we want to sync only delta content from Production to lower environments.
does vault support this?
also is grabbit supported for AEM 6.5?
AEM supports grabbit for content sync but preferred one is vlt.
But vault downloads all repository data. Not just delta content.
Difference between vlt n grabbit is explained in below Adobe doc 6.5. Please have look( check migrate between experience manager deployment section)
For grabbit usage with aem, please check the below article.