I am looking for the upgrade from coral2(in AEM 6.3) to coral3 in AEM 6.5.
In the adobe links I am getting the conversion tool for AEM 6.4 only
Dialog Conversion Tool
Will this be compatible for AEM 6.5 as well.
Thanks in advance
New documentation is Dialog Converter | AEM Modernization Tools which has some other tools to support policy import, component convert and page structure convertor. This supports 6.5.
6.4 and 6.5 both use the same version of coral UI. So, the same page is applicable to 6.5. Sharing the link for the same page for 6.5 at 
 Dialog Conversion Tool
Here is a good KB: The Strategy to Support CoralUI 2-based Code in a CoralUI 3-based Page — Granite UI 1.0 documentatio...