While IE9 was available in both 32-bit and 64-bit editions, the 32-bit version was the default and generally recommended choice due to its superior performance at the time.
: Regular support for most versions of IE9 ended on January 12, 2016 , when Microsoft began requiring users to upgrade to the latest version of IE available for their OS.
Internet Explorer 9 (IE9) was a major release in Microsoft's browser history, officially launched on March 14, 2011, during the South by Southwest (SXSW) festival . It marked a significant shift toward modern web standards and high-performance browsing. Core Technical Profile (32-bit)
: It was the first browser to utilize full hardware acceleration via Direct2D and DirectWrite, offloading graphics and text rendering to the GPU for smoother performance. Key Features and Improvements
: It was the first version of IE to achieve a perfect or near-perfect score on the Acid3 test (reaching 100/100 after the test was revised) and introduced support for HTML5, CSS3, and SVG. System Requirements and Lifecycle
IE9 introduced several features that brought it closer to competitors like Chrome and Firefox:
: A long-awaited feature that included a security-enabled manager with the ability to pause and resume transfers.
