An important Zuul security update is going to be available next Thursday. We've released a minor update to sf 3.6 today with zuul 4.5.0 packages. We recommend to upgrade your system to this sub release before Thursday 24 June 14:00 UTC. We will release a minor release with zuul 4.6 next Thursday.
Make sure your deployment is up to date by running sfconfig --update.
If you experience any difficulties, please don't hesitate to raise an issue.