Since ConfiForms app version 2.0 we publish release notes here 

Version 2.0.0

• ConfiForms now has a new storage layer, with much faster edit and delete operations. And with faster and less memory consuming search / filtering operations. 
  There are no limits on the dataset size per form. And the size of the record is limited by the number of characters your database can hold in a CLOB type field (ConfiForms limits are 2,147,483,647 bytes)

• Data migration is done for your automatically when you access the form for the first time. This could take some time for the first load, depending your your dataset size

  There are methods to help you to understand how you data looks like and force the migration via migration APIs if you want to do so (accessible only to Confluence system administrators)

  Storage analysis

  [YOUR_CONFLUENCE_SERVER_URL]/ajax/confiforms/rest/storage-analysis?spaceKey=

  Auto-migration

  [YOUR_CONFLUENCE_SERVER_URL]/ajax/confiforms/rest/auto-migration?spaceKey=

• Your tables will look different and use the cleaner styles as provided by AUI - https://docs.atlassian.com/aui/7.8.0/docs/tables.html

• Your forms look cleaner as well, and also follow the guidelines and styles from AUI

• ConfiForms is DC ready (approval is in progress)