Tab tabShow" event no longer firing"

I had some custom javascript that was binding to the “tabShow” event.  

$('#mainTab').on('tabshow', function(e) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <br>&nbsp; &nbsp; if (e.target.id === 'tab1') {<br>&nbsp; &nbsp; //... do stuff<br>&nbsp; &nbsp; }<br>});

Recently, skuid was upgraded to the newest version and this functionality appears to have stopped working.  

Is there a new way to register to this event?