diff --git a/src/main/scala/gitbucket/core/controller/SystemSettingsController.scala b/src/main/scala/gitbucket/core/controller/SystemSettingsController.scala
index 69f0223..dd9edc9 100644
--- a/src/main/scala/gitbucket/core/controller/SystemSettingsController.scala
+++ b/src/main/scala/gitbucket/core/controller/SystemSettingsController.scala
@@ -322,21 +322,16 @@
   get("/admin/plugins")(adminOnly {
     // Installed plugins
     val enabledPlugins = PluginRegistry().getPlugins()
+    val gitbucketVersion = GitBucketCoreModule.getVersions.asScala.last.getVersion
 
-    val gitbucketVersion = Semver.valueOf(GitBucketCoreModule.getVersions.asScala.last.getVersion)
-
-    // Plugins in the local repository
+    // Plugins in the remote repository
     val repositoryPlugins = PluginRepository
       .getPlugins()
-      .filterNot { meta =>
-        enabledPlugins.exists { plugin =>
-          plugin.pluginId == meta.id &&
-          Semver.valueOf(plugin.pluginVersion).greaterThanOrEqualTo(Semver.valueOf(meta.latestVersion.version))
-        }
-      }
       .map { meta =>
         (meta, meta.versions.reverse.find { version =>
-          gitbucketVersion.satisfies(version.range)
+          gitbucketVersion == version.gitbucketVersion && !enabledPlugins.exists { plugin =>
+            plugin.pluginId == meta.id && plugin.pluginVersion == version.version
+          }
         })
       }
       .collect {
@@ -345,12 +340,20 @@
             pluginId = meta.id,
             pluginName = meta.name,
             pluginVersion = version.version,
+            gitbucketVersion = Some(version.gitbucketVersion),
             description = meta.description
           )
       }
 
     // Merge
-    val plugins = enabledPlugins.map((_, true)) ++ repositoryPlugins.map((_, false))
+    val plugins = (enabledPlugins.map((_, true)) ++ repositoryPlugins.map((_, false)))
+      .groupBy(_._1.pluginId)
+      .map {
+        case (pluginId, plugins) =>
+          val (plugin, enabled) = plugins.head
+          (plugin, enabled, if (plugins.length > 1) plugins.last._1.pluginVersion else "")
+      }
+      .toList
 
     html.plugins(plugins, flash.get("info"))
   })
@@ -378,21 +381,20 @@
   post("/admin/plugins/:pluginId/:version/_install")(adminOnly {
     val pluginId = params("pluginId")
     val version = params("version")
-    /// TODO!!!!
+
     PluginRepository
       .getPlugins()
       .collect { case meta if meta.id == pluginId => (meta, meta.versions.find(_.version == version)) }
       .foreach {
         case (meta, version) =>
           version.foreach { version =>
-            // TODO Install version!
             PluginRegistry.install(
-              new java.io.File(PluginHome, s".repository/${version.file}"),
+              new java.net.URL(version.url),
               request.getServletContext,
               loadSystemSettings(),
               request2Session(request).conn
             )
-            flash += "info" -> s"${pluginId} was installed."
+            flash += "info" -> s"${pluginId}:${version.version} was installed."
           }
       }
     redirect("/admin/plugins")
diff --git a/src/main/scala/gitbucket/core/plugin/PluginRegistry.scala b/src/main/scala/gitbucket/core/plugin/PluginRegistry.scala
index 287a5bc..857e501 100644
--- a/src/main/scala/gitbucket/core/plugin/PluginRegistry.scala
+++ b/src/main/scala/gitbucket/core/plugin/PluginRegistry.scala
@@ -9,6 +9,8 @@
 import java.util.concurrent.ConcurrentHashMap
 import javax.servlet.ServletContext
 
+import com.github.zafarkhaja.semver.Version
+import gitbucket.core.GitBucketCoreModule
 import gitbucket.core.controller.{Context, ControllerBase}
 import gitbucket.core.model.{Account, Issue}
 import gitbucket.core.service.ProtectedBranchService.ProtectedBranchReceiveHook
@@ -202,7 +204,7 @@
 
   private var watcher: PluginWatchThread = null
   private var extraWatcher: PluginWatchThread = null
-  private val initializing = new AtomicBoolean(false)
+  //private val initializing = new AtomicBoolean(false)
 
   /**
    * Returns the PluginRegistry singleton instance.
@@ -234,7 +236,15 @@
 //          logger.error(s"Error during uninstalling plugin: ${plugin.pluginJar.getName}", e)
 //      }
           shutdown(context, settings)
-          plugin.pluginJar.delete()
+
+          new File(PluginHome)
+            .listFiles((_: File, name: String) => {
+              name.startsWith(s"gitbucket-${pluginId}-plugin") && name.endsWith(".jar")
+            })
+            .foreach { file =>
+              file.delete()
+            }
+
           instance = new PluginRegistry()
           initialize(context, settings, conn)
         }
@@ -243,10 +253,11 @@
   /**
    * Install a plugin from a specified jar file.
    */
-  def install(file: File, context: ServletContext, settings: SystemSettings, conn: java.sql.Connection): Unit =
+  def install(url: java.net.URL, context: ServletContext, settings: SystemSettings, conn: java.sql.Connection): Unit =
     synchronized {
       shutdown(context, settings)
-      FileUtils.copyFile(file, new File(PluginHome, file.getName))
+      val in = url.openStream()
+      FileUtils.copyToFile(in, new File(PluginHome, new File(url.getFile).getName))
       instance = new PluginRegistry()
       initialize(context, settings, conn)
     }
@@ -257,12 +268,27 @@
         override def accept(dir: File, name: String): Boolean = name.endsWith(".jar")
       })
       .toSeq
-      .sortBy(_.getName)
+      .sortBy(x => Version.valueOf(getPluginVersion(x.getName)))
       .reverse
   }
 
   lazy val extraPluginDir: Option[String] = Option(System.getProperty("gitbucket.pluginDir"))
 
+  def getGitBucketVersion(pluginJarFileName: String): Option[String] = {
+    val regex = ".+-gitbucket\\_(\\d+\\.\\d+\\.\\d+)-.+".r
+    pluginJarFileName match {
+      case regex(x) => Some(x)
+      case _        => None
+    }
+  }
+
+  def getPluginVersion(pluginJarFileName: String): String = {
+    val regex = ".+-(\\d+\\.\\d+\\.\\d+)\\.jar$".r
+    pluginJarFileName match {
+      case regex(x) => x
+    }
+  }
+
   /**
    * Initializes all installed plugins.
    */
@@ -278,6 +304,7 @@
     installedDir.mkdirs()
 
     val pluginJars = listPluginJars(pluginDir)
+
     val extraJars = extraPluginDir
       .map { extraDir =>
         listPluginJars(new File(extraDir))
@@ -288,9 +315,9 @@
       val installedJar = new File(installedDir, pluginJar.getName)
 
       FileUtils.copyFile(pluginJar, installedJar)
-
       logger.info(s"Initialize ${pluginJar.getName}")
-      val classLoader = new URLClassLoader(Array(installedJar.toURI.toURL), Thread.currentThread.getContextClassLoader)
+      val classLoader =
+        new URLClassLoader(Array(installedJar.toURI.toURL), Thread.currentThread.getContextClassLoader)
       try {
         val plugin = classLoader.loadClass("Plugin").getDeclaredConstructor().newInstance().asInstanceOf[Plugin]
         val pluginId = plugin.pluginId
@@ -304,7 +331,12 @@
             // Migration
             val solidbase = new Solidbase()
             solidbase
-              .migrate(conn, classLoader, DatabaseConfig.liquiDriver, new Module(plugin.pluginId, plugin.versions: _*))
+              .migrate(
+                conn,
+                classLoader,
+                DatabaseConfig.liquiDriver,
+                new Module(plugin.pluginId, plugin.versions: _*)
+              )
             conn.commit()
 
             // Check database version
@@ -323,6 +355,7 @@
                 pluginId = plugin.pluginId,
                 pluginName = plugin.pluginName,
                 pluginVersion = plugin.versions.last.getVersion,
+                gitbucketVersion = getGitBucketVersion(installedJar.getName),
                 description = plugin.description,
                 pluginClass = plugin,
                 pluginJar = pluginJar,
@@ -334,6 +367,7 @@
       } catch {
         case e: Throwable => logger.error(s"Error during plugin initialization: ${pluginJar.getName}", e)
       }
+//      }
     }
 
     if (watcher == null) {
@@ -384,6 +418,7 @@
   val pluginId: String,
   val pluginName: String,
   val pluginVersion: String,
+  val gitbucketVersion: Option[String],
   val description: String
 )
 
@@ -391,11 +426,12 @@
   override val pluginId: String,
   override val pluginName: String,
   override val pluginVersion: String,
+  override val gitbucketVersion: Option[String],
   override val description: String,
   pluginClass: Plugin,
   pluginJar: File,
   classLoader: URLClassLoader
-) extends PluginInfoBase(pluginId, pluginName, pluginVersion, description)
+) extends PluginInfoBase(pluginId, pluginName, pluginVersion, gitbucketVersion, description)
 
 class PluginWatchThread(context: ServletContext, dir: String) extends Thread with SystemSettingsService {
   import gitbucket.core.model.Profile.profile.blockingApi._
diff --git a/src/main/scala/gitbucket/core/plugin/PluginRepository.scala b/src/main/scala/gitbucket/core/plugin/PluginRepository.scala
index e3d9d1c..39a909f 100644
--- a/src/main/scala/gitbucket/core/plugin/PluginRepository.scala
+++ b/src/main/scala/gitbucket/core/plugin/PluginRepository.scala
@@ -2,7 +2,7 @@
 
 import org.json4s._
 import gitbucket.core.util.Directory._
-import org.apache.commons.io.FileUtils
+import org.apache.commons.io.{FileUtils, IOUtils}
 
 object PluginRepository {
   implicit val formats = DefaultFormats
@@ -15,9 +15,10 @@
   lazy val LocalRepositoryIndexFile = new java.io.File(LocalRepositoryDir, "plugins.json")
 
   def getPlugins(): Seq[PluginMetadata] = {
-    if (LocalRepositoryIndexFile.exists) {
-      parsePluginJson(FileUtils.readFileToString(LocalRepositoryIndexFile, "UTF-8"))
-    } else Nil
+    // TODO Pre-load the plugin list in background
+    val url = new java.net.URL("https://plugins.gitbucket-community.org/releases/plugins.json")
+    val str = IOUtils.toString(url, "UTF-8")
+    parsePluginJson(str)
   }
 
 }
@@ -36,7 +37,5 @@
 case class VersionDef(
   version: String,
   url: String,
-  range: String
-) {
-  lazy val file = url.substring(url.lastIndexOf("/") + 1)
-}
+  gitbucketVersion: String
+)
diff --git a/src/main/scala/gitbucket/core/servlet/InitializeListener.scala b/src/main/scala/gitbucket/core/servlet/InitializeListener.scala
index 326608b..2818dbd 100644
--- a/src/main/scala/gitbucket/core/servlet/InitializeListener.scala
+++ b/src/main/scala/gitbucket/core/servlet/InitializeListener.scala
@@ -136,46 +136,46 @@
   }
 
   private def extractBundledPlugins(gitbucketVersion: String): Unit = {
-    logger.info("Extract bundled plugins")
-    val cl = Thread.currentThread.getContextClassLoader
-    try {
-      using(cl.getResourceAsStream("plugins/plugins.json")) { pluginsFile =>
-        if (pluginsFile != null) {
-          val pluginsJson = IOUtils.toString(pluginsFile, "UTF-8")
-
-          FileUtils.forceMkdir(PluginRepository.LocalRepositoryDir)
-          FileUtils.write(PluginRepository.LocalRepositoryIndexFile, pluginsJson, "UTF-8")
-
-          val plugins = PluginRepository.parsePluginJson(pluginsJson)
-          plugins.foreach { plugin =>
-            plugin.versions
-              .sortBy { x =>
-                Semver.valueOf(x.version)
-              }
-              .reverse
-              .zipWithIndex
-              .foreach {
-                case (version, i) =>
-                  val file = new File(PluginRepository.LocalRepositoryDir, version.file)
-                  if (!file.exists) {
-                    logger.info(s"Copy ${plugin} to ${file.getAbsolutePath}")
-                    FileUtils.forceMkdirParent(file)
-                    using(cl.getResourceAsStream("plugins/" + version.file), new FileOutputStream(file)) {
-                      case (in, out) => IOUtils.copy(in, out)
-                    }
-
-                    if (plugin.default && i == 0) {
-                      logger.info(s"Enable ${file.getName} in default")
-                      FileUtils.copyFile(file, new File(PluginHome, version.file))
-                    }
-                  }
-              }
-          }
-        }
-      }
-    } catch {
-      case e: Exception => logger.error("Error in extracting bundled plugin", e)
-    }
+//    logger.info("Extract bundled plugins")
+//    val cl = Thread.currentThread.getContextClassLoader
+//    try {
+//      using(cl.getResourceAsStream("plugins/plugins.json")) { pluginsFile =>
+//        if (pluginsFile != null) {
+//          val pluginsJson = IOUtils.toString(pluginsFile, "UTF-8")
+//
+//          FileUtils.forceMkdir(PluginRepository.LocalRepositoryDir)
+//          FileUtils.write(PluginRepository.LocalRepositoryIndexFile, pluginsJson, "UTF-8")
+//
+//          val plugins = PluginRepository.parsePluginJson(pluginsJson)
+//          plugins.foreach { plugin =>
+//            plugin.versions
+//              .sortBy { x =>
+//                Semver.valueOf(x.version)
+//              }
+//              .reverse
+//              .zipWithIndex
+//              .foreach {
+//                case (version, i) =>
+//                  val file = new File(PluginRepository.LocalRepositoryDir, version.file)
+//                  if (!file.exists) {
+//                    logger.info(s"Copy ${plugin} to ${file.getAbsolutePath}")
+//                    FileUtils.forceMkdirParent(file)
+//                    using(cl.getResourceAsStream("plugins/" + version.file), new FileOutputStream(file)) {
+//                      case (in, out) => IOUtils.copy(in, out)
+//                    }
+//
+//                    if (plugin.default && i == 0) {
+//                      logger.info(s"Enable ${file.getName} in default")
+//                      FileUtils.copyFile(file, new File(PluginHome, version.file))
+//                    }
+//                  }
+//              }
+//          }
+//        }
+//      }
+//    } catch {
+//      case e: Exception => logger.error("Error in extracting bundled plugin", e)
+//    }
   }
 
   override def contextDestroyed(event: ServletContextEvent): Unit = {
diff --git a/src/main/twirl/gitbucket/core/admin/plugins.scala.html b/src/main/twirl/gitbucket/core/admin/plugins.scala.html
index db8f498..d97d893 100644
--- a/src/main/twirl/gitbucket/core/admin/plugins.scala.html
+++ b/src/main/twirl/gitbucket/core/admin/plugins.scala.html
@@ -1,4 +1,4 @@
-@(plugins: List[(gitbucket.core.plugin.PluginInfoBase, Boolean)], info: Option[Any])(implicit context: gitbucket.core.controller.Context)
+@(plugins: List[(gitbucket.core.plugin.PluginInfoBase, Boolean, String)], info: Option[Any])(implicit context: gitbucket.core.controller.Context)
 @gitbucket.core.html.main("Plugins"){
   @gitbucket.core.admin.html.menu("plugins") {
     @gitbucket.core.helper.html.information(info)
@@ -8,18 +8,24 @@
     <h1 class="system-settings-title">Plugins</h1>
     @if(plugins.size > 0) {
       <ul>
-      @plugins.map { case (plugin, enabled) =>
+      @plugins.map { case (plugin, enabled, updatableVersion) =>
         <li><a href="#@plugin.pluginId">@plugin.pluginId:@plugin.pluginVersion</a></li>
       }
       </ul>
 
-      @plugins.map { case (plugin, enabled) =>
+      @plugins.map { case (plugin, enabled, updatableVersion) =>
         <div class="panel panel-default">
           <div class="panel-heading strong" id="@plugin.pluginId">
             @if(enabled){
-              <form action="@{context.path}/admin/plugins/@{plugin.pluginId}/@{plugin.pluginVersion}/_uninstall" method="POST" class="pull-right uninstall-form">
-                <input type="submit" value="Uninstall" class="btn btn-danger btn-sm" style="position: relative; top: -5px; left: 10px;" data-name="@plugin.pluginName">
-              </form>
+              @if(updatableVersion.isEmpty){
+                <form action="@{context.path}/admin/plugins/@{plugin.pluginId}/@{plugin.pluginVersion}/_uninstall" method="POST" class="pull-right uninstall-form">
+                  <input type="submit" value="Uninstall" class="btn btn-danger btn-sm" style="position: relative; top: -5px; left: 10px;" data-name="@plugin.pluginName">
+                </form>
+              } else {
+                <form action="@{context.path}/admin/plugins/@{plugin.pluginId}/@{updatableVersion}/_install" method="POST" class="pull-right install-form">
+                  <input type="submit" value="Update" class="btn btn-primary btn-sm" style="position: relative; top: -5px; left: 10px;" data-name="@plugin.pluginName">
+                </form>
+              }
             } else {
               <form action="@{context.path}/admin/plugins/@{plugin.pluginId}/@{plugin.pluginVersion}/_install" method="POST" class="pull-right install-form">
                 <input type="submit" value="Install" class="btn btn-success btn-sm" style="position: relative; top: -5px; left: 10px;" data-name="@plugin.pluginName">