javascript - Make website support older browsers jQuery calls -


i'm bit stuck here. have website uses jquery 2.1.4 only. figured out won't support older browsers such ie 6, 7 , 8. use jquery many things in website, includes login system, live chat , management functions.

anyway, thinking of implementing jquery 1.11.3 because supports these browsers. thing is, don't know start because don't think add script source jquery 1.11.3 , shall fix all, i'm looking way add won't have change functions or add special functions older browsers.

the jquery methods use $.ajax, $.when , $.then.

i don't think add script source jquery 1.11.3 , shall fix all

you replace existing script source it.

the 2.1.x branch 1.11 branch slow compatibility code old browsers removed. api compatible.


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