Run results for: jquery 1.12.4 vs 2.2.4 vs 3.5.0

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36

Browser: Chrome 87

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
jquery 1.12.4	10623.2 Ops/sec
jquery 2.2.4	13768.4 Ops/sec
jquery 3.5.0	12749.6 Ops/sec

HTML Preparation code:

<script src='https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js'></script>
<script>
  var $jq1124 = $.noConflict(true);
</script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
<script>
  var $jq224 = $.noConflict(true);
</script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.0/jquery.min.js"></script>
<script>
  var $jq350 = $.noConflict(true);
</script>
<div>
  <ul id="menu">
    <li class="menu-item">1</li>
    <li class="menu-item">2</li>
    <li class="menu-item">3</li>
    <li class="menu-item">4</li>  
    <li class="menu-item">5</li>  
    <li class="menu-item">6</li>  
    <li class="menu-item">7</li>  
    <li class="menu-item">7</li>  
    <li class="menu-item">7</li>  
    <li class="menu-item">7</li>  
    <li class="menu-item">7</li>  
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li>     <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li>     <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
        <li class="menu-item">7</li> 
    <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  <li class="menu-item">7</li>  
  </ul>
</div>

Script Preparation code:

function tests($) {
    $(".menu-item").eq(2).closest("ul").css({
      "background-color": "red"
    }).parent().css({
      "border": "1px solid blue"
    }).append($("<p></p>").text("Text.").css({
      "background-color": "green"
    })).end().end().remove();
  console.log('tests' + $);
}

Tests:

jquery 1.12.4
tests($jq1124);
jquery 2.2.4
tests($jq224);
jquery 3.5.0
tests($jq350);

Run results for: jquery 1.12.4 vs 2.2.4 vs 3.5.0

jquery 1.12.4

jquery 2.2.4

jquery 3.5.0