CRM iPad 11.5

Hi,

can anyone know the impact for CRM if we update the iPad to IOS11.5 ?

1) we are using only Out of Box functionalities.

2) There are no Custom Workflows, JavaScript , Plugins in our environment.

3) All functionalities we are handling using on demand workflows,Business rules, Business process flows.

Please suggest me on this.

Thanks,

Rajeev