"I uploaded an updated version of the annual report, but the old version is still loading on the website." If you've received this email, then this session is for you.
By default, Drupal instructs external caches (Varnish, CDN, browser, etc) to cache static assets, such as CSS, PDF, and JPG, for 1 year. Without a caching strategy for static assets, you're likely to experience some headaches with these files. What actually happens when you delete a file from the Media Library? And what if you need to replace a file and keep the file name the same (instead of 2026_annual_report_0.pdf)?
In this session, we'll cover the Purge, Purge File, and Media Entity File Replace contrib modules, along with several others. We'll also dive into the Cache-Control header and how it can be leveraged to manage external caches.