macOS Sierra, Security, and Tex Live Utility After a fresh install of macOS Sierra, I installed the macTex distribution without any GUI programs. After that, I installed the latest release of the Tex Live Utility to update my tex distribution via a nice GUI. However, I cannot start the Tex Live Utility because macOS complains about that the program has not been signed by a verified developer. After I tried opening, there is a button under System -> Security to open the program anyway, but I keep going to see the same error message. This worked with another piece of software but with Tex Live Utility, this approach fails. Any idea on how to solve it?
They have released a fixed version.  You can update to the newest Tex Live Utility from the command line tlmgr update --self