The following is an identification of the changed project files for an RC version of a Universal App with the RTM version of the project.

The RTM version was generated using the "simple" method: Created as a new blank Windows 10 Universal app in the RTM version of Visual Studio 2015 on an RTM version of Windows 10, and copying of source files (MainPage.xaml and MainPage,cs .. i.e. overwrite) to the new project from the RC version. References etc as in RC version were added to the RTM project version.

There is discussion of porting an existing RC UA project to RTM but it seems rather complex. See links here:
Windows 10 RTM VS 2015 RTM and UWP (Universal) Apps–”Are we there yet!”

A file comparison the RC and RTM project files is blogged at:
Win 10-IoT: Porting a VS 2015 RC Universal CS app project file to RTM


Filename Color Key:
Changed files
Copied across files (i.e. replaced with original)
Removed files
Added Files/Folders
   
Mode:  Differences  
Left base folder: C:\Temp\MySQLiteUWPAppRC  
Right base folder: C:\Temp\MySQLiteUWPAppRTM  

Files in RC Version of UA Project	File in RTM of UA Project
App.xaml.cs	App.xaml.cs
ApplicationInsights.config	ApplicationInsights.config
MainPage.xaml	MainPage.xaml
MainPage.xaml.cs	MainPage.xaml.cs
MySQLiteUWPApp.csproj	MySQLiteUWPApp.csproj
Package.appxmanifest	Package.appxmanifest
packages.config
	project.json
	\Service References\Application Insights:
	ConnectedService.json
\Assets:	\Assets:
	LockScreenLogo.scale-200.png
Logo.scale-100.png
SmallLogo.scale-100.png
SplashScreen.scale-100.png
	SplashScreen.scale-200.png
	Square44x44Logo.scale-200.png
	Square44x44Logo.targetsize-24_altform-unplated.png
	Square150x150Logo.scale-200.png
	StoreLogo.png
StoreLogo.scale-100.png
	Wide310x150Logo.scale-200.png
WideLogo.scale-100.png

Note discussion in the previous blog with respect to the image files.