Logic Pro X has been updated to version 10.2.4.
Logic Pro X 10.2.4
Compared to the 10.2.3 update that was released on June 9th, the 10.2.4 update seems to focus mainly on stability, reliability and performance. But you'll also find some general fixes, and several fixes regarding editing, the mixer, and a few plug-ins (including: "Audio is now routed properly from Audio Unit-based multi-output instruments in projects saved in previous versions of Logic Pro X".
To learn more about the Logic Pro X 10.2.4 update and previous Logic Pro 10.2 updates, see the official Logic Pro X Release Notes.
Make a Backup
As always, make sure you save a copy of the currently installed version as a backup before applying the update. If you don't know how to do that, Apple has a good support page about backing up the Logic Pro X application.