Work Manager 5.3 on ios8

Hi Experts,

I have work manager 5.3 application running on ios7.Now want to upgrade my device to ios8. Having know that many features have been updated from the below link

iOS 8 Changed How I Work on My iPhone and iPad – MacStories

What would be the impact of ios8 on work manger 5.3 application like the look and feel,application specific database....

Thanks in advance

Regards,

Sravanthi