You can now easily see the order in which you implemented solutions in Dynamics 365 CRM.

Solution layers allow you to view all component changes that occur due to solution changes over time. Within a solution layer, you can drill down to view specific changed and unchanged property details for a component.
— https://docs.microsoft.com/en-us/powerapps/maker/common-data-service/solution-layers

Here is an image of solution layers in the toolbar:

solution-layers-toolbar.png