Safari 5.1.2 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 2011-11-19 for public access and a brief summary of important updates and change log pertaining to this edition can be read below.

Safari 5.1.2 is built on Webkit 534.52.7 rendering engine and has addressed many issues related to excessive memory usage, browser session hanging and white flashes in page rendering.

This edition has now provides support for native PDF viewing, that is the PDF file gets opened within web instead of external applications like Adobe reader.