Safari 5.1 is a web browser developed by Apple Inc, available for download in full install version for Windows platforms from legacy sources. This version of Safari was officially released on 2011-07-20 for public access and a brief summary of important updates and change log pertaining to this edition can be read below.

Safari 5.1 is built on Webkit 534.50 rendering engine and has been released with a handful list of functionality additions and new technologies, let us explore one by one.

Introductions:

Safari now supports full-screen web pages, MathML (Mathematical Markup Language) and Web Open Font formats.

CSS3 Support:  

Safari 5.1 support many CSS3 elements including CSS3 Auto-hyphenation, CSS3 Vertical Text, and CSS3 Text Emphasis.

Extensions Support: 

This edition support pop-overs, menus, new event classes, and Reader interaction.