Complex sentence: On 26 January 2009, Microsoft released RC1 of Internet Explorer 8 which includes a new partial ClickJacking prevention option: web site developers will be able to add a tag in a page header that will help detect and prevent frame-based UI Redressing.
Split into simpler sentences: On 26 January 2009 Microsoft released RC1 of Internet Explorer 8, which includes a new partial ClickJacking prevention option. Web site developers will be able to add a tag in a page header to help detect and prevent frame-based UI Redressing.