Safari 5.1.7 for Windows contains improvements to performance, stability, compatibility, and security, including changes that:

• Improve the browser's responsiveness when the system is low on memory
• Fix an issue that could affect websites using forms to authenticate users

For detailed information on the security content of this update, please visit: http://support.apple.com/kb/HT1222

SHA1 (Windows)= f601df0106987bfffc3f22b046ba835e4f8d29c6