Thank you!
The column should be there, but if not, try clicking "Default Columns" under the blue dashboard.
And actually testing for MS17-010 for that column has been disabled in the pre-release due to an issue a fellow user had with it alerting their IDS software. But you can re-enable it using the "SMBv1" button. It will not yet save the setting however.
Even when this option is disabled, the SMB Security column should still be visible, but it will then only show SMBv1/v2 status.