These versions were first released nine or more years ago and over 99% of WordPress installations run a more recent version. The chances this will affect your site, or sites, is very small.
If you are unsure if you are running an up-to-date version of WordPress, please log in to your site’s dashboard. Out of date versions will display a notice that looks like this:

The version you are running is displayed in the bottom of the “At a Glance” section of the dashboard.

As a reminder, the only actively supported version of WordPress is the most recent one. Security updates are only backported to older branches as a courtesy.
The Make WordPress Security blog has further details about the process to end support.


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