Up and running on XE6 Update 1.

Up and running on XE6 Update 1.  
- No new hints or warnings.
- One code incompatibility with XE5 found in the uses statement:
{$if compilerversion >= 27}
  System.JSON, // XE6 and upwards
{$else}
  Data.DBXJSON, // XE5
{$endif}

So far, so good. It's the smoothest Delphi upgrade yet.
Almost too easy... what can go wrong? ;)