IE 6, 7을 지원하는 jQuery버전은 1.12입니다.

https://blog.jquery.com/2014/04/02/browser-support-in-jquery-1-12-and-beyond/

jQuery 1.12: This will be the last release to support Internet Explorer 6 and 7. As of today, no feature requests or bug fixes will be landed for them. Only serious regressions for these browsers will be fixed in patch releases (e.g., 1.12.1). jQuery 1.13 will support IE8 as its minimum browser.