Is there a Drupal way to force client browser to refresh after changes

I have just found out that visitors watch old versions of my site, because of client side caching (even after restarting the computer every day, which is odd…). When instructing a visitor to press Ctrl + F5 to refresh the page, everything looked good again. Apparently some browsers reload the cache even after re-starting the computer.

Now to my question. Is there any Drupal way to force the client-side browser to refresh pages with changed content?

I use Boost och Cache Expiration on my site for server-side caching by the way.

Thank’s in advance for any advice.

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