The document explicitly mentions that the user is running DNA Center version 2.2.2.9. This information is crucial as it pinpoints the software version being used in the context of the issue described, which is related to micro-segmentation and SGACLs logging. The version 2.2.2.9 appears in the software version list provided, confirming it as the correct choice.
The software version discussed is 2.2.2.9 as it is directly mentioned in the problem details.