CHANGELOG.md in lifen-1.4.0 vs CHANGELOG.md in lifen-1.5.0

@@ -1,4 +1,9 @@
+1.5.0
+-----
+
+- Added threadsafe strategy when refreshing a token
+
 1.4.0
 -----
 
 - Added user :save and :find methods
 
\ No newline at end of file