DOC: changelog

CHANGELOG.rst

@@ -14,10 +14,15 @@ Added
   this is simply a wrapper around the UNIX ``wc`` tool.
 * New :func:`.util.cat` function to concatenate multiple files together;
   this is simply a wrapper around the UNIX ``cat`` tool.
+* New :func:`.util.inMainProcess` function so a process can determine whether
+  it is the main process or a worker process.
 * New :meth:`.DataTable.subtable` and :meth:`.DataTable.merge` methods, to aid
   in passing data to/from worker processes.
 * Processing functions can now be specified to run independently on a subset
   of variables by using ``'independent'`` in the variable list.
+* New ``any`` and ``all`` operations which can be used in conditional
+  statements to control how the conditional results are combined across
+  multiple columns for one variable.
 
 
 Changed