Back to the main panel disconnect question.

My house always had the meter outside and the main panel inside, with the main disconnect on the panel.

When an upgrade was done to the main panel, an extra breaker was added outside just below the meter. The electrician said this was a code requirement, because wire between the meter and the panel needed to be protected because of the location.

Did this new breaker now become the service disconnect? And if so, is the main panel now noncompliant for having ground and neutral bonded?