamve/tsdb,GoogleCloudPlatform/prometheus,GoogleCloudPlatform/prometheus,alileza/prometheus,Gouthamve/prometheus,prometheus/prometheus,keegancsmith/prometheus,alileza/prometheus,Gouthamve/prometheus,alileza/prometheus,alileza/prometheus,prometheus/prometheus,GoogleCloudPlatform/prometheus,keegancsmith/prometheus,prometheus/prometheus,prometheus/prometheus,keegancsmith/prometheus,kangwoo/prometheus,Gouthamve/prometheus,kangwoo/prometheus,kangwoo/prometheus,GoogleCloudPlatform/prometheus,keegancsmith/prometheus,prometheus/tsdb,GoogleCloudPlatform/prometheus,prometheus/prometheus,keegancsmith/prometheus,Gouthamve/prometheus,alileza/prometheus,kangwoo/prometheus