bootstrap 4 responsive utilities visible / hidden xs sm lg not working

Having an issue with the new responsive utilities hidden / visible classes, when migrating to Bootstrap 4. I am aware that .hidden- classes have been removed from v3 and replaced with .hidden-*-up .hidden-*-down. Using the new .hidden-*-up.hidden-*-down classes but the elements aren't changing to visible/hidden. Can't figure out why.

<div class="col hidden-xs-down">
	<span class="vcard">
		…
	</span>
</div>
<div class="col hidden-lg-down">
	<div class="hidden-sm-down">
     			…
	</div>
	<div class="hidden-xs-down">
     			…
	</div>
</div>

• nothing is hidden in this example, regardless of screen size (Safari, Responsive Design Mode)

With Bootstrap 4 .hidden-* classes were completely removed (yes, they were replaced by hidden-*-* but those classes are also gone from v4 alphas).

Starting with v4-beta, you can combine .d-*-none and .d-*-block classes to achieve the same result.

visible- was removed* as well; instead of using explicit .visible-* classes, make the element visible by not hiding it (again, use combinations of .d-none .d-md-block). Here is the working example:

<div class="col d-none d-sm-block">
    <span class="vcard">
        …
    </span>
</div>
<div class="col d-none d-xl-block">
    <div class="d-none d-md-block">
                …
    </div>
    <div class="d-none d-sm-block">
                …
    </div>
</div>

class="hidden-xs" becomes class="d-none d-sm-block" (or d-none d-sm-inline-block) ...

<span class="d-none d-sm-inline">hidden-xs</span>

<span class="d-none d-sm-inline-block">hidden-xs</span>

An example of Bootstrap 4 responsive utilities:

<div class="d-none d-sm-block"> hidden-xs			
  <div class="d-none d-md-block"> visible-md and up (hidden-sm and down)
    <div class="d-none d-lg-block"> visible-lg and up  (hidden-md and down)
      <div class="d-none d-xl-block"> visible-xl </div>
    </div>
  </div>
</div>
  
<div class="d-sm-none"> eXtra Small <576px </div>
<div class="d-none d-sm-block d-md-none d-lg-none d-xl-none"> SMall ≥576px </div>
<div class="d-none d-md-block d-lg-none d-xl-none"> MeDium ≥768px </div>
<div class="d-none d-lg-block d-xl-none"> LarGe ≥992px </div>
<div class="d-none d-xl-block"> eXtra Large ≥1200px </div>
    
<div class="d-xl-none"> hidden-xl (visible-lg and down)			
  <div class="d-lg-none d-xl-none"> visible-md and down (hidden-lg and up)
    <div class="d-md-none d-lg-none d-xl-none"> visible-sm and down  (or hidden-md and up)
      <div class="d-sm-none"> visible-xs </div>
    </div>
  </div>
</div>

• codepen.io/_yatko/pen/ZJXQxy

Documentation

Screen Size Class

1. Hidden on all .d-none

2. Hidden only on xs .d-none .d-sm-block

3. Hidden only on sm .d-sm-none .d-md-block

4. Hidden only on md .d-md-none .d-lg-block

5. Hidden only on lg .d-lg-none .d-xl-block

6. Hidden only on xl .d-xl-none

7. Visible on all .d-block

8. Visible only on xs .d-block .d-sm-none

9. Visible only on sm .d-none .d-sm-block .d-md-none

10. Visible only on md .d-none .d-md-block .d-lg-none

11. Visible only on lg .d-none .d-lg-block .d-xl-none

12. Visible only on xl .d-none .d-xl-block

Refer this link http://getbootstrap.com/docs/4.0/utilities/display/#hiding-elements

4.5 link: https://getbootstrap.com/docs/4.5/utilities/display/#hiding-elements

Bootstrap 4 (^beta) has changed the classes for responsive hiding/showing elements. See this link for correct classes to use: http://getbootstrap.com/docs/4.0/utilities/display/#hiding-elements

Some version working

<div class="hidden-xs">Only Mobile hidden</div>
<div class="visible-xs">Only Mobile visible</div>

Bootstrap v5.0 +

<div class="d-xs-block d-sm-none">xs <576px</div>
<div class="d-none d-sm-block d-md-none">sm ≥576px</div>
<div class="d-none d-md-block d-lg-none">md ≥768px</div>
<div class="d-none d-lg-block d-xl-none">lg ≥992px</div>
<div class="d-none d-xl-block d-xxl-none">xl ≥1200px</div>
<div class="d-none d-xxl-block">xxl ≥1400px</div>

*new Extra extra large xxl ≥1400px breakpoint