Apple today released Safari 5.0.2 Software Update which contains improvements to compatibility and security, including the following:
• Fixes an issue that could prevent users from submitting web forms
• Fixes an issue that could cause web content to display incorrectly when viewing a Google Image result with Flash 10.1 installed
• Establishes an encrypted, authenticated connection to the Safari Extensions Gallery
For detailed information on the security content of this update, please visit this site: http://support.apple.com/kb/HT1222
Safari 5.0.2 is available via Software Update and also as a standalone installer.
More info and download link here.
Apple today also released Safari 4.1.2 for Tiger which fixes an issue that could prevent users from submitting web forms.