: 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.
: Interestingly, the 64-bit version of IE9 lacked this JIT compiler, making it up to four times slower than its 32-bit counterpart in JavaScript benchmarks.
: 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 Internet Explorer 9 (32 bits)
: A long-awaited feature that included a security-enabled manager with the ability to pause and resume transfers.
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
: 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
: The interface was redesigned to be minimalistic, featuring a combined address and search bar called the "One Box" . System Requirements and Lifecycle : A long-awaited feature
: Users could drag a website favicon to the Windows taskbar to "pin" it, allowing the site to function more like a standalone desktop application.