Just installed the new version of SQL Developer without a problem.
My old version was 188.8.131.52 (EA 2 -beta)
The new version is (EA3)
Some first tests where going fine on my Mac.
Check APEX Office Print.
Make your template in Word, Excel or Powerpoint and print into Word, Excel, Powerpoint, PDF or HTML5. One APEX plugin, takes less than a minute to setup.