DOC: changelog

CHANGELOG.rst

@@ -2,8 +2,8 @@ FUNPACK changelog
 =================
 
 
-2.3.0 (Under development)
--------------------------
+2.3.0 (Tuesday 12th May 2020)
+-----------------------------
 
 
 Changed
@@ -15,7 +15,11 @@ Changed
   variables. This should give superior performance.
 * Revisited the :meth:`.DataTable.merge` to optimise performance in all
   scenarios.
-* Improved performance of the :mod:`.fmrib` date/time normalisation routines.
+* Improved performance of the :mod:`.fmrib` date/time normalisation routines,
+  and changed their usage so they are now applied as "cleaning" functions
+  after data import, rather than just before export. This means that date/
+  time columns can be subjected to the redundancy check (as they will have
+  a numeric type), and will improve data export performance.
 
 
 2.2.1 (Monday 4th May 2020)