Upgrade from DhtmlxSuit 4.5.2 to DhtmlxSuit 7.0

Suite and Optimus Suite 7
#1

Are there any security/ new vulnerability concerns with upgrading from DhtmlxSuit 4.5.2 to DhtmlxSuit 7.0?

#2

There are no known security/vulnerability issues in the dhtmlxSuite 7 (or the latest v8).