Release-Notes.md

@@ -2,6 +2,14 @@ This page includes notes about the changes in released versions of Glance. Newer
 
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+**version 0.4.3**
+
+Fixed a bug where float32 data was not assigned a default fill value of np.nan when it had no fill value
+
+Fixed a bug where float64 data was being inadvertently downcast to float32 for some file types
+
+------------
+
 **version 0.4.2**
 
 Cleaned up usage of keys() and moved to using importlib for loading configuration files, since imp is depreciated.