: The 32-bit version featured the new "Chakra" JavaScript engine. It utilized a background thread for Just-In-Time (JIT) compilation , allowing users to interact with pages while the browser generated faster code in the background.
: The interface was redesigned to be minimalistic, featuring a combined address and search bar called the "One Box" . Internet Explorer 9 (32 bits)
: 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 : The 32-bit version featured the new "Chakra"
: 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
: The last regular security update was released on January 14, 2020 , though some versions on Windows Server 2008 remained eligible for Extended Security Updates (ESU) until early 2023.