Safari 5.0.3 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 2010-11-18 for public access and a brief summary of important updates and change log pertaining to this edition can be read below.

Safari 5.0.3 is built on Webkit 533.19.4 rendering engine and has been released with accuracy improvements and stability of JavaScripts.

The consistency of pop-up blocker was compromised by some web scripts and this edition fixed the bug. Errors related to Video rendering of HTML 5 Videos with rotations or flips has been corrected in this release. 

Improved content rendering which caused overlapping in Flash 10.1 page in addition to reliability of keying text field in Facebook and Netflix applications. Another major correction is the improvement of accuracy of Top Sites and Top hit results in address bar.