Now low stability of province increases the revolutionary risk in province
What is the province stability?
The stability of the province is reduced if most of the province's residents do not come from the nationality of your Civilization.
For example the province was recently conquered
To increase the stability of the province, you can assimilate the province by promoting the culture of your civilization
Having large army in that province will increase stability as well
Assimilation
What is the difference between "Confirm >>" and "Confirm"?
"Confirm" - Process of assimilation starts in that province
"Confirm >>" - The process of assimilation begins in this province AND if there is any other province that requires assimilation, the game will show you next province which needs to be assimilated