Upgrade from OpenWrt to LEDE

Issue: If I upgrade from OpenWrt to LEDE, do I need to re-config all the settings?

Solution: For all practical purposes, you can consider LEDE as the next version of OpenWrt, and expect as much trouble going from OpenWrt to LEDE than getting from one version of OpenWrt to another one. There will probably be some package whose configuration file needs some tweaking after the upgrade, but the vast majority of settings are exactly the same.