Following the release of the first developer beta of macOS Sierra last week, Apple today has made the Safari 10 beta available for users on El Capitan and Yosemite. This means that developers can test the upcoming version of Safari without having to update their entire operating system.

A handful of features are limited to macOS Sierra, however, including Apple Pay on the web and Picture in Picture. Nevertheless, a host of feature are available to Yosemite and El Capitan users. Some features are limited to El Capitan, however, including Spotlight suggestions. The full breakdown can be seen below:

OS X El Capitan

Safari Extensions

Development of Safari App Extensions

New Bookmarks sidebar, including double-click to focus in on a folder

Redesigned Bookmarks and History views

Site-specific zoom

Improved AutoFill from your Contacts card

Reader improvements

HTML5 and legacy Plug-ins

Allow reopening of recently closed tabs

Spotlight suggestions for Top Hits

Back closing spawned tabs

Improved ranking of Frequently Visited Sites

Web Inspector Timelines Tab

Debugging using Web Inspector

OS X Yosemite

Safari Extensions

New Bookmarks sidebar, including double-click to focus in on a folder

Redesigned Bookmarks and History views

Site-specific zoom

Improved AutoFill from your Contacts card

Reader improvements

HTML5 and legacy Plug-ins

Allow reopening of recently closed tabs

Back closing spawned tabs

Improved ranking of Frequently Visited Sites

Web Inspector Timelines Tab

Debugging using Web Inspector

Earlier this month, we reported that with Safari 10 on macOS Sierra, Adobe Flash will be disabled by default. That means that websites will serve HTML5 interfaces as often as possible, but Safari 10 will also allow users to temporarily enable flash on a case-by-case basis or site-wide. This should lead to better performance, better power efficiency, and improved security, all areas in which Flash has hindered the Mac before.

Currently, Safari 10 is available for developers on both OS X 10.11.6 and OS X 10.10.5. It will, of course, be available to public beta testers next month when mac OS Sierra is also released to public testers. It will be released to everyone this fall.

Safari 10 for El Capitan and Yosemite can be downloaded from the the Apple Developer Center right now.

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