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The 4.1.8 release is a bug fix release that contains a new feature improvement.
Feature Improvements
IM-1255 - User customizable header and support links. Under Admin->Application Settings, you can now set your own custom header image (note the image size), as well as email and phone number to contact for support.
Bug Fixes
IM-1317 - IPAM Gadget - Region dropdown is blank when editing
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