Hi,

Moving from old org-mode versions (6.33 or 7.9.3f-17-g7524ef) to the latest stable one currently (8.3.2), I noticed two changes which made me out of my comfort zone.

1. Demoting/promoting a header now changes the indentation of text below.
   I reverted to the previous mode with '(setf org-adapt-indentation nil)' in ~/.emacs, and that's fine but I mentioned it in case it has an impact on point#2.
     
2. 'M-x fill-region' does not fill custom lists as before. In the previous version, I could select and fill several mixed paragraphs/lists directly. For example, filling the following block (without --- separator added as a delimiter in this message)
   ---------------
   # a very looooooooooooooooooooooooooooooooooooooooooooooooooooong comment
   
   a looooooooooooooooooooooooooooooooooooooooooooooooooooong sentence that should be filled over 2 lines
   
   - a looooooooooooooooooooooooooooooooooong item that should be filled over 2 lines
   
     - a looooooooooooooooooooooooooooooooooong item that should be filled over 2 lines
   
   a looooooooooooooooooooooooooooooooooooooooooooooooooooong sentence that should be filled over 2 lines
   ---------------
   resulted in (version 6.33 or 7.9.3):
   ---------------
   # a very looooooooooooooooooooooooooooooooooooooooooooooooooooong comment
   
   a looooooooooooooooooooooooooooooooooooooooooooooooooooong sentence
   that should be filled over 2 lines
   
   - a looooooooooooooooooooooooooooooooooong item that should be filled
     over 2 lines
   
     - a looooooooooooooooooooooooooooooooooong item that should be
       filled over 2 lines
   
   a looooooooooooooooooooooooooooooooooooooooooooooooooooong sentence
   that should be filled over 2 lines
   ---------------
   and now results in (version 8.3.2):
   ---------------
   # a very looooooooooooooooooooooooooooooooooooooooooooooooooooong comment
   
   a looooooooooooooooooooooooooooooooooooooooooooooooooooong sentence
   that should be filled over 2 lines
   
   - a looooooooooooooooooooooooooooooooooong item that should be filled over 2 lines
   
     - a looooooooooooooooooooooooooooooooooong item that should be filled over 2 lines
   
   a looooooooooooooooooooooooooooooooooooooooooooooooooooong sentence
   that should be filled over 2 lines
   ---------------
   
   Lists are not filled anymore and I have to select each list entry and fill it individually to get the same output.

So my questions are:

• Is there any simple way to revert to the previous mode with a variable?
• Else, could you explain briefly where I should look if I want to understand why the filling is skipped in this case, and eventually change it if I cannot change my mind and adapt to this different behavior? I had a look at function (org.el:23249 org-setup-filling) but I am not sure this is the right location.