Amongst the many features that have changed with Blender 2.80 is Blender User Preferences. Previously in Blender 2.79 -/+ the control panel window could be accessed from File » User Preferences. For Blender 2.8 this is now Edit » Preferences.
Design note: the User Preferences menu option is now just Preferences, the properties window now Blender Preferences instead of Blender User Preferences.
So far as the available properties, settings and options are concerned much of those from Blender 2.79 have been carried over with additional properties that accommodate the updated rendering systems, Look Dev and Rendered for real-time viewport rendering, and offline Eevee, Workbench and Cycles engines.
Design note: updates to Blender 2.80 may mean a number of features and properties formally available have been removed or are now obsolete (provided but de-prioritised), as a result opening old *.blend projects created in previous versions will likely exhibit compatibility issues.
User Preferences is now just Preferences and can be accessed from the main Edit menu in Blender 2.80.
User Preferences is now called Blender Preferences but still provides access to all the applications underlying properties, options and settings.
User Preferences, now just Blender Preferences, have been moved from the main File to Edit menu.