Apologies, but I see a variety of answers here for this question. For example, I saw in one chart that 5.4 is the latest supported for the VVX 411 SFB combination. Elsewhere, in another chart, I see that 5.5.2 is the latest "supported by Microsoft." Elsewhere, it appears that 5.7 is the latest. Currently, we're running 5.6 (with no issues except jittery audio.)
So, can we install 5.7, or should we revert to 5.4 or 5.5?
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From a support perspective the latest software is UC Software 5.7.1 at the time of replying to this post.
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