Morning all from the business class lounge near gates B20 to B29. Just dropping in to confirm that the shuttle bus between Z and non Schengen B gates is still operational. Some of the signage and the walkways do look as though they could be temporary but I certainly found it very efficient. Arrived at Z25 from SIN and followed signage which led me to a bus underneath gate Z11. Very efficient and within 5 minutes we were dropped off in B non Schengen and didn’t have to pass any security checks etc. Very efficient service!