Editing: Automatic empty lines before new entries.
The variable `org-blank-before-new-entry' regulates if Org should
insert a blank line before a new entry, when making a new headline or
plain list item. Up to now, the possible values in each case where t
or nil, i.e. unconditionally do or don't insert a blank line.
Now each setting can also be `auto'. If this is the case, Org will
look if the current entry, of which the command creates a sibling,
does have a blank line before it. If yes, it will also make a blank
line. If not, it will not. This seems so useful that I have made
this behavior the default.