axe-core versions and use in axe DevTools HTML
By default, the version of all your axe DevTools products are synced with your axe-core version. This eliminates possible confusion between usage of multiple components of axe DevTools, or even multiple Deque products like axe monitor or axe auditor. To check your axe-core version, simply check the version of the axe DevTools component you're currently working with.
For more information on each axe-core version and its features, refer to the axe-core documentation.