Just about 24 hours after Apple released the El Capitan public beta, the company has released a supplemental update for the Mac operating system.
According to Apple, the update fixes a problem that causes 32-bit applications to crash.
To install the update, open the App Store app and click on the Updates icon. The supplemental update should appear for you to install. You can also click on the Apple menu, select About This Mac and, in the Overview window that appears, click on the Software Update button. This will launch the App Store app.