Following yesterday’s release of the OS X El Capitan public beta, Apple has pushed out a small update to the operating system to address issues that could cause 32-bit apps to crash. The update is available to users on the public beta and those on the separate developer preview.
There’s also an update to the Samantha voice that improves pronunciation. You can download both updates through the Updates tab of the Mac App Store. OS X El Capitan was announced during WWDC and will be released this fall.