Hi,
It depends on what components of the webMethods product suite your existing application uses. Being the existing solution is on 4.6, I assume you are talking about Integration Server components.
Although the core of IS architecture remains same, there are so many enhancements and capabilities added to it with successive versions of webMethods product suit. Some components are completelty replaced with newer set of tools and server components - for example the Mainframe Integration, work flow etc.
I was told by Software AG customer support that they are working on an upgrade guide which will become available some time in the near future.
You may contact Software AG with your scenario.
Cheers,
Sampy
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