We've just published new releases for both 5.x and 4.x versions of Node-RED.
Node-RED 5.0.8 includes a number of fixes from a wide range of new first time contributors - thank you to everyone for getting involved. We've also updated a number of dependencies to pick up security related fixes.
Node-RED 4.1.16 just contains the dependency updates.
The 5.0.8 docker images are already published, the 4.1.16 ones are still building as I type.