<style> 
.version {
	height: 25px;
    width: 200px;
    border-radius: 5px;
    border: 1px solid #ddd;
}
</style>
<select class="version" id="version" onchange="showContent()">
	<option value="5.0.0">5.0.0</option>
</select>
<script> 
function showContent() {
	var dropdown = document.getElementById("version"); 
	var tabs = document.getElementsByClassName("rwui_tab_content");
	for (var i = 0; i < tabs.length; i++) {
		if (tabs[i].getAttribute("data-name") == dropdown.value) {
			tabs[i].style.display = "";
		}
		else {
			tabs[i].style.display = "none";
		}
	}
}
</script>

Common User 

Release Date: January 31, 2020

Common Endpoint

 Release Date: April 27, 2020

Common Incident 

Release Date: April 27, 2020

Common Problem

Release Date: July 13, 2020

Common Change 

Release Date: July 13, 2020

Common Task 

Release Date: August 8, 2020 

Common Attachment 

Release Date: December 7, 2020

Common Request

Release Date: December 7, 2020

Common Knowledge

Release Date: December 7, 2020