To be confident you have the latest version do the following steps:
Enable "Auto update" on all templates and strategies that you use.
Check marketplace page of all strategies/templates that you use occasionally (weekly is fine) and look for an "Update" button.
Click the "Update" button if you ever see it to manually get the latest version of the templates or strategies.
Note: The "Updated on" date changes when I update the item AND when I edit the description/price of the Marketplace Item. As long as you have Auto update enabled and followed the above steps, you have the latest update.