I informed the client that the site is updated to the latest update of their WP version. Just like all software, updates are provided for security reasons.
I gently explained to our client to check out the WP latest release page
Her version is WP 5.3.3 — which was released in April 29, 2020
The newer WP version is 5.4.1 — which was also released in April 29, 2020
Both versions have were updated on the same date.
This was the best analogy I could provide: Imagine buying an iPhone X, and then after a year the iPhone 11 comes out. So iPhone 11 is the newest release but then they also provide a software update for the iPhone X — ensuring that it’s secure. Does that mean your iPhone X is an older version, sure — but it doesn’t make it less secure. You can definitely update to the iPhone 11 but its cost-prohibitive.
Updating to the latest release is for security purposes and yes you always want your website to be secure.
We always build websites using the latest release. Does that mean you update every time a new version comes out — yes it’s possible but expensive. WordPress updates every month. Sometimes multiple times per month. It would be expensive to update the version every single time. So instead, we ensure that all the websites we manage are secure — whenever someone mentions that you have to update your WP version frequently — they probably don’t understand that version updates provide the same level of security. When WordPress stops supporting the version is when you definitely need to update the version on your website. We require our clients to update versions yearly. When signing up for our managed hosting package, the Website’s WP version is updated to the latest version update.