Apple today released an OS X El Capitan Beta Supplemental Update, with the release notes indicating it "fixes an issue that may cause some 32-bit apps to quit unexpectedly."



The update is appearing for users on both the third developer beta, which was seeded on Wednesday, and the public beta released yesterday.

With the start of public beta testing, a wider audience now has access to OS X El Capitan, which is planned for a full public release in the fall, presumably around the October timeframe Apple has used for OS X updates the past several years.