diff --git a/doc/Makefile.sphinx b/doc/Makefile.sphinx
index fc42f290f713..14b31fa3030e 100644
--- a/doc/Makefile.sphinx
+++ b/doc/Makefile.sphinx
@@ -84,8 +84,7 @@ html-release: check-sphinxbuild source
 	@echo
 	@echo "Building HTML documentation"
 	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
-	@chmod -R ugo+rX $(BUILDDIR)
-	@$(COPY_IF_DIFFERENT) util/versionButton.php $(BUILDDIR)/html/versionButton.php
+	@chmod -R ugo+rX $(BUILDDIR)	
 	@echo "ErrorDocument 404 https://chapel-lang.org/docs/$(WEB_DOC_VERSION)/" > $(BUILDDIR)/html/.htaccess
 	@echo copying searchtools.js
 	@cp $(CHPL_MAKE_HOME)/doc/rst/meta/static/searchtools.js $(BUILDDIR)/html/_static
diff --git a/doc/util/versionButton.php b/doc/util/versionButton.php
deleted file mode 100755
index 0f817e4c6986..000000000000
--- a/doc/util/versionButton.php
+++ /dev/null
@@ -1,140 +0,0 @@
-
-<style>
-#versionButton {
-  padding: 4px;
-  border: none;
-  cursor: pointer;
-}
-
-/* Blue */
-.currentVersion {
-  background-color: #36acf9;
-  color: white;
-}
-.currentVersion:hover, .currentVersion:focus {
-  background-color: #2f95d8;
-}
-
-/* Red */
-.oldVersion {
-  background-color: #ff0000;
-  color: white;
-}
-.oldVersion:hover, .oldVersion:focus {
-  background-color: #ff0000;
-}
-
-/* Yellow */
-.preRelease {
-  background-color: #f4df42;
-  color: black;
-}
-.preRelease:hover, .preRelease:focus {
-  background-color: #d3c139;
-  color: black;
-}
-
-#dropContainer {
-  position: relative;
-  display: inline-block;
-  margin-bottom:10px;
-}
-
-#dropDiv {
-  display: none;
-  position: absolute;
-  background-color: #f9f9f9;
-  min-width: 160px;
-  overflow: auto;
-  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
-  z-index: 1;
-  right: 0;
-}
-
-#dropDiv a {
-  color: black;
-  padding: 12px 16px;
-  text-decoration: none;
-  display: block;
-}
-
-.dropdown a:hover {background-color: #f1f1f1}
-
-</style>
-<div id="dropContainer">
-  <button id="versionButton" onclick="toggleDropDown()"></button>
-  <div id="dropDiv">
-  </div>
-</div>
-<script type="text/javascript">
-
-var dropDiv = document.getElementById("dropDiv");
-
-function toggleDropDown() {
-  var dsp = dropDiv.style.display;
-  if (dsp != "block") {
-    dropDiv.style.display = "block";
-  } else {
-    dropDiv.style.display = "none";
-  }
-}
-
-var chplTitle = "<?php echo "$chplTitle";?>";
-
-var pagePath = "<?php echo "$pagename";?>";
-if (pagePath == "") {
-  // If no path is given, default to root of other docs
-  pagePath = "index";
-}
-function dropSetup() {
-  var currentRelease = "2.3"; // what does the public have?
-  var stagedRelease = "2.4";  // is there a release staged but not yet public?
-  var nextRelease = "2.4";    // what's the next release? (on docs/main)
-  var button = document.getElementById("versionButton");
-  // Uses unicode down-pointing triangle
-  var arrow = " &#9660;";
-  button.innerHTML = "version " + chplTitle + arrow;
-
-  // Choose button color
-  if (chplTitle == stagedRelease || chplTitle == nextRelease) {
-    // add pre-release label using a non-breaking hyphen
-    button.innerHTML = "version " + chplTitle + " (pre&#8209;release)" + arrow;
-    button.classList.add("preRelease");
-  } else if (chplTitle == currentRelease) {
-    button.classList.add("currentVersion");
-  } else {
-    // add old release label using a non-blocking space
-    button.innerHTML = "version " + chplTitle + " (old&nbsp;release)" + arrow;
-    button.classList.add("oldVersion");
-  }
-
-  // Clear old links (if any)
-  while (dropDiv.firstChild) {
-    dropDiv.removeChild(dropDiv.firstChild);
-  }
-
-  if (chplTitle != currentRelease) {
-    // Add links to current version of docs
-    var link = document.createElement("a");
-    link.innerHTML = "version "+currentRelease+"<br>(latest release)";
-    link.href = "https://chapel-lang.org/docs/" + pagePath + ".html";
-    dropDiv.append(link);
-  }
-
-  if (!chplTitle.includes(nextRelease)) {
-    // Add links to main version of docs
-    var link = document.createElement("a");
-    link.innerHTML = "version " + nextRelease + "<br>(pre-release)";
-    link.href = "https://chapel-lang.org/docs/main/" + pagePath + ".html";
-    dropDiv.append(link);
-  }
-}
-dropSetup();
-
-// Close the dropdown if the user clicks outside of it
-window.onclick = function(event) {
-  if (!event.target.matches('#versionButton')) {
-    dropDiv.style.display = "none";
-  }
-}
-</script>