Greetings.
I just attempted to go from version 3.7.0 t0 3.8.2, and was trying a known working html to be sure everything still works.
After tabbing out of a jqxDateTimeInput, I received the following in the Firefox console:

If the image does not appear, here is the text:
ReferenceError: event is not defined
…rn false}else{if(o==40){this.spinDown();return false}}if(o==9){if(event.shiftKey… jqxdate…nput.js (line 7, col 75379)
——————————————-^
I was going to include my code, but the example on your demo page does (nearly) the same thing. Just go to your demo page, select jqxDateTimeInput, default functionality and set the focus to the first of the three examples. Tabbing out of each one produces the error for each. The indicated column number in the js file is different, but the same cause.
Are there now additional js files that need to be included?
Thank you.