This plugin will help you to check whether you can upgrade directly to the next major version of Elasticsearch, or whether you need to make changes to your data and cluster before doing so.
It looks like it is treating the "transform" field under properties as using the removed source transform feature when it should only be checking for "transform" directly under the document type level.
clintongormley
commented
8 years ago
It looks like it is treating the "transform" field under properties as using the removed source transform feature when it should only be checking for "transform" directly under the document type level.