Before performing updates, we recommend Backing Up the Database. 

...

Updates are applied using the Linux package manager. The update process will restart the Partek^® Flow^® server and the running tasks will be stopped and restarted. Therefore it is best to plan updates during periods of low activity on the Partek Flow server. To update Partek Flow, open a terminal window and enter the following command.

...

For the YUM package manager, if updating Partek Flow fails with a message claiming "package not signed," enter:
$ yum --nogpgcheck –y update partekflow
Note that our packages are signed and the message above is erroneous.

MacOS 

Download the latest version of the Partek Flow installer DMG file for Mac using the link below:

http://packages.partek.com/osx/flow-release

...

...