Wordpress still uses jQuery 1.x for fear of wrong compatibility with plugins and themes. They are trying to update it, but you can see that it will take a while yet (sources: one, two, three)

Now I am building a WP template where I have to use latest Bootstrap CSS framework. The problem is that Bootstrap uses the latest jQuery 3.5.1 !

So, will the latest Bootstrap work properly with the default Wordpress jQuery?

Note: I understand that I can register the latest jQuery and unregister the old ones, but this is not recommended as other plugins may use the default WP jQuery

1 Answer 1


Yes - it works fine with BS4 - no conflicts, no issues.

Simple way to test is to install a vanilla WP 5.3.3, create a barebones theme with BS 4 and check the JS console for issues.

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