The current workflow version can be found in the Workflow details panel and will display the date and time it was last updated. To view previous versions click on the back arrow icon. The active Workflow will be highlighted in the Version History panel.
To view further information such as notes, name, description, and author version ID select the required version, this will open the version detail panel. You can also archive the version (permissions allowing) from within this panel.
Clicking on a non active version of your workflow will bring up the option to Activate if your Team Settings allow and/or Archive that specific version.
Any changes made to your version of the Workflow will be updated immediately within the WFP Apps so you can be sure that users are working on the correct version.