Can we add a new collector to out cluster using the latest version?

Document ID : KB000127796
Last Modified Date : 06/03/2019
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Question:
Currently we are using CA APM 10.5 (1 MoM, 2 Collectors). We want to setup a third collector want to know if we  can install APM 10.7 only for this third collector (the rest will have the old version). Is this supported/documented ?
Answer:
All Enterprise Managers in a cluster MUST be at the same release so you cannot add a 10.7 collector to an existing 10.5 cluster unless you also upgrade the existing 10.5 EMs to 10.7 at the same time.