Update Changelog.md

Changelog.md

@@ -2,6 +2,9 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.74] - 2021-08-31
+- corrected cache key from Inventory refresh
+
 ## [0.73] - 2021-08-23
 - allow gui info/hints in gws direct interface config