Connectors have different "versions" in Tray.io. Every time an update is made to a connector, a new version is used. This helps to keep your workflows stable, while also allowing you to get the latest connector functionality when building new workflows.
How to update the version of a connector
1. Click the connector step that you want to edit.
2. Click the "sandwich" icon in the top right of the properties panel, and click "Show Advanced Settings".
3. Click the version dropdown, and pick the version you want (we always recommend the latest one)