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              <span class="js-currentVersion" aria-hidden="true">3.9.5</span>
              [aria-hidden="true"] {
  display: none;
  visibility: hidden;
              (function() {
  // Check permissions
  if ("Notification" in window) {
    var permission = Notification.permission;
    if (permission === "denied") { 
    } else if (permission === "granted") { 
      return checkVersion();
    Notification.requestPermission().then(function() {

  function checkVersion() {
    // Retrieve current version
    var latestVersion = document.querySelector(".js-currentVersion").textContent;
    var currentVersion = localStorage.getItem("conciseVersion");
    if (currentVersion === null || semverCompare(currentVersion, latestVersion) === -1 ) {      
        `Click to see what's new in v${latestVersion}`,
        "A new version of Concise is available",
      localStorage.setItem("conciseVersion", latestVersion);

  function displayNotification(body, icon, title, link, duration) {
    link = link || 0; // Link is optional
    duration = duration || 5000; // Default duration is 5 seconds

    var options = {
      body: body,
      icon: icon

    var n = new Notification(title, options);

    if (link) {
      n.onclick = function () {

    setTimeout(n.close.bind(n), duration);

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