Finalizing SQL Server 2012 SP2 update

Hi,

   I just successfully upgraded SQL Server 2012 Developer Edition from SP1 CU8 to SP2.

   Here is the actual portrait I have in my control panel (Installed programs + version):

       Version changed after SP2 update (through Windows Update):

         Microsoft SQL Server 2012 Express LocalDB                          11.2.5058.0

        Microsoft SQL Server 2012 Transact-SQL ScriptDom              11.2.5058.0
        Microsoft SQL Server 2012 Transact-SQL Compiler Service    11.2.5058.0
        Microsoft SQL Server 2012 Native Client                                11.2.5058.0
        Microsoft SQL Server 2012 Policies                                         11.2.5058.0
        Microsoft SQL Server 2012 Setup (English)                            11.2.5058.0
        Microsoft VSS Writer for SQL Server 2012                              11.2.5058.0
        Microsoft System CLR Types for SQL Server 2012                  11.2.5058.0
        SQL Server Browser for SQL Server 2012                               11.2.5058.0

      Version changed only after installing corresponding Features Pack component:

         Microsoft SQL Server 2012 T-SQL Language Service              11.2.5058.0    
         SQL Server Report Builder 3 for SQL Server 2012                  11.2.5058.0
         Microsoft SQL Server 2012 Management Objects                   11.2.5058.0

      Version did not change:

         Microsoft SQL Server System CLR Types                                10.51.2500.0
         Microsoft SQL Server 2012 Data-Tier App Framework            11.1.2902.0

My questions:

1. Am I missing any components update or is my actual SP2 setup OK?

2. Even if I tried to install DACFramework SP2 Feature pack by running corresponding installer, it told me that I had an higher version...  Does any of you have a different version number for this component?

3. I actually have SSDT for VS2010 installed.  The corresponding versions I actually have are the following:

           Microsoft SQL Server Data Tools 2010                                  10.3.31009.2
           Microsoft SQL Server Data Tools - enu                                  10.3.31009.2
           Microsoft SQL Server Data Tools Build Utilities - enu             10.3.31009.2

    Should I consider upgrading any component so they work with SQL 2012 SP2 properly?  If so, could someone provide me the corresponding download/webpage links?

4. Finally, should I upgrade to CU2 which is actually available. Among other problems, I notice that it should fix an index rebuild problem.  Any other major issues it targets?  Is there any easy way I can test if I should install this update or not?

Thanks for helping.