Hi,
during last Openhabian update I decided to update Node-Red also.
The Node-Red itself seems to be updated to v0.20.0 but it stopped working, as a result I get “Lost connection to server…” message from UI.
I’ve noticed that the installer couldn’t update Node.js and left old one.
Does anyone knows how to fix it?
Below update status:
Stop Node-RED 
Remove old version of Node-RED
Remove old version of Node.js -
Leave existing Node.js - Node v8.15.1 Npm 6.9.0
Clean npm cache -
Install Node-RED core 0.20.0
Move global nodes to local
Install extra Pi nodes -
Npm rebuild existing nodes -
Add shortcut commands
Update systemd script
Regards,
Pawel