Safari 5.1.4 with JavaScript and PDF Handling Improvements Seeded to Developers

As noted by 9to5Mac, Apple today began seeding Safari 5.1.4 to developers for testing, signaling the next round of improvements for Apple's browser software. Safari 5.1.4 is available in versions for OS X Lion, Mac OS X Snow Leopard, and Windows, and the release notes ask developers to focus their testing on JavaScript performance, interactions between plug-ins and zooming, and PDF printing.

JavaScript Performance Enhancements
Safari 5.1.4 on Lion includes many fixes that enhance JavaScript performance. Please test webpages that use JavaScript and look for compatibility issues.

Plug-Ins & Zooming
Please test interaction with plug-ins and the appearance of plug-in content
while zooming. Please test zooming using gestures and keyboard shortcuts.

Printing PDFs
Please test printing PDFs loaded into Safari as well as PDFs displayed in iframes.

Using PDFs Printed from Webpages
Please test links in PDFs created from webpages using Safari 5.1.4.

Safari 5.1.3 was released just yesterday as part of OS X 10.7.3 and is a Lion-only release for now, as Safari 5.1.2 remains the most up-to-date version available for Mac OS X Snow Leopard and Windows users.