diff --git a/core/src/main/java/hudson/PluginManager.java b/core/src/main/java/hudson/PluginManager.java
index 57247738d1..a904b86c1b 100644
--- a/core/src/main/java/hudson/PluginManager.java
+++ b/core/src/main/java/hudson/PluginManager.java
@@ -154,6 +154,7 @@ import org.kohsuke.stapler.HttpRedirect;
 import org.kohsuke.stapler.HttpResponse;
 import org.kohsuke.stapler.HttpResponses;
 import org.kohsuke.stapler.QueryParameter;
+import org.kohsuke.stapler.StaplerFallback;
 import org.kohsuke.stapler.StaplerOverridable;
 import org.kohsuke.stapler.StaplerProxy;
 import org.kohsuke.stapler.StaplerRequest;
@@ -1386,6 +1387,27 @@ public abstract class PluginManager extends AbstractModelObject implements OnMas
         return !("adopt-this-plugin".equals(label) || "deprecated".equals(label));
     }
 
+    /**
+     * This allows "Update Center" to live at the URL
+     * {@code /pluginManager/updates/} in addition to its {@code /updateCenter/}
+     * URL which is provided by {@link jenkins.model.Jenkins#getUpdateCenter()}.
+     * For purposes of Stapler, this object is the current item serving the
+     * view, and since this is not a {@link hudson.model.ModelObject}, it does
+     * not appear as an additional breadcrumb and only the "Plugin Manager"
+     * breadcrumb is shown.
+     */
+    @Restricted(NoExternalUse.class)
+    public static class UpdateCenterProxy implements StaplerFallback {
+        @Override
+        public Object getStaplerFallback() {
+            return Jenkins.get().getUpdateCenter();
+        }
+    }
+
+    public UpdateCenterProxy getUpdates() {
+        return new UpdateCenterProxy();
+    }
+
     @Restricted(NoExternalUse.class)
     public HttpResponse doPluginsSearch(@QueryParameter String query, @QueryParameter Integer limit) {
         List<JSONObject> plugins = new ArrayList<>();
@@ -1593,7 +1615,7 @@ public abstract class PluginManager extends AbstractModelObject implements OnMas
         boolean dynamicLoad = req.getParameter("dynamicLoad") != null;
         install(plugins, dynamicLoad);
 
-        rsp.sendRedirect("../updateCenter/");
+        rsp.sendRedirect("updates/");
     }
 
     /**
@@ -1898,7 +1920,7 @@ public abstract class PluginManager extends AbstractModelObject implements OnMas
                     element("url", t.toURI().toString()).
                     element("dependencies", dependencies);
             new UpdateSite(UpdateCenter.ID_UPLOAD, null).new Plugin(UpdateCenter.ID_UPLOAD, cfg).deploy(true);
-            return new HttpRedirect("../updateCenter");
+            return new HttpRedirect("updates/");
         } catch (FileUploadException e) {
             throw new ServletException(e);
         }
@@ -2124,7 +2146,7 @@ public abstract class PluginManager extends AbstractModelObject implements OnMas
     @RequirePOST
     public HttpResponse doInstallNecessaryPlugins(StaplerRequest req) throws IOException {
         prevalidateConfig(req.getInputStream());
-        return HttpResponses.redirectViaContextPath("updateCenter");
+        return HttpResponses.redirectViaContextPath("updates/");
     }
 
     /**
diff --git a/core/src/main/resources/hudson/PluginManager/advanced.jelly b/core/src/main/resources/hudson/PluginManager/advanced.jelly
index 9a90b4a893..15853cc472 100644
--- a/core/src/main/resources/hudson/PluginManager/advanced.jelly
+++ b/core/src/main/resources/hudson/PluginManager/advanced.jelly
@@ -28,15 +28,14 @@ THE SOFTWARE.
 <?jelly escape-by-default='true'?>
 <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">
-    <l:layout title="${%Advanced Settings} - ${%Plugin Manager}" permission="${app.SYSTEM_READ}">
+    <l:layout title="${%Advanced settings} - ${%Plugin Manager}" permission="${app.SYSTEM_READ}">
         <j:set var="readOnlyMode" value="${!app.hasPermission(app.ADMINISTER)}"/>
 
-        <l:app-bar title="${%Plugin Manager}"/>
+        <l:app-bar title="${%Advanced settings}"/>
 
-        <st:include page="sidepanel.jelly"/>
+      <st:include page="sidepanel.jelly"/>
 
         <l:main-panel>
-            <local:tabBar page="advanced" xmlns:local="/hudson/PluginManager"/>
           <div class="jenkins-form">
             <section class="jenkins-section jenkins-!-margin-bottom-5">
                 <h2 class="jenkins-section__title">${%HTTP Proxy Configuration}</h2>
diff --git a/core/src/main/resources/hudson/PluginManager/available.jelly b/core/src/main/resources/hudson/PluginManager/available.jelly
index 8d8e4ab7a3..6b7d573666 100644
--- a/core/src/main/resources/hudson/PluginManager/available.jelly
+++ b/core/src/main/resources/hudson/PluginManager/available.jelly
@@ -27,31 +27,30 @@ THE SOFTWARE.
 -->
 <?jelly escape-by-default='true'?>
 <j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:l="/lib/layout" xmlns:f="/lib/form">
-  <l:layout title="${%Available Plugins} - ${%Plugin Manager}" permission="${app.SYSTEM_READ}">
-    <j:set var="page" value="available"/>
+  <l:layout title="${%Available plugins} - ${%Plugin Manager}" permission="${app.SYSTEM_READ}">
 
-    <l:app-bar title="${%Plugin Manager}" />
+    <l:app-bar title="${%Plugins}" />
 
     <st:include page="sidepanel.jelly"/>
 
     <l:main-panel>
+      <div class="jenkins-app-bar jenkins-app-bar--sticky">
+        <div class="jenkins-app-bar__content">
+          <div class="app-plugin-manager__search">
+            <span class="app-plugin-manager__search__icon">
+              <l:icon src="symbol-search"/>
+            </span>
+            <input type="search"
+                   placeholder="Search available plugins"
+                   id="filter-box"
+                   value="${request.getParameter('filter')}" />
+          </div>
+        </div>
+      </div>
+
       <script src="${resURL}/jsbundles/plugin-manager-ui.js" type="text/javascript"/>
 
       <form method="post" action="install">
-        <local:tabBar page="${page}" xmlns:local="/hudson/PluginManager"/>
-
-        <div class="jenkins-form-item jenkins-search">
-          <input
-            class="jenkins-search__input"
-            type="search"
-            id="filter-box"
-            value="${request.getParameter('filter')}"
-            placeholder="${%Search}"/>
-          <div class="jenkins-search__icon">
-            <l:icon src="symbol-search"/>
-          </div>
-        </div>
-
         <table id="plugins" class="jenkins-table sortable"
                data-hasAdmin="${h.hasPermission(app.ADMINISTER)}">
           <thead>
diff --git a/core/src/main/resources/hudson/PluginManager/installed.jelly b/core/src/main/resources/hudson/PluginManager/installed.jelly
index 96650d97f0..9db786164d 100644
--- a/core/src/main/resources/hudson/PluginManager/installed.jelly
+++ b/core/src/main/resources/hudson/PluginManager/installed.jelly
@@ -27,14 +27,28 @@ THE SOFTWARE.
 -->
 <?jelly escape-by-default='true'?>
 <j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:l="/lib/layout" xmlns:s="/lib/form">
-  <l:layout title="${%Installed Plugins} - ${%Plugin Manager}" permission="${app.SYSTEM_READ}">
+  <l:layout title="${%Installed plugins} - ${%Plugin Manager}" permission="${app.SYSTEM_READ}">
     <j:set var="readOnlyMode" value="${!app.hasPermission(app.ADMINISTER)}"/>
 
-    <l:app-bar title="${%Plugin Manager}" />
+    <l:app-bar title="${%Plugins}" />
 
     <st:include page="sidepanel.jelly"/>
 
     <l:main-panel>
+      <div class="jenkins-app-bar jenkins-app-bar--sticky">
+        <div class="jenkins-app-bar__content">
+          <div class="app-plugin-manager__search">
+            <span class="app-plugin-manager__search__icon">
+              <l:icon src="symbol-search"/>
+            </span>
+            <input type="search"
+                   placeholder="Search installed plugins"
+                   id="filter-box"
+                   value="${request.getParameter('filter')}" />
+          </div>
+        </div>
+      </div>
+
       <st:adjunct includes="hudson.PluginManager._table"/>
 
       <j:if test="${app.updateCenter.isRestartRequiredForCompletion()}">
@@ -53,20 +67,6 @@ THE SOFTWARE.
            data-detached-possible-dependents="${%detached-possible-dependents}"
       />
 
-      <local:tabBar page="installed" xmlns:local="/hudson/PluginManager" />
-
-      <div class="jenkins-form-item jenkins-search">
-        <input
-          class="jenkins-search__input"
-          type="search"
-          id="filter-box"
-          value="${request.getParameter('filter')}"
-          placeholder="${filtered == 'true' ? '%Search' : '%Filter'}"/>
-        <div class="jenkins-search__icon">
-          <l:icon src="symbol-search"/>
-        </div>
-      </div>
-
       <table id="plugins" class="jenkins-table sortable">
         <j:choose>
           <j:when test="${empty(app.pluginManager.plugins) and empty(app.pluginManager.failedPlugins)}">
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel.groovy b/core/src/main/resources/hudson/PluginManager/sidepanel.groovy
deleted file mode 100644
index f117a48fb1..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel.groovy
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * The MIT License
- *
- * Copyright (c) 2011, CloudBees, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-package hudson.PluginManager
-l=namespace(lib.LayoutTagLib)
-
-l.header()
-l.side_panel {
-    l.tasks {
-        if (!app.updateCenter.jobs.isEmpty()) {
-            l.task(icon: "symbol-plugins", href: "${rootURL}/manage/pluginManager/", title:_("Plugin Manager"))
-            l.task(icon: "symbol-download", href: "${rootURL}/manage/updateCenter/", title:_("Update Center"))
-        }
-    }
-}
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar.jelly b/core/src/main/resources/hudson/PluginManager/sidepanel.jelly
similarity index 60%
rename from core/src/main/resources/hudson/PluginManager/tabBar.jelly
rename to core/src/main/resources/hudson/PluginManager/sidepanel.jelly
index 2a0419b876..253cdb28f5 100644
--- a/core/src/main/resources/hudson/PluginManager/tabBar.jelly
+++ b/core/src/main/resources/hudson/PluginManager/sidepanel.jelly
@@ -1,7 +1,7 @@
 <!--
 The MIT License
 
-Copyright (c) 2004-2010, Sun Microsystems, Inc., Kohsuke Kawaguchi
+Copyright (c) 2022, Jenkins contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -23,17 +23,19 @@ THE SOFTWARE.
 -->
 
 <!--
-  List of available new plugins
+  Sidepanel component for Plugins Manager
 -->
 <?jelly escape-by-default='true'?>
-<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">
-  <st:documentation>
-    <st:attribute name="page"/>
-  </st:documentation>
-  <l:tabBar>
-    <l:tab name="${%Updates}" active="${page=='updates'}" href="." />
-    <l:tab name="${%Available}" active="${page=='available'}" href="./available" />
-    <l:tab name="${%Installed}" active="${page=='installed'}" href="./installed" />
-    <l:tab name="${%Advanced}" active="${page=='advanced'}" href="./advanced" />
-  </l:tabBar>
+<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}"/>
+      <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}"/>
+      <j:if test="${!app.updateCenter.jobs.isEmpty()}">
+        <l:task href="${rootURL}/manage/pluginManager/updates/" icon="symbol-list" title="${%Download progress}"/>
+      </j:if>
+    </l:tasks>
+  </l:side-panel>
 </j:jelly>
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_bg.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_bg.properties
deleted file mode 100644
index d3824da7e1..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_bg.properties
+++ /dev/null
@@ -1,28 +0,0 @@
-# The MIT License
-#
-# Bulgarian translation: Copyright (c) 2015, 2016, Alexander Shopov <ash@kambanaria.org>
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=\
- Към основния екран
-Manage\ Jenkins=\
- Управление на Jenkins
-Update\ Center=\
- Сайт за обновления
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_ca.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_ca.properties
deleted file mode 100644
index 90a495ba6f..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_ca.properties
+++ /dev/null
@@ -1,23 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2011, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Manage\ Jenkins=Configuració de Jenkins
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_cs.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_cs.properties
deleted file mode 100644
index 89cb3ae4bb..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_cs.properties
+++ /dev/null
@@ -1,23 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2011, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Manage\ Jenkins=Administrace
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_da.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_da.properties
deleted file mode 100644
index 3e9d6089d0..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_da.properties
+++ /dev/null
@@ -1,25 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2011, Sun Microsystems, Inc. Kohsuke Kawaguchi. Knud Poulsen.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Update\ Center=Opdateringscenter
-Back\ to\ Dashboard=Tilbage til oversigtssiden
-Manage\ Jenkins=Bestyr Jenkins
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_de.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_de.properties
deleted file mode 100644
index 07533e69b0..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_de.properties
+++ /dev/null
@@ -1,25 +0,0 @@
-# The MIT License
-# 
-# Copyright (c) 2004-2011, Sun Microsystems, Inc., Kohsuke Kawaguchi, Simon Wiest
-# 
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=Zurück zur Übersicht
-Manage\ Jenkins=Jenkins verwalten
-Update\ Center=Update-Center
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_el.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_el.properties
deleted file mode 100644
index f88f01dcf7..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_el.properties
+++ /dev/null
@@ -1,23 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2011, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Manage\ Jenkins=Διαχείριση Jenkins
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_es.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_es.properties
deleted file mode 100644
index 663ae1b701..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_es.properties
+++ /dev/null
@@ -1,25 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2011, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=Volver al Panel de control
-Manage\ Jenkins=Administrar Jenkins
-Update\ Center=Centro de actualizaciones
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_fi.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_fi.properties
deleted file mode 100644
index 5a4810f206..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_fi.properties
+++ /dev/null
@@ -1,24 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2011, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=Takaisin kojetauluun
-Manage\ Jenkins=Hallitse Jenkinsia
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_fr.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_fr.properties
deleted file mode 100644
index 693dd84373..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_fr.properties
+++ /dev/null
@@ -1,24 +0,0 @@
-# The MIT License
-# 
-# Copyright (c) 2004-2011, Sun Microsystems, Inc., Kohsuke Kawaguchi, Eric Lefevre-Ardant
-# 
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=Retour au tableau de bord
-Manage\ Jenkins=Administrer Jenkins
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_hu.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_hu.properties
deleted file mode 100644
index 57a6c8e754..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_hu.properties
+++ /dev/null
@@ -1,24 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2011, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=Vissza
-Manage\ Jenkins=Jenkins Kezelése
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_it.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_it.properties
deleted file mode 100644
index 2e870257f8..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_it.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Italian localization plugin for Jenkins
-# Copyright © 2020 Alessandro Menti
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=Torna al cruscotto
-Manage\ Jenkins=Gestisci Jenkins
-Update\ Center=Centro aggiornamenti
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_ja.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_ja.properties
deleted file mode 100644
index 55161ee906..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_ja.properties
+++ /dev/null
@@ -1,25 +0,0 @@
-# The MIT License
-# 
-# Copyright (c) 2004-2011, Sun Microsystems, Inc., Kohsuke Kawaguchi, Seiji Sogabe
-# 
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=ダッシュボードへ戻る
-Manage\ Jenkins=Jenkinsの管理
-Update\ Center=アップデートセンター
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_ko.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_ko.properties
deleted file mode 100644
index e88ae8e2a4..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_ko.properties
+++ /dev/null
@@ -1,24 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2011, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=대시보드로 돌아가기
-Manage\ Jenkins=Jenkins 관리
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_nb_NO.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_nb_NO.properties
deleted file mode 100644
index 3899d9808a..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_nb_NO.properties
+++ /dev/null
@@ -1,24 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2011, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=Tilbake til Dashbord
-Manage\ Jenkins=Konfigurer Jenkins
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_nl.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_nl.properties
deleted file mode 100644
index 5f8c882af4..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_nl.properties
+++ /dev/null
@@ -1,24 +0,0 @@
-# The MIT License
-# 
-# Copyright (c) 2004-2011, Sun Microsystems, Inc., Kohsuke Kawaguchi, Wim Rosseel
-# 
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=Terug naar het overzicht
-Manage\ Jenkins=Beheer Jenkins
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_pl.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_pl.properties
deleted file mode 100644
index 4b68883efb..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_pl.properties
+++ /dev/null
@@ -1,24 +0,0 @@
-# The MIT License
-# 
-# Copyright (c) 2004-2019, Sun Microsystems, Inc., Kohsuke Kawaguchi, Eric Lefevre-Ardant
-# 
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-Back\ to\ Dashboard=Powrót do tablicy
-Manage\ Jenkins=Zarządzaj Jenkinsem
-Update\ Center=Centrum aktualizacji
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_pt_BR.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_pt_BR.properties
deleted file mode 100644
index 9469560760..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_pt_BR.properties
+++ /dev/null
@@ -1,25 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2011, Sun Microsystems, Inc., Kohsuke Kawaguchi, Fernando Boaglio
-# Reginaldo L. Russinholi, Cleiber Silva
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=Voltar ao painel principal
-Manage\ Jenkins=Gerenciar Jenkins
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_pt_PT.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_pt_PT.properties
deleted file mode 100644
index 6df96b2da7..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_pt_PT.properties
+++ /dev/null
@@ -1,23 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2011, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Manage\ Jenkins=Gerir o Jenkins
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_ru.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_ru.properties
deleted file mode 100644
index ed7111da3c..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_ru.properties
+++ /dev/null
@@ -1,24 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2011, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=Домой
-Manage\ Jenkins=Настроить Jenkins
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_sr.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_sr.properties
deleted file mode 100644
index 8312cdfb20..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_sr.properties
+++ /dev/null
@@ -1,5 +0,0 @@
-# This file is under the MIT License by authors
-
-Back\ to\ Dashboard=Назад ка конторлној панели
-Manage\ Jenkins=Управљање Jenkins-ом
-Update\ Center=Центар за Ажурирање
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_sv_SE.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_sv_SE.properties
deleted file mode 100644
index f0963c4021..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_sv_SE.properties
+++ /dev/null
@@ -1,23 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2011, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Manage\ Jenkins=Hantera Jenkins
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_tr.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_tr.properties
deleted file mode 100644
index fcb6318ce0..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_tr.properties
+++ /dev/null
@@ -1,24 +0,0 @@
-# The MIT License
-# 
-# Copyright (c) 2004-2011, Sun Microsystems, Inc., Kohsuke Kawaguchi, Oguz Dag
-# 
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=Kontrol Merkezi''ne Dön
-Manage\ Jenkins=Jenkins''i Yönet
diff --git a/core/src/main/resources/hudson/PluginManager/sidepanel_zh_TW.properties b/core/src/main/resources/hudson/PluginManager/sidepanel_zh_TW.properties
deleted file mode 100644
index 717881bb7e..0000000000
--- a/core/src/main/resources/hudson/PluginManager/sidepanel_zh_TW.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2013, Sun Microsystems, Inc., Chunghwa Telecom Co., Ltd.,
-# and Pei-Tang Huang
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Back\ to\ Dashboard=返回資訊主頁
-Manage\ Jenkins=管理 Jenkins
-Update\ Center=更新中心
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_bg.properties b/core/src/main/resources/hudson/PluginManager/tabBar_bg.properties
deleted file mode 100644
index 91e696ba42..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_bg.properties
+++ /dev/null
@@ -1,32 +0,0 @@
-# The MIT License
-#
-# Bulgarian translation: Copyright (c) 2015, 2016, Alexander Shopov <ash@kambanaria.org>
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=\
- Допълнителни
-Available=\
- Налични
-Installed=\
- Инсталирани
-Updates=\
- Обновления
-Sites=\
- Сайтове
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_ca.properties b/core/src/main/resources/hudson/PluginManager/tabBar_ca.properties
deleted file mode 100644
index 41fe332909..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_ca.properties
+++ /dev/null
@@ -1,6 +0,0 @@
-# This file is under the MIT License by authors
-
-Advanced=Avançat
-Available=Disponible
-Installed=Instal·lats
-Updates=Actualitzacions
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_cs.properties b/core/src/main/resources/hudson/PluginManager/tabBar_cs.properties
deleted file mode 100644
index b416f2ccf2..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_cs.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=Pokročilé
-Available=Dostupné
-Installed=Nainstalované
-Updates=Aktualizace
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_da.properties b/core/src/main/resources/hudson/PluginManager/tabBar_da.properties
deleted file mode 100644
index ab4523456c..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_da.properties
+++ /dev/null
@@ -1,27 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc. Kohsuke Kawaguchi. Knud Poulsen.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Installed=Installeret
-Sites=Sites
-Available=Tilgængelige
-Advanced=Avanceret
-Updates=Opdateringer
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_de.properties b/core/src/main/resources/hudson/PluginManager/tabBar_de.properties
deleted file mode 100644
index f6b5ff8644..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_de.properties
+++ /dev/null
@@ -1,28 +0,0 @@
-# The MIT License
-# 
-# Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi, Simon Wiest
-# 
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Updates=Aktualisierungen
-Available=Verfügbar
-Installed=Installiert
-Advanced=Erweiterte Einstellungen
-Sites=Quellen
-
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_es.properties b/core/src/main/resources/hudson/PluginManager/tabBar_es.properties
deleted file mode 100644
index e86eb33019..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_es.properties
+++ /dev/null
@@ -1,27 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Updates=Actualizaciones disponibles
-Available=Todos los plugins
-Installed=Plugins instalados
-Advanced=Configuracion avanzada
-Sites=Sitios
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_es_AR.properties b/core/src/main/resources/hudson/PluginManager/tabBar_es_AR.properties
deleted file mode 100644
index 0708cfed7a..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_es_AR.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=Avanzado
-Available=Disponible
-Installed=Instalado
-Updates=Actualizar
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_et.properties b/core/src/main/resources/hudson/PluginManager/tabBar_et.properties
deleted file mode 100644
index ba99b46b74..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_et.properties
+++ /dev/null
@@ -1,6 +0,0 @@
-# This file is under the MIT License by authors
-
-Advanced=Edasijõudnutele
-Available=Saadaval
-Installed=Paigaldatud
-Updates=Uuendused
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_fi.properties b/core/src/main/resources/hudson/PluginManager/tabBar_fi.properties
deleted file mode 100644
index bcec2eb7a3..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_fi.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=Edistyneet toiminnot
-Available=Saatavilla
-Installed=Asennetut
-Updates=Päivityksiä
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_fr.properties b/core/src/main/resources/hudson/PluginManager/tabBar_fr.properties
deleted file mode 100644
index 3f2ae88824..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_fr.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-# 
-# Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi, Eric Lefevre-Ardant
-# 
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Updates=Mises à jour
-Available=Disponibles
-Installed=Installés
-Advanced=Avancé
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_he.properties b/core/src/main/resources/hudson/PluginManager/tabBar_he.properties
deleted file mode 100644
index 4008b41537..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_he.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=מתקדם
-Available=זמינים
-Installed=מותקנים
-Updates=עדכונים
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_hu.properties b/core/src/main/resources/hudson/PluginManager/tabBar_hu.properties
deleted file mode 100644
index 957536f3d5..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_hu.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=Speciális
-Available=Elérhető
-Installed=Feltelepített
-Updates=Frissítések
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_it.properties b/core/src/main/resources/hudson/PluginManager/tabBar_it.properties
deleted file mode 100644
index 7d20ecb253..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_it.properties
+++ /dev/null
@@ -1,27 +0,0 @@
-# The MIT License
-#
-# Italian localization plugin for Jenkins
-# Copyright © 2020 Alessandro Menti
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=Avanzate
-Available=Disponibili
-Installed=Installati
-Updates=Aggiornamenti
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_ja.properties b/core/src/main/resources/hudson/PluginManager/tabBar_ja.properties
deleted file mode 100644
index 3ad777c2d8..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_ja.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-# 
-# Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi, Seiji Sogabe
-# 
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Updates=アップデート
-Available=利用可能
-Installed=インストール済み
-Advanced=高度な設定
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_ko.properties b/core/src/main/resources/hudson/PluginManager/tabBar_ko.properties
deleted file mode 100644
index d84363beec..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_ko.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=고급
-Available=설치 가능
-Installed=설치된 플러그인 목록
-Updates=업데이트된 플러그인 목록
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_lt.properties b/core/src/main/resources/hudson/PluginManager/tabBar_lt.properties
deleted file mode 100644
index 79fbe32f4c..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_lt.properties
+++ /dev/null
@@ -1,6 +0,0 @@
-# This file is under the MIT License by authors
-
-Advanced=Sudėtingesni
-Available=Prieinami
-Installed=Įdiegti
-Updates=Atnaujinimai
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_lv.properties b/core/src/main/resources/hudson/PluginManager/tabBar_lv.properties
deleted file mode 100644
index 2ed3b0c95f..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_lv.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=Papildus
-Available=Pieejamie
-Installed=Uzstādītie
-Updates=Atjauninājumi
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_nb_NO.properties b/core/src/main/resources/hudson/PluginManager/tabBar_nb_NO.properties
deleted file mode 100644
index e1d1fc3f69..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_nb_NO.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=Avansert
-Available=Tilgjengelige
-Installed=Installert
-Updates=Oppdateringer
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_nl.properties b/core/src/main/resources/hudson/PluginManager/tabBar_nl.properties
deleted file mode 100644
index 609c0fbe9d..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_nl.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-# 
-# Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi, Wim Rosseel
-# 
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Updates=Nieuwere versies
-Available=Beschikbaar
-Installed=Geïnstalleerd
-Advanced=Uitgebreid
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_pl.properties b/core/src/main/resources/hudson/PluginManager/tabBar_pl.properties
deleted file mode 100644
index 02848b73f1..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_pl.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=Zaawansowane
-Available=Dostępne
-Installed=Zainstalowane
-Updates=Aktualizacje
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_pt_BR.properties b/core/src/main/resources/hudson/PluginManager/tabBar_pt_BR.properties
deleted file mode 100644
index 69112318e3..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_pt_BR.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-# 
-# Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi, Reginaldo L. Russinholi, Cleiber Silva
-# 
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Updates=Atualizações
-Available=Disponíveis
-Installed=Instalados
-Advanced=Avançado
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_pt_PT.properties b/core/src/main/resources/hudson/PluginManager/tabBar_pt_PT.properties
deleted file mode 100644
index b9e220d03a..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_pt_PT.properties
+++ /dev/null
@@ -1,6 +0,0 @@
-# This file is under the MIT License by authors
-
-Advanced=Avançado
-Available=Disponíveis
-Installed=Instalados
-Updates=Atualizações
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_ro.properties b/core/src/main/resources/hudson/PluginManager/tabBar_ro.properties
deleted file mode 100644
index fd586ae0ac..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_ro.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=Avansat
-Available=Disponibile
-Installed=Instalat
-Updates=Actualizări
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_ru.properties b/core/src/main/resources/hudson/PluginManager/tabBar_ru.properties
deleted file mode 100644
index cfeeb9ebc5..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_ru.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=Дополнительно
-Available=Доступные
-Installed=Установленные
-Updates=Обновления
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_sk.properties b/core/src/main/resources/hudson/PluginManager/tabBar_sk.properties
deleted file mode 100644
index 5e4985ee5b..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_sk.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=Pokročilé
-Available=Dostupné
-Installed=Inštalované
-Updates=Aktualizácie
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_sr.properties b/core/src/main/resources/hudson/PluginManager/tabBar_sr.properties
deleted file mode 100644
index d9155b3d06..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_sr.properties
+++ /dev/null
@@ -1,7 +0,0 @@
-# This file is under the MIT License by authors
-
-Updates=Надградње
-Available=Доступно
-Installed=Инсталирано
-Advanced=Напредно
-Sites=Странице
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_sv_SE.properties b/core/src/main/resources/hudson/PluginManager/tabBar_sv_SE.properties
deleted file mode 100644
index ae8869408e..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_sv_SE.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2010, Sun Microsystems, Inc.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Advanced=Avancerat
-Available=Tillgängliga
-Installed=Installerade
-Updates=Uppdatering
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_tr.properties b/core/src/main/resources/hudson/PluginManager/tabBar_tr.properties
deleted file mode 100644
index 7b774e3aa3..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_tr.properties
+++ /dev/null
@@ -1,26 +0,0 @@
-# The MIT License
-# 
-# Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi, Oguz Dag
-# 
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Updates=Güncellemeler
-Available=Kullanılabilir
-Installed=Yüklenmiş
-Advanced=Gelişmiş
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_uk.properties b/core/src/main/resources/hudson/PluginManager/tabBar_uk.properties
deleted file mode 100644
index 5c252daace..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_uk.properties
+++ /dev/null
@@ -1,6 +0,0 @@
-# This file is under the MIT License by authors
-
-Advanced=Додатково
-Available=Доступні
-Installed=Встановлені
-Updates=Оновлення
diff --git a/core/src/main/resources/hudson/PluginManager/tabBar_zh_TW.properties b/core/src/main/resources/hudson/PluginManager/tabBar_zh_TW.properties
deleted file mode 100644
index 3367838e16..0000000000
--- a/core/src/main/resources/hudson/PluginManager/tabBar_zh_TW.properties
+++ /dev/null
@@ -1,28 +0,0 @@
-# The MIT License
-#
-# Copyright (c) 2004-2013, Sun Microsystems, Inc., Chunghwa Telecom Co., Ltd.,
-# and Pei-Tang Huang
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-Updates=更新
-Available=可用的
-Installed=已安裝
-Sites=站台
-Advanced=進階
diff --git a/core/src/main/resources/hudson/PluginManager/table.jelly b/core/src/main/resources/hudson/PluginManager/table.jelly
index ea56b53720..eb60c29f55 100644
--- a/core/src/main/resources/hudson/PluginManager/table.jelly
+++ b/core/src/main/resources/hudson/PluginManager/table.jelly
@@ -36,28 +36,31 @@ THE SOFTWARE.
       If true, will hide all rows by default, and only the filter field will show them.
     </st:attribute>
   </st:documentation>
-  <l:layout title="${%Update Center} - ${%Plugin Manager}" permission="${app.SYSTEM_READ}">
-    <l:app-bar title="${%Plugin Manager}" />
+  <l:layout title="${%Updates} - ${%Plugin Manager}" permission="${app.SYSTEM_READ}">
+
+    <l:app-bar title="${%Plugins}" />
 
     <st:include page="sidepanel.jelly"/>
+
     <l:main-panel>
+      <div class="jenkins-app-bar jenkins-app-bar--sticky">
+        <div class="jenkins-app-bar__content">
+          <div class="app-plugin-manager__search">
+            <span class="app-plugin-manager__search__icon">
+              <l:icon src="symbol-search"/>
+            </span>
+            <input type="search"
+                   placeholder="Search plugin updates"
+                   id="filter-box"
+                   value="${request.getParameter('filter')}" />
+          </div>
+        </div>
+      </div>
+
       <st:adjunct includes="hudson.PluginManager._table"/>
 
       <form method="post" action="install">
         <j:set var="isUpdates" value="${attrs.page=='updates'}"/>
-        <local:tabBar xmlns:local="/hudson/PluginManager" page="${attrs.page}"/>
-
-        <div class="jenkins-form-item jenkins-search">
-          <input
-            class="jenkins-search__input"
-            type="search"
-            id="filter-box"
-            value="${request.getParameter('filter')}"
-            placeholder="${filtered == 'true' ? '%Search' : '%Filter'}"/>
-          <div class="jenkins-search__icon">
-            <l:icon src="symbol-search"/>
-          </div>
-        </div>
 
         <j:set var="cache" value="${it.createCache()}"/>
 
diff --git a/core/src/main/resources/hudson/model/UpdateCenter/index.jelly b/core/src/main/resources/hudson/model/UpdateCenter/index.jelly
index 8e8209cdaf..1e2bfb9517 100644
--- a/core/src/main/resources/hudson/model/UpdateCenter/index.jelly
+++ b/core/src/main/resources/hudson/model/UpdateCenter/index.jelly
@@ -28,11 +28,11 @@ THE SOFTWARE.
 -->
 <?jelly escape-by-default='true'?>
 <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">
-<l:layout title="${%Update Center}" permission="${app.SYSTEM_READ}">
+<l:layout title="${%Download progress} - ${%Plugin Manager}" permission="${app.SYSTEM_READ}">
   <st:adjunct includes="hudson.model.UpdateCenter.update-center" />
-  <st:include page="sidepanel.jelly" />
+  <st:include page="sidepanel.jelly" it="${app.pluginManager}" />
   <l:main-panel>
-    <h1>${%Installing Plugins/Upgrades}</h1>
+    <h1>${%Download progress}</h1>
     <st:include page="body.jelly" />
   </l:main-panel>
 </l:layout>
diff --git a/war/src/main/js/plugin-manager-ui.js b/war/src/main/js/plugin-manager-ui.js
index e55f5acaf4..a69d47d4f5 100644
--- a/war/src/main/js/plugin-manager-ui.js
+++ b/war/src/main/js/plugin-manager-ui.js
@@ -15,7 +15,9 @@ function applyFilter(searchQuery) {
       var selectedPlugins = [];
 
       var filterInput = document.getElementById("filter-box");
-      filterInput.parentElement.classList.remove("jenkins-search--loading");
+      filterInput.parentElement.classList.remove(
+        "app-plugin-manager__search--loading"
+      );
 
       function clearOldResults() {
         if (!admin) {
@@ -60,7 +62,9 @@ document.addEventListener("DOMContentLoaded", function () {
   var filterInput = document.getElementById("filter-box");
   filterInput.addEventListener("input", function (e) {
     debouncedFilter(e);
-    filterInput.parentElement.classList.add("jenkins-search--loading");
+    filterInput.parentElement.classList.add(
+      "app-plugin-manager__search--loading"
+    );
   });
 
   filterInput.focus();
diff --git a/war/src/main/less/modules/app-bar.less b/war/src/main/less/modules/app-bar.less
index e429f7bac4..78be7b32ed 100644
--- a/war/src/main/less/modules/app-bar.less
+++ b/war/src/main/less/modules/app-bar.less
@@ -31,6 +31,41 @@
     border-bottom: 2px solid var(--panel-border-color);
   }
 
+  &--sticky {
+    position: sticky;
+    top: 40px;
+    padding-top: 2rem;
+    margin-top: -2rem;
+    z-index: 2;
+
+    &::before,
+    &::after {
+      content: "";
+      position: absolute;
+      top: 0;
+      left: -2rem;
+      bottom: -2rem;
+      right: -2rem;
+      z-index: -1;
+      pointer-events: none;
+    }
+
+    &::before {
+      background: var(--background);
+      mask-image: linear-gradient(black 70%, transparent);
+      opacity: 0.55;
+
+      @supports not (backdrop-filter: blur(15px)) {
+        opacity: 1;
+      }
+    }
+
+    &::after {
+      backdrop-filter: blur(15px);
+      mask-image: linear-gradient(black 50%, transparent);
+    }
+  }
+
   h1,
   h2 {
     margin: 0;
diff --git a/war/src/main/less/modules/side-panel-tasks.less b/war/src/main/less/modules/side-panel-tasks.less
index e7157a58e2..e7b80116b3 100644
--- a/war/src/main/less/modules/side-panel-tasks.less
+++ b/war/src/main/less/modules/side-panel-tasks.less
@@ -59,6 +59,32 @@
     }
   }
 
+  .task-icon-badge {
+    position: relative;
+    color: currentColor;
+    letter-spacing: 0;
+    z-index: 0;
+    margin-left: auto;
+    min-width: 24px;
+    text-align: center;
+    padding: 0 8px;
+    line-height: 0.75rem;
+    font-size: 0.75rem;
+
+    &::before {
+      content: "";
+      position: absolute;
+      inset: -6px 0;
+      background: var(--item-background--hover);
+      border-radius: 100px;
+      z-index: -1;
+    }
+  }
+
+  .task-link-text {
+    display: contents;
+  }
+
   .task-link-text {
     display: contents;
   }
diff --git a/war/src/main/less/pages/plugin-manager.less b/war/src/main/less/pages/plugin-manager.less
index aa54cb0031..0f798de8a6 100644
--- a/war/src/main/less/pages/plugin-manager.less
+++ b/war/src/main/less/pages/plugin-manager.less
@@ -117,3 +117,165 @@
     border-radius: 0.25em;
   }
 }
+
+.app-plugin-manager__sidebar {
+  position: sticky;
+  top: calc(40px + 1.6rem);
+
+  h1 {
+    margin-top: 1rem !important;
+    margin-bottom: 0.1rem !important;
+  }
+}
+
+.app-plugin-manager__search {
+  position: relative;
+  display: grid;
+  grid-template-columns: auto 1fr;
+  align-items: center;
+  width: 50vw;
+  z-index: 1;
+  padding: 0 1rem;
+  gap: 0.5rem 0.75rem;
+
+  &::before,
+  &::after {
+    content: "";
+    position: absolute;
+    inset: 0;
+    border-radius: 10px;
+    z-index: -1;
+  }
+
+  &::before {
+    backdrop-filter: blur(20px);
+    box-shadow: 0 0 var(--section-padding) var(--background);
+
+    @supports not (backdrop-filter: blur(20px)) {
+      background: var(--background);
+    }
+  }
+
+  &::after {
+    background: var(--item-background--hover);
+    box-shadow: 0 0 0 10px transparent;
+    transition: var(--standard-transition);
+    opacity: 0.75;
+  }
+
+  svg {
+    width: 1.1rem;
+    height: 1.1rem;
+  }
+
+  &__icon {
+    position: relative;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+
+    &::before {
+      content: "";
+      position: absolute;
+      inset: 1rem;
+      color: inherit;
+      border: 2px solid currentColor;
+      border-radius: 100%;
+      opacity: 0;
+      transition: var(--standard-transition);
+    }
+
+    &::after {
+      content: "";
+      position: absolute;
+      inset: 1rem;
+      color: inherit;
+      border: 2px solid currentColor;
+      border-radius: 100%;
+      clip-path: inset(0 0 50% 50%);
+      opacity: 0;
+      transition: var(--standard-transition);
+      animation: loading-spinner 1s infinite linear;
+
+      @media (prefers-reduced-motion) {
+        animation-duration: 2s;
+      }
+    }
+  }
+
+  &--loading {
+    .app-plugin-manager__search__icon {
+      svg {
+        opacity: 0;
+        transform: scale(0);
+      }
+
+      &::before {
+        opacity: 0.2;
+        inset: 0;
+      }
+
+      &::after {
+        opacity: 1;
+        inset: 0;
+      }
+    }
+  }
+
+  input {
+    background: transparent;
+    border: none;
+    outline: none;
+    font-size: 0.9rem;
+    font-weight: 500;
+    padding: 0.75rem 0;
+
+    &::placeholder {
+      color: var(--text-color-secondary);
+    }
+
+    &::-webkit-search-cancel-button {
+      -webkit-appearance: none;
+      height: 1.2rem;
+      width: 1.2rem;
+      background: currentColor;
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Cpath d='M256 48C141.31 48 48 141.31 48 256s93.31 208 208 208 208-93.31 208-208S370.69 48 256 48zm75.31 260.69a16 16 0 11-22.62 22.62L256 278.63l-52.69 52.68a16 16 0 01-22.62-22.62L233.37 256l-52.68-52.69a16 16 0 0122.62-22.62L256 233.37l52.69-52.68a16 16 0 0122.62 22.62L278.63 256z'/%3E%3C/svg%3E");
+      mask-size: contain;
+      mask-repeat: no-repeat;
+      opacity: 0;
+      pointer-events: none;
+      transform: scale(0.8);
+      transition: var(--standard-transition);
+      cursor: pointer;
+
+      &:hover {
+        opacity: 0.75 !important;
+      }
+
+      &:active {
+        opacity: 1 !important;
+      }
+    }
+
+    &:focus {
+      &::-webkit-search-cancel-button {
+        opacity: 0.5;
+        pointer-events: all;
+        transform: scale(1);
+      }
+    }
+  }
+
+  &:hover {
+    &::after {
+      background: var(--item-background--active);
+    }
+  }
+
+  &:focus-within {
+    &::after {
+      background: var(--item-background--active);
+      box-shadow: 0 0 0 5px var(--item-box-shadow--focus);
+    }
+  }
+}
diff --git a/war/src/main/resources/images/symbols/shopping-bag.svg b/war/src/main/resources/images/symbols/shopping-bag.svg
new file mode 100644
index 0000000000..320e20258a
--- /dev/null
+++ b/war/src/main/resources/images/symbols/shopping-bag.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M80 176a16 16 0 00-16 16v216c0 30.24 25.76 56 56 56h272c30.24 0 56-24.51 56-54.75V192a16 16 0 00-16-16zM160 176v-32a96 96 0 0196-96h0a96 96 0 0196 96v32" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="32"/><path d="M160 224v16a96 96 0 0096 96h0a96 96 0 0096-96v-16" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="32"/></svg>
\ No newline at end of file