We rewrote almost all the code in Extension Manager CC. The update feature has not been implemented in UI in GM build due to schedule. It will be available in 7.1 patch. But we implemented a new command line tool which can be used to check extension update and update extension if update is available. You can find ExManCmd.exe in Extension Manager CC installation folder (Windows) or ExManCmd in "/Applications/Adobe Extension Manager CC/Adobe Extension Manager CC.app/Contents/MacOS" (Mac). Running it in Command Prompt (Windows) or Terminal (Mac) you will see help information about how to use it.
Hi Carl, thank you for your prompt answer.
Is it possible to run the command line tool from inside a running extension so that the extension can update itself?
Also, do you have a timeframe for 7.1 release?
7.1 release will be available next month. I think the simpler workaround for you is to write a batch file or script file to call the command line tool and ask users to run it.