Microsoft announced on Thursday it is releasing an emergency patch for Internet Explorer to fix a zero-day flaw spotted in the wild. The security hole was found in IE6 through IE11, and the company says its update “is fully tested and ready for release for all affected versions of the browser.” While this normally means all supported versions, this time is different. Microsoft is issuing a security update for Windows XP users as well, despite the fact that Windows XP is no longer supported by the company. Here is Microsoft’s reasoning for the decision: “Even though Windows XP is no longer supported by Microsoft and is past the time we normally provide security updates, we’ve decided to provide an update for all versions of Windows XP (including embedded), today. We made this exception based on the proximity to the end of support for Windows XP.”