Visual Composer for CE 7.1 upgrade questions

Hi

We are looking at moving to Visual Composer for CE 7.1 and have a few questions

• Can you have both Visual Composer for CE 7.1 and Visual Composer 7.0 running on the same server instance at the same time for development?

• Is Flex (Flash) still a supported runtime or has WebDynpro replaced it completely?

• Can 7.0 models now be migrated to Visual Composer for CE 7.1?

Thanks in advance for any feedback.

Aaron