Revert "Revert "MAGN-3023. Port Sun Path node.""

This reverts commit 2d5df6bc16c2ae374b1dfd93a1264756c5131e3b.
Revert "Revert "Remove old updater, and add some notes.""

This reverts commit f4f718f25a967825fe96ae1096ad39077dcd7d25.