This issue tracks the release note for the following Fedora Change:

https://fedoraproject.org/wiki/Changes/MigrateIfcfgToKeyfile

See https://fedoraproject.org/wiki/Changes/MigrateIfcfgToKeyfile#Upgrade/compatibility_impact . This isn't going to affect most folks, but may be significant for folks doing very specific old-fashioned network configuration. It may be worth talking to the Change maintainers about any potential tricky cases where things may not be perfectly converted.