A new version of the Microsoft Authenticator is coming on August 15th.
As you may know, there has been multiple and different apps to manage MFA (Multi Factor Authentication) from Microsoft: one for Microsoft Account and one for Microsoft Corporate Account (Azure AD, Office 365…)
on August 15th, this will not be the case anymore; both account types will be supported with this new Authenticator app (finally 
)
In addition of this consolidation, you will also get the app available on wearable devices (like Apple Watch), support for finger prints (on iPhone and Android devices) or certificate based authentication support
Stay tuned