Which attributes of God have been especially at work since the Ahmadiyya Muslim Jamaat appeared?
There is no short answer to this. One would have to go through the whole history of the Ahmadiyya Muslim Jamaat and show at each point which attribute of God was especially revealed there.
God has many attributes, and all of them are at work at all times. Yet in different ages one or another stands out more clearly. The first verse above expresses this with the image of God revealing Himself every day in a new state.
Asking which attributes have been especially visible since the Ahmadiyya Muslim Jamaat appeared is a very large question. One would have to examine the history of the community step by step, its trials, its growth and the signs that accompanied it. Then one would have to show each time which attribute of God was revealed in it.
Such a study cannot be done in a few sentences. It would take many talks spread over years. A quick answer would not do justice to the question and could give a distorted picture, because it would highlight some attributes and overlook others.
But every believer can begin this study themselves. Whoever looks attentively at the history of their community and at their own life can recognise God at work in many places. The second verse above invites us to call on God by His perfect attributes. Whoever does so comes to know these attributes better over time.