dhtmlx grid 1.5

We are currently using the dhtmlxgrid version 1.4 for one for our current projects and we are planning to upgrade the grid to the next version which is 1.5. With the new version of the grid will the existing code still work? or do we have to make any changes to the existing code??

The API is fully backward compatible.
There are few small changes in events caused by fixes ( for example the onBeforeSorting event not occurs for column where sorting set to na ), look and fill of predefined skins slightly changed ( removed unnecessary gaps in autosize and split modes )

Basically any code which worked for dhtmlxgrid 1.4 must work for dhtmlxgrid 1.5 without modifications.