diff --git a/core/src/main/java/hudson/model/ManageJenkinsAction.java b/core/src/main/java/hudson/model/ManageJenkinsAction.java
index a0eda48159db..186406fcd02a 100644
--- a/core/src/main/java/hudson/model/ManageJenkinsAction.java
+++ b/core/src/main/java/hudson/model/ManageJenkinsAction.java
@@ -27,7 +27,6 @@
 import hudson.Extension;
 import hudson.Util;
 import java.io.IOException;
-import jenkins.management.Badge;
 import jenkins.model.Jenkins;
 import jenkins.model.ModelObjectWithContextMenu;
 import org.apache.commons.jelly.JellyException;
@@ -79,13 +78,13 @@ public ContextMenu doContextMenu(StaplerRequest request, StaplerResponse respons
      * menu.
      */
     @Restricted(NoExternalUse.class)
-    public void addContextMenuItem(ContextMenu menu, String url, String icon, String iconXml, String text, boolean post, boolean requiresConfirmation, Badge badge) {
+    public void addContextMenuItem(ContextMenu menu, String url, String icon, String iconXml, String text, boolean post, boolean requiresConfirmation) {
         if (Stapler.getCurrentRequest().findAncestorObject(this.getClass()) != null || !Util.isSafeToRedirectTo(url)) {
             // Default behavior if the URL is absolute or scheme-relative, or the current object is an ancestor (i.e. would resolve correctly)
-            menu.add(url, icon, iconXml, text, post, requiresConfirmation, badge);
+            menu.add(url, icon, iconXml, text, post, requiresConfirmation);
             return;
         }
         // If neither is the case, rewrite the relative URL to point to inside the /manage/ URL space
-        menu.add("manage/" + url, icon, iconXml, text, post, requiresConfirmation, badge);
+        menu.add("manage/" + url, icon, iconXml, text, post, requiresConfirmation);
     }
 }
diff --git a/core/src/main/java/hudson/model/UpdateCenter.java b/core/src/main/java/hudson/model/UpdateCenter.java
index b9ca1d2001b8..d666e3690f57 100644
--- a/core/src/main/java/hudson/model/UpdateCenter.java
+++ b/core/src/main/java/hudson/model/UpdateCenter.java
@@ -106,7 +106,6 @@
 import jenkins.MissingDependencyException;
 import jenkins.RestartRequiredException;
 import jenkins.install.InstallUtil;
-import jenkins.management.Badge;
 import jenkins.model.Jenkins;
 import jenkins.security.stapler.StaplerDispatchable;
 import jenkins.util.SystemProperties;
@@ -378,52 +377,6 @@ public InstallationJob getJob(Plugin plugin) {
         return null;
     }
 
-    @Restricted(NoExternalUse.class)
-    public Badge getBadge() {
-        if (!isSiteDataReady()) {
-            // Do not display message during this page load, but possibly later.
-            return null;
-        }
-        List<Plugin> plugins = getUpdates();
-        int size = plugins.size();
-        if (size > 0) {
-            StringBuilder tooltip = new StringBuilder();
-            Badge.Severity severity = Badge.Severity.WARNING;
-            int securityFixSize = (int) plugins.stream().filter(plugin -> plugin.fixesSecurityVulnerabilities()).count();
-            int incompatibleSize = (int) plugins.stream().filter(plugin -> !plugin.isCompatibleWithInstalledVersion()).count();
-            if (size > 1) {
-                tooltip.append(jenkins.management.Messages.PluginsLink_updatesAvailable(size));
-            } else {
-                tooltip.append(jenkins.management.Messages.PluginsLink_updateAvailable());
-            }
-            switch (incompatibleSize) {
-                case 0:
-                    break;
-                case 1:
-                    tooltip.append("\n").append(jenkins.management.Messages.PluginsLink_incompatibleUpdateAvailable());
-                    break;
-                default:
-                    tooltip.append("\n").append(jenkins.management.Messages.PluginsLink_incompatibleUpdatesAvailable(incompatibleSize));
-                    break;
-            }
-            switch (securityFixSize) {
-                case 0:
-                    break;
-                case 1:
-                    tooltip.append("\n").append(jenkins.management.Messages.PluginsLink_securityUpdateAvailable());
-                    severity = Badge.Severity.DANGER;
-                    break;
-                default:
-                    tooltip.append("\n").append(jenkins.management.Messages.PluginsLink_securityUpdatesAvailable(securityFixSize));
-                    severity = Badge.Severity.DANGER;
-                    break;
-            }
-            return new Badge(Integer.toString(size), tooltip.toString(), severity);
-        }
-        return null;
-
-    }
-
     /**
      * Get the current connection status.
      * <p>
diff --git a/core/src/main/java/jenkins/management/Badge.java b/core/src/main/java/jenkins/management/Badge.java
index 67528ad56b32..3727ed391573 100644
--- a/core/src/main/java/jenkins/management/Badge.java
+++ b/core/src/main/java/jenkins/management/Badge.java
@@ -29,8 +29,6 @@
 import hudson.model.AdministrativeMonitor;
 import hudson.model.ManagementLink;
 import java.util.Locale;
-import org.kohsuke.stapler.export.Exported;
-import org.kohsuke.stapler.export.ExportedBean;
 
 /**
  *  Definition of a badge that can be returned by a {@link ManagementLink} implementation.
@@ -50,7 +48,6 @@
  *
  *  @since 2.385
  */
-@ExportedBean
 public class Badge {
 
     private final String text;
@@ -78,7 +75,6 @@ public Badge(@NonNull String text, @NonNull String tooltip, @NonNull Severity se
      *
      * @return badge text
      */
-    @Exported(visibility = 999)
     public String getText() {
         return text;
     }
@@ -88,7 +84,6 @@ public String getText() {
      *
      * @return tooltip
      */
-    @Exported(visibility = 999)
     public String getTooltip() {
         return tooltip;
     }
diff --git a/core/src/main/java/jenkins/management/PluginsLink.java b/core/src/main/java/jenkins/management/PluginsLink.java
index 0db05bfc8d43..f93579275202 100644
--- a/core/src/main/java/jenkins/management/PluginsLink.java
+++ b/core/src/main/java/jenkins/management/PluginsLink.java
@@ -28,7 +28,9 @@
 import hudson.Extension;
 import hudson.model.ManagementLink;
 import hudson.model.UpdateCenter;
+import hudson.model.UpdateSite.Plugin;
 import hudson.security.Permission;
+import java.util.List;
 import jenkins.model.Jenkins;
 import org.jenkinsci.Symbol;
 
@@ -73,6 +75,46 @@ public Category getCategory() {
     @Override
     public Badge getBadge() {
         final UpdateCenter updateCenter = Jenkins.get().getUpdateCenter();
-        return updateCenter.getBadge();
+        if (!updateCenter.isSiteDataReady()) {
+            // Do not display message during this page load, but possibly later.
+            return null;
+        }
+        List<Plugin> plugins = updateCenter.getUpdates();
+        int size = plugins.size();
+        if (size > 0) {
+            StringBuilder tooltip = new StringBuilder();
+            Badge.Severity severity = Badge.Severity.WARNING;
+            int securityFixSize = (int) plugins.stream().filter(plugin -> plugin.fixesSecurityVulnerabilities()).count();
+            int incompatibleSize = (int) plugins.stream().filter(plugin -> !plugin.isCompatibleWithInstalledVersion()).count();
+            if (size > 1) {
+                tooltip.append(Messages.PluginsLink_updatesAvailable(size));
+            } else {
+                tooltip.append(Messages.PluginsLink_updateAvailable());
+            }
+            switch (incompatibleSize) {
+                case 0:
+                    break;
+                case 1:
+                    tooltip.append("\n").append(Messages.PluginsLink_incompatibleUpdateAvailable());
+                    break;
+                default:
+                    tooltip.append("\n").append(Messages.PluginsLink_incompatibleUpdatesAvailable(incompatibleSize));
+                    break;
+            }
+            switch (securityFixSize) {
+                case 0:
+                    break;
+                case 1:
+                    tooltip.append("\n").append(Messages.PluginsLink_securityUpdateAvailable());
+                    severity = Badge.Severity.DANGER;
+                    break;
+                default:
+                    tooltip.append("\n").append(Messages.PluginsLink_securityUpdatesAvailable(securityFixSize));
+                    severity = Badge.Severity.DANGER;
+                    break;
+            }
+            return new Badge(Integer.toString(size), tooltip.toString(), severity);
+        }
+        return null;
     }
 }
diff --git a/core/src/main/java/jenkins/model/ModelObjectWithContextMenu.java b/core/src/main/java/jenkins/model/ModelObjectWithContextMenu.java
index 52b49131ad79..bc45b1a3cb51 100644
--- a/core/src/main/java/jenkins/model/ModelObjectWithContextMenu.java
+++ b/core/src/main/java/jenkins/model/ModelObjectWithContextMenu.java
@@ -17,7 +17,6 @@
 import java.util.Collection;
 import java.util.List;
 import javax.servlet.ServletException;
-import jenkins.management.Badge;
 import org.apache.commons.jelly.JellyContext;
 import org.apache.commons.jelly.JellyException;
 import org.apache.commons.jelly.JellyTagException;
@@ -150,19 +149,6 @@ public ContextMenu add(String url, String icon, String iconXml, String text, boo
             return this;
         }
 
-        /** @since TODO */
-        public ContextMenu add(String url, String icon, String iconXml, String text, boolean post, boolean requiresConfirmation, Badge badge) {
-            if (text != null && icon != null && url != null) {
-                MenuItem item = new MenuItem(url, icon, text);
-                item.iconXml = iconXml;
-                item.post = post;
-                item.requiresConfirmation = requiresConfirmation;
-                item.badge = badge;
-                items.add(item);
-            }
-            return this;
-        }
-
         /**
          * Add a header row (no icon, no URL, rendered in header style).
          *
@@ -331,8 +317,6 @@ class MenuItem {
         public boolean requiresConfirmation;
 
 
-        private Badge badge;
-
         /**
          * The type of menu item
          * @since 2.340
@@ -353,15 +337,6 @@ public String getIconXml() {
             return iconXml;
         }
 
-        /**
-         * The badge to display for the context menu item
-         * @since TODO
-         */
-        @Exported
-        public Badge getBadge() {
-            return badge;
-        }
-
         public MenuItem(String url, String icon, String displayName) {
             withUrl(url).withIcon(icon).withDisplayName(displayName);
         }
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel.jelly b/core/src/main/resources/hudson/PluginManager/sidepanel.jelly
index 6c45382c9e03..253cdb28f595 100644
--- a/core/src/main/resources/hudson/PluginManager/sidepanel.jelly
+++ b/core/src/main/resources/hudson/PluginManager/sidepanel.jelly
@@ -29,7 +29,7 @@ THE SOFTWARE.
 <j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:f="/lib/form" xmlns:i="jelly:fmt">
   <l:side-panel>
     <l:tasks>
-      <l:task href="${rootURL}/manage/pluginManager/" icon="symbol-download" title="${%Updates}" badge="${app.updateCenter.badge}"/>
+      <l:task href="${rootURL}/manage/pluginManager/" icon="symbol-download" title="${%Updates}"/>
       <l:task href="${rootURL}/manage/pluginManager/available" icon="symbol-shopping-bag" title="${%Available plugins}"/>
       <l:task href="${rootURL}/manage/pluginManager/installed" icon="symbol-plugins" title="${%Installed plugins}"/>
       <l:task href="${rootURL}/manage/pluginManager/advanced" icon="symbol-settings" title="${%Advanced settings}"/>
diff --git a/core/src/main/resources/hudson/model/ManageJenkinsAction/index.jelly b/core/src/main/resources/hudson/model/ManageJenkinsAction/index.jelly
index 79cadc127ca9..f386193a3a40 100644
--- a/core/src/main/resources/hudson/model/ManageJenkinsAction/index.jelly
+++ b/core/src/main/resources/hudson/model/ManageJenkinsAction/index.jelly
@@ -60,7 +60,7 @@ THE SOFTWARE.
               <j:set var="iconXml">
                 <l:icon src="${m.iconFileName}" />
               </j:set>
-              ${taskTags!=null and attrs.contextMenu!='false' ? it.addContextMenuItem(taskTags, m.urlName, iconSrc, iconXml, m.displayName, m.requiresPOST, m.requiresConfirmation, m.badge) : null}
+              ${taskTags!=null and attrs.contextMenu!='false' ? it.addContextMenuItem(taskTags, m.urlName, iconSrc, iconXml, m.displayName, m.requiresPOST, m.requiresConfirmation) : null}
               <j:choose>
                 <j:when test="${m.requiresConfirmation}">
                   <l:confirmationLink href="${m.urlName}" post="${m.requiresPOST}" message="${%are.you.sure(m.displayName)}">
diff --git a/core/src/main/resources/lib/layout/breadcrumbs.js b/core/src/main/resources/lib/layout/breadcrumbs.js
index 82ba369531cb..9bec866957f1 100644
--- a/core/src/main/resources/lib/layout/breadcrumbs.js
+++ b/core/src/main/resources/lib/layout/breadcrumbs.js
@@ -22,51 +22,15 @@ window.breadcrumbs = (function () {
   var logger = function () {};
   // logger = function() { console.log.apply(console,arguments) };  // uncomment this line to enable logging
 
-  // TODO - Use util/security.js xmlEscape in #7474
-  function xmlEscape(str) {
-    if (!str) {
-      return;
-    }
-
-    return str.replace(/[<>&'"]/g, (match) => {
-      switch (match) {
-        case "<":
-          return "&lt;";
-        case ">":
-          return "&gt;";
-        case "&":
-          return "&amp;";
-        case "'":
-          return "&apos;";
-        case '"':
-          return "&quot;";
-      }
-    });
-  }
-
-  function makeMenuHtml(icon, iconXml, displayName, badge) {
+  function makeMenuHtml(icon, iconXml, displayName) {
     var displaynameSpan = "<span>" + displayName + "</span>";
-    let badgeText;
-    let badgeTooltip;
-    if (badge) {
-      badgeText = xmlEscape(badge.text);
-      badgeTooltip = xmlEscape(badge.tooltip);
-    }
-    const badgeSpan =
-      badge === null
-        ? ""
-        : `<span class="yui-menu-badge" tooltip="${badgeTooltip}">${badgeText}</span>`;
 
     if (iconXml != null) {
-      return iconXml + displaynameSpan + badgeSpan;
+      return iconXml + displaynameSpan;
     }
 
     if (icon === null) {
-      return (
-        "<span style='margin: 2px 4px 2px 2px;' />" +
-        displaynameSpan +
-        badgeSpan
-      );
+      return "<span style='margin: 2px 4px 2px 2px;' />" + displaynameSpan;
     }
 
     // TODO: move this to the API response in a clean way
@@ -77,13 +41,11 @@ window.breadcrumbs = (function () {
           icon +
           "' />" +
           "</svg>" +
-          displaynameSpan +
-          badgeSpan
+          displaynameSpan
       : "<img src='" +
           icon +
           "' width=24 height=24 style='margin: 2px 4px 2px 2px;' alt=''>" +
-          displaynameSpan +
-          badgeSpan;
+          displaynameSpan;
   }
 
   Event.observe(window, "load", function () {
@@ -194,8 +156,6 @@ window.breadcrumbs = (function () {
       menu.addItems(items);
       menu.render("breadcrumb-menu-target");
       menu.show();
-
-      Behaviour.applySubtree(menu.body);
     }
 
     // ignore the currently pending call
@@ -220,20 +180,14 @@ window.breadcrumbs = (function () {
                 e.text = makeMenuHtml(
                   e.icon,
                   e.iconXml,
-                  "<span class='header'>" + e.displayName + "</span>",
-                  e.badge
+                  "<span class='header'>" + e.displayName + "</span>"
                 );
                 e.disabled = true;
               } else if (e.type === "SEPARATOR") {
                 e.text = "<span class='separator'>--</span>";
                 e.disabled = true;
               } else {
-                e.text = makeMenuHtml(
-                  e.icon,
-                  e.iconXml,
-                  e.displayName,
-                  e.badge
-                );
+                e.text = makeMenuHtml(e.icon, e.iconXml, e.displayName);
               }
               if (e.subMenu != null) {
                 e.subMenu = {
diff --git a/core/src/main/resources/lib/layout/task.jelly b/core/src/main/resources/lib/layout/task.jelly
index 838602c0c7a8..a9f7abc9291f 100644
--- a/core/src/main/resources/lib/layout/task.jelly
+++ b/core/src/main/resources/lib/layout/task.jelly
@@ -75,9 +75,6 @@ THE SOFTWARE.
       Generally used with post="true".
       (onclick supersedes this except in the context menu.)
     </st:attribute>
-    <st:attribute name="badge" since="TODO">
-      If set, displays the value as a small badge on the right side of the sidepanel item.
-    </st:attribute>
     <st:attribute name="confirmationMessage" since="1.512">
       Message to use for confirmation, if requested; defaults to title.
     </st:attribute>
@@ -136,11 +133,6 @@ THE SOFTWARE.
                 <l:icon src="${icon}" />
               </span>
               <span class="task-link-text">${title}</span>
-              <j:if test="${attrs.badge != null}">
-                <span class="task-icon-badge" tooltip="${attrs.badge.tooltip}">
-                  ${attrs.badge.text}
-                </span>
-              </j:if>
             </span>
           </span>
         </div>
@@ -172,11 +164,6 @@ THE SOFTWARE.
                     <l:icon src="${icon}" />
                   </span>
                   <span>${title}</span>
-                  <j:if test="${attrs.badge != null}">
-                    <span class="task-icon-badge" tooltip="${attrs.badge.tooltip}">
-                      ${attrs.badge.text}
-                    </span>
-                  </j:if>
                 </l:confirmationLink>
               </j:when>
 
@@ -186,11 +173,6 @@ THE SOFTWARE.
                     <l:icon src="${icon}" />
                   </span>
                   <span class="task-link-text">${title}</span>
-                  <j:if test="${attrs.badge != null}">
-                    <span class="task-icon-badge" tooltip="${attrs.badge.tooltip}">
-                      ${attrs.badge.text}
-                    </span>
-                  </j:if>
                 </a>
               </j:otherwise>
             </j:choose>
diff --git a/war/src/main/less/base/yui-compatibility.less b/war/src/main/less/base/yui-compatibility.less
index 25d30e2f0202..8c568790ac06 100644
--- a/war/src/main/less/base/yui-compatibility.less
+++ b/war/src/main/less/base/yui-compatibility.less
@@ -230,18 +230,3 @@ div.yahooTree td {
 .yui-panel .bd {
   background-color: var(--background) !important;
 }
-
-.yui-menu-badge {
-  position: relative;
-  margin-left: auto;
-  font-weight: 600;
-
-  &::before {
-    content: "";
-    position: absolute;
-    inset: 0 -0.375rem;
-    background: var(--text-color-secondary);
-    opacity: 0.1;
-    border-radius: 100vmax;
-  }
-}
diff --git a/war/src/main/less/modules/side-panel-tasks.less b/war/src/main/less/modules/side-panel-tasks.less
index 08bbb8e7427c..28f80e65395c 100644
--- a/war/src/main/less/modules/side-panel-tasks.less
+++ b/war/src/main/less/modules/side-panel-tasks.less
@@ -106,6 +106,10 @@
     }
   }
 
+  .task-link-text {
+    display: contents;
+  }
+
   .task-link-text {
     display: contents;
     word-break: break-word;