Before performing updates, we recommend Backing Up the Partek Flow 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.

Make sure Partek Flow is stopped before updating it.

$ service partekflowd stop

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 --nogpgcheck –y update partekflow
Note that our packages are signed and the message above is erroneous.

For tomcat build update, download the latest version from below:

wget --content-disposition packages.partek.com/linux/flow