Apple today released news for both OS X El Capitan (10.11.x) and OS X Yosemite (10.10.x).
First, the Safari 10: the new version of the browser is already installed on macOS Sierra (10.12), recently released by the company. However, if you don't plan to update your Mac's operating system, you can download only the browser update yourself.
According to Apple, the browser update adds support for Safari Extensions from the Mac App Store; where available, displays HTML5 video for faster loading, better battery life and stronger security; improves security by running plugins only on sites that you authorize; improves ?AutoFill? and adds support to automatically fill in information for any contact in the Contacts app (Contacts); improves formatting in the Reader view; and memorizes the zoom level of each website visited by the user.
For more information about the security content of this update, visit this page.
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In addition to Safari, who also gained news was the productivity suite iWork composed by the Pages, Numbers and Keynote apps.
Version 8.2.1 (262 MB) Requires macOS 10.14 or superior
Version 6.2.1 (205.2 MB) Requires macOS 10.14 or superior
Version 9.2.1 (438.3 MB) Requires macOS 10.14 or superior
The iOS and web apps were updated last week with the release of iOS 10; today it was the turn of apps for macOS, which gained real-time collaboration (feature in beta), support for multiple tabs and compatibility with images with a wide range of colors. In the case of Keynote, there is also the Keynote Live feature which allows people to view your presentation on your Mac, iPad, iPhone or the web (iCloud.com).
Update by Rafael Fischmann · 09/20/2016 s 16:45
Apple published a support article detailing the security corrections from Safari 10.