According to product support, they are supporting MiVB 9.x and 10.x. MiVB 8 and below are no longer supported.
Historically they change their supported version based on how it suites the company.
I've recently had to ask about this because my logic of N-2 would be they would support 10.x(new), 9.x(-1) and 8.x(-2). Apparently they've changed this to now support 10.x(new), 9.4(-1) and 9.3(-2). With only "return to service" support of 9.2, 9.1 and 9.0. And End of life of 8.0 and all previous releases.