Below is from a sample app I generated, from the _Layout.cshtml file.  If you look at the kendo.cdn.telerik.com/2019.3.1023/js/jquery.min.js file, its using a really old version of jQuery.  How can we use a more current version?

    <link href="htt    <link href="https://kendo.cdn.telerik.com/2019.3.1023/styles/kendo.bootstrap-v4.min.css" rel="stylesheet" type="text/css" />

    <script src="https://kendo.cdn.telerik.com/2019.3.1023/js/jquery.min.js"></script>
    <script src="https://kendo.cdn.telerik.com/2019.3.1023/js/jszip.min.js"></script>
    <script src="https://kendo.cdn.telerik.com/2019.3.1023/js/kendo.all.min.js"></script>
    <script src="https://kendo.cdn.telerik.com/2019.3.1023/js/kendo.aspnetmvc.min.js"></script>

Im trying to get bootstrap toasts working in my app that uses the kendo libraries (including jquery 1.x), following along with this example
https://www.w3schools.com/bootstrap4/tryit.asp?filename=trybs_toast&stacked=h

However, when I render the page, the toast is visible immediately, and clicking on the button I get 'toast() is not a function'

The references I am actually using in my _Layout file are

    <link href="https://kendo.cdn.telerik.com/2019.3.1023/styles/kendo.bootstrap-v4.min.css" rel="stylesheet" type="text/css" />
    <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.8.2/css/all.css" integrity="sha384-oS3vJWv+0UjzBfQzYUhtDYW+Pj2yciDJxpsK1OYPAYjqT085Qq/1cq5FLXAZQ7Ay">
    <script src="https://kendo.cdn.telerik.com/2019.3.1023/js/jquery.min.js"></script>
    <script src="https://kendo.cdn.telerik.com/2019.3.1023/js/jszip.min.js"></script>
    <script src="https://kendo.cdn.telerik.com/2019.3.1023/js/kendo.all.min.js"></script>
    <script src="https://kendo.cdn.telerik.com/2019.3.1023/js/kendo.aspnetmvc.min.js"></script>

    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" />
    <link rel="stylesheet" href="~/css/site.css" />
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
    <script src="~/js/site.js"></script>

Hello Randal,

You can use another jQuery version by adding the reference to it instead of the one included when you create a new Telerik project.

<script src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
//<script src="https://kendo.cdn.telerik.com/2020.1.114/js/jquery.min.js"></script>
<script src="https://kendo.cdn.telerik.com/2020.1.114/js/kendo.all.min.js"></script>

As for the error you are receiving, I tested the links from your last reply and I was able to reproduce the problem. I managed to resolve it by referencing a more recent boostrap version. Here is a small Dojo example for reference.

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css">
<script src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
<script src="https://kendo.cdn.telerik.com/2020.1.114/js/jszip.min.js"></script>
<script src="https://kendo.cdn.telerik.com/2020.1.114/js/kendo.all.min.js"></script></head>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script>

I hope the above was helpful. Feel free to contact us whenever you have Kendo related questions.

Regards,
Martin
Progress Telerik