Comment 1 for bug 1003950

update manager icon appeared for me in the launcher automatically yesterday, I clicked it and update manager appeared, hence the issue does not exist for everyone. This could have been a one time issue for you and not something that's 100% reproduce able. Can you test again and let us know if the issue happens for you again as well.

PS: that's really not a helpful way to report bugs. Steps to reproduce the issue are really important not giving the link to other report.