updated changelog

Author: PierreRaybaut

CHANGELOG.md

@@ -1,13 +1,20 @@
 # guidata Releases #
 
 
+### Version 1.7.5 ###
+
+Bug fixes:
+
+* `FilesOpenItem.check_value` : if value is None, return False (avoids "None Type object is not iterable" error)
+
+
 ### Version 1.7.4 ###
 
 Bug fixes:
 
-* Fixed compatibility issue with Python 3.5.1rc1 (Issue #32: RecursionError in userconfig.UserConfig.get)
-* HDF5Reader.read_object_list: fixed division by zero (when count was 1)
-* hdf5io: fixed Python3 compatibility issue with unicode_hdf type converter
+* Fixed compatibility issue with Python 3.5.1rc1 (Issue #32: RecursionError in `userconfig.UserConfig.get`)
+* `HDF5Reader.read_object_list`: fixed division by zero (when count was 1)
+* `hdf5io`: fixed Python3 compatibility issue with unicode_hdf type converter
 
 
 ### Version 1.7.3 ###