Hi,
Yes, SOM can manage MXs running on different versions or MXs of different versions can be registered to SOM. For example, long back we used SOM v14.10 to manage both MX v14.10 and MX v14.7. Please refer to the links for more information.
https://docs.imperva.com/bundle/z-kb-articles-knowledgebase-support/page/290690191.html
https://docs.imperva.com/bundle/z-kb-articles-knowledgebase-support/page/290592177.html
https://docs.imperva.com/bundle/z-kb-articles-knowledgebase-support/page/290231189.html
https://docs.imperva.com/bundle/v14.18-dam-upgrade-guide/page/57802.htm
Regards,
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SBISOC 4430
Manager
Mumbai
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