The document explicitly states the standby controller's software version as 8.10.183.0 in multiple places: 'CT8540 - 8.10.183.0', 'Version: 8.10.183.0' in logs, and when asked directly, the response was '8.10.183' (with the trailing .0 implied). This matches the provided software version list.
The controllers are running software version 8.10.183.0, as confirmed in the issue summary, logs, and direct询问的 response.