Internet Explorer 9 (32 Bits) Apr 2026

: 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.

: 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. 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"