3 ms·

IE 11 legacy support is a dream compared to having to support IE 8 and lower back in the day. The JS engine on IE 9 was about 10X faster than the one on IE 8.

• alkonaut 7y ago
  I remember thinking "Once IE6 is dead I'll never complain about browsers again". IE11 is still pretty fantastic compared to IE6.
• pjmlp 7y ago
  Well, IE 9 was the first version to have JIT suppport.