Thunderbird 102.9.0 is a security update for the open source email client

The new version of the email client is available already. Existing Thunderbird installations should receive the update automatically, if the automatic updates functionality has not been disabled by the administrator. 

Some users may prefer to update the application manually. This is done by selecting Help > About Thunderbird, or by selecting the Settings icon in the new sidebar on the left.

Thunderbird displays the installed version in a small overlay window in the interface. The email client performs an update check and will download and install updates that it finds during the check.