Magento ver 2.1.6 - Added on Apr 11, 2017.
Magento 2.1.6 contains over 15 significant performance enhancements when compared to 2.1.5 http://devdocs.magento.com/guides/v2.1/release-notes/ReleaseNotes2.1.6CE.html
I want to know possible issue of upgrade magento 2.1.3 to 2.1.6.
Have anyone face any issue after upgrading magento version to 2.1.6
Magento said there is some issue with image resizing.