upd changes

Author: aulemahal

CHANGELOG.rst

@@ -5,11 +5,12 @@ Changelog
 `Unreleased <https://github.com/Ouranosinc/xsdba>`_ (latest)
 ------------------------------------------------------------
 
-Contributors:
+Contributors: Pascal Bourgault (:user:`aulemahal`).
 
 Changes
 ^^^^^^^
-* No change.
+* Remove the units registry declaration and instead use whatever is set as pint's application registry.
+  Code still assumes it is a registry based upon the one in cf-xarray (which exports the `cf` formatter). (:pull:`57`).
 
 Fixes
 ^^^^^