Patch is already upstream for quite a while, and is small and contained. It allows dispatcher scripts to respond to possible changes of DHCP options, which wasn't possible before.
Created attachment 468439 [details]
lease change event patch
This patch is very simple and does not change any existing functionality, it only adds a small bit of *new* functionality.
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DHCP lease change events now trigger dispatcher scripts at the /etc/NetworkManager/dispatcher.d location.
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.