New: OnApplicationUpdate Notifications

* Added translations

Fixes #2552
[common]

(cherry picked from commit 9e175e28efcfc6ac3e414649b955a10fb0e951e7)

frontend/src/Settings/Notifications/Notifications/Notification.js

@@ -63,6 +63,7 @@ class Notification extends Component {
       onDownloadFailure,
       onImportFailure,
       onTrackRetag,
+      onApplicationUpdate,
       supportsOnGrab,
       supportsOnReleaseImport,
       supportsOnUpgrade,
@@ -70,7 +71,8 @@ class Notification extends Component {
       supportsOnHealthIssue,
       supportsOnDownloadFailure,
       supportsOnImportFailure,
-      supportsOnTrackRetag
+      supportsOnTrackRetag,
+      supportsOnApplicationUpdate
     } = this.props;
 
     return (
@@ -86,62 +88,69 @@ class Notification extends Component {
         {
           supportsOnGrab && onGrab &&
             <Label kind={kinds.SUCCESS}>
-              On Grab
+              {translate('OnGrab')}
             </Label>
         }
 
         {
           supportsOnReleaseImport && onReleaseImport &&
             <Label kind={kinds.SUCCESS}>
-              On Release Import
+              {translate('OnReleaseImport')}
             </Label>
         }
 
         {
           supportsOnUpgrade && onReleaseImport && onUpgrade &&
             <Label kind={kinds.SUCCESS}>
-              On Upgrade
+              {translate('OnUpgrade')}
             </Label>
         }
 
         {
           supportsOnRename && onRename &&
             <Label kind={kinds.SUCCESS}>
-              On Rename
+              {translate('OnRename')}
             </Label>
         }
 
         {
           supportsOnTrackRetag && onTrackRetag &&
             <Label kind={kinds.SUCCESS}>
-              On Track Tag Update
+              {translate('OnTrackRetag')}
             </Label>
         }
 
         {
           supportsOnHealthIssue && onHealthIssue &&
             <Label kind={kinds.SUCCESS}>
-              On Health Issue
+              {translate('OnHealthIssue')}
             </Label>
         }
 
         {
           supportsOnDownloadFailure && onDownloadFailure &&
             <Label kind={kinds.SUCCESS} >
-              On Download Failure
+              {translate('OnDownloadFailure')}
             </Label>
         }
 
         {
           supportsOnImportFailure && onImportFailure &&
             <Label kind={kinds.SUCCESS} >
-              On Import Failure
+              {translate('OnImportFailure')}
+            </Label>
+        }
+
+        {
+          supportsOnApplicationUpdate && onApplicationUpdate &&
+            <Label kind={kinds.SUCCESS} >
+              {translate('OnApplicationUpdate')}
             </Label>
         }
 
         {
           !onGrab && !onReleaseImport && !onRename && !onTrackRetag &&
-            !onHealthIssue && !onDownloadFailure && !onImportFailure &&
+            !onHealthIssue && !onDownloadFailure && !onImportFailure && !onApplicationUpdate &&
               <Label
                 kind={kinds.DISABLED}
                 outline={true}
@@ -182,6 +191,7 @@ Notification.propTypes = {
   onDownloadFailure: PropTypes.bool.isRequired,
   onImportFailure: PropTypes.bool.isRequired,
   onTrackRetag: PropTypes.bool.isRequired,
+  onApplicationUpdate: PropTypes.bool.isRequired,
   supportsOnGrab: PropTypes.bool.isRequired,
   supportsOnReleaseImport: PropTypes.bool.isRequired,
   supportsOnUpgrade: PropTypes.bool.isRequired,
@@ -190,6 +200,7 @@ Notification.propTypes = {
   supportsOnDownloadFailure: PropTypes.bool.isRequired,
   supportsOnImportFailure: PropTypes.bool.isRequired,
   supportsOnTrackRetag: PropTypes.bool.isRequired,
+  supportsOnApplicationUpdate: PropTypes.bool.isRequired,
   onConfirmDeleteNotification: PropTypes.func.isRequired
 };
 

frontend/src/Settings/Notifications/Notifications/NotificationEventItems.js

@@ -23,6 +23,7 @@ function NotificationEventItems(props) {
     onDownloadFailure,
     onImportFailure,
     onTrackRetag,
+    onApplicationUpdate,
     supportsOnGrab,
     supportsOnReleaseImport,
     supportsOnUpgrade,
@@ -31,7 +32,8 @@ function NotificationEventItems(props) {
     includeHealthWarnings,
     supportsOnDownloadFailure,
     supportsOnImportFailure,
-    supportsOnTrackRetag
+    supportsOnTrackRetag,
+    supportsOnApplicationUpdate
   } = item;
 
   return (
@@ -125,6 +127,17 @@ function NotificationEventItems(props) {
             />
           </div>
 
+          <div>
+            <FormInputGroup
+              type={inputTypes.CHECK}
+              name="onApplicationUpdate"
+              helpText={translate('OnApplicationUpdateHelpText')}
+              isDisabled={!supportsOnApplicationUpdate.value}
+              {...onApplicationUpdate}
+              onChange={onInputChange}
+            />
+          </div>
+
           <div>
             <FormInputGroup
               type={inputTypes.CHECK}
@@ -149,6 +162,7 @@ function NotificationEventItems(props) {
                 />
               </div>
           }
+
         </div>
       </div>
     </FormGroup>

frontend/src/Store/Actions/Settings/notifications.js

@@ -110,6 +110,7 @@ export default {
         selectedSchema.onDownloadFailure = selectedSchema.supportsOnDownloadFailure;
         selectedSchema.onImportFailure = selectedSchema.supportsOnImportFailure;
         selectedSchema.onTrackRetag = selectedSchema.supportsOnTrackRetag;
+        selectedSchema.onApplicationUpdate = selectedSchema.supportsOnApplicationUpdate;
 
         return selectedSchema;
       });

src/Lidarr.Api.V1/Notifications/NotificationResource.cs

@@ -13,6 +13,7 @@ namespace Lidarr.Api.V1.Notifications
         public bool OnDownloadFailure { get; set; }
         public bool OnImportFailure { get; set; }
         public bool OnTrackRetag { get; set; }
+        public bool OnApplicationUpdate { get; set; }
         public bool SupportsOnGrab { get; set; }
         public bool SupportsOnReleaseImport { get; set; }
         public bool SupportsOnUpgrade { get; set; }
@@ -22,6 +23,7 @@ namespace Lidarr.Api.V1.Notifications
         public bool SupportsOnDownloadFailure { get; set; }
         public bool SupportsOnImportFailure { get; set; }
         public bool SupportsOnTrackRetag { get; set; }
+        public bool SupportsOnApplicationUpdate { get; set; }
         public string TestCommand { get; set; }
     }
 
@@ -44,6 +46,7 @@ namespace Lidarr.Api.V1.Notifications
             resource.OnDownloadFailure = definition.OnDownloadFailure;
             resource.OnImportFailure = definition.OnImportFailure;
             resource.OnTrackRetag = definition.OnTrackRetag;
+            resource.OnApplicationUpdate = definition.OnApplicationUpdate;
             resource.SupportsOnGrab = definition.SupportsOnGrab;
             resource.SupportsOnReleaseImport = definition.SupportsOnReleaseImport;
             resource.SupportsOnUpgrade = definition.SupportsOnUpgrade;
@@ -53,6 +56,7 @@ namespace Lidarr.Api.V1.Notifications
             resource.SupportsOnDownloadFailure = definition.SupportsOnDownloadFailure;
             resource.SupportsOnImportFailure = definition.SupportsOnImportFailure;
             resource.SupportsOnTrackRetag = definition.SupportsOnTrackRetag;
+            resource.SupportsOnApplicationUpdate = definition.SupportsOnApplicationUpdate;
 
             return resource;
         }
@@ -74,6 +78,7 @@ namespace Lidarr.Api.V1.Notifications
             definition.OnDownloadFailure = resource.OnDownloadFailure;
             definition.OnImportFailure = resource.OnImportFailure;
             definition.OnTrackRetag = resource.OnTrackRetag;
+            definition.OnApplicationUpdate = resource.OnApplicationUpdate;
             definition.SupportsOnGrab = resource.SupportsOnGrab;
             definition.SupportsOnReleaseImport = resource.SupportsOnReleaseImport;
             definition.SupportsOnUpgrade = resource.SupportsOnUpgrade;
@@ -83,6 +88,7 @@ namespace Lidarr.Api.V1.Notifications
             definition.SupportsOnDownloadFailure = resource.SupportsOnDownloadFailure;
             definition.SupportsOnImportFailure = resource.SupportsOnImportFailure;
             definition.SupportsOnTrackRetag = resource.SupportsOnTrackRetag;
+            definition.SupportsOnApplicationUpdate = resource.SupportsOnApplicationUpdate;
 
             return definition;
         }

src/NzbDrone.Core.Test/NotificationTests/NotificationBaseFixture.cs

@@ -81,6 +81,11 @@ namespace NzbDrone.Core.Test.NotificationTests
             {
                 TestLogger.Info("OnTrackRetag was called");
             }
+
+            public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+            {
+                TestLogger.Info("OnApplicationUpdate was called");
+            }
         }
 
         private class TestNotificationWithNoEvents : NotificationBase<TestSetting>
@@ -119,6 +124,7 @@ namespace NzbDrone.Core.Test.NotificationTests
             notification.SupportsOnDownloadFailure.Should().BeTrue();
             notification.SupportsOnImportFailure.Should().BeTrue();
             notification.SupportsOnTrackRetag.Should().BeTrue();
+            notification.SupportsOnApplicationUpdate.Should().BeTrue();
         }
 
         [Test]
@@ -134,6 +140,7 @@ namespace NzbDrone.Core.Test.NotificationTests
             notification.SupportsOnDownloadFailure.Should().BeFalse();
             notification.SupportsOnImportFailure.Should().BeFalse();
             notification.SupportsOnTrackRetag.Should().BeFalse();
+            notification.SupportsOnApplicationUpdate.Should().BeFalse();
         }
     }
 }

src/NzbDrone.Core/Datastore/Migration/054_add_on_update_to_notifications.cs

@@ -0,0 +1,14 @@
+using FluentMigrator;
+using NzbDrone.Core.Datastore.Migration.Framework;
+
+namespace NzbDrone.Core.Datastore.Migration
+{
+    [Migration(054)]
+    public class add_on_update_to_notifications : NzbDroneMigrationBase
+    {
+        protected override void MainDbUpgrade()
+        {
+            Alter.Table("Notifications").AddColumn("OnApplicationUpdate").AsBoolean().WithDefaultValue(true);
+        }
+    }
+}

src/NzbDrone.Core/Datastore/TableMapping.cs

@@ -85,7 +85,8 @@ namespace NzbDrone.Core.Datastore
                   .Ignore(i => i.SupportsOnHealthIssue)
                   .Ignore(i => i.SupportsOnDownloadFailure)
                   .Ignore(i => i.SupportsOnImportFailure)
-                  .Ignore(i => i.SupportsOnTrackRetag);
+                  .Ignore(i => i.SupportsOnTrackRetag)
+                  .Ignore(i => i.SupportsOnApplicationUpdate);
 
             Mapper.Entity<MetadataDefinition>("Metadata").RegisterModel()
                   .Ignore(x => x.ImplementationName)

src/NzbDrone.Core/Localization/Core/en.json

@@ -375,13 +375,23 @@
   "NoTagsHaveBeenAddedYetAddTagsToLinkArtistsWithDelayProfilesRestrictionsOrNotificationsClickLinkTohttpswikiservarrcomlidarrsettingstagshereLinkToFindOutMoreAboutTagsInLidarr": "No tags have been added yet. Add tags to link artists with delay profiles, restrictions, or notifications. Click <Link to='https://wiki.servarr.com/lidarr/settings#tags'>here</Link> to find out more about tags in Lidarr.",
   "NotificationTriggers": "Notification Triggers",
   "NoUpdatesAreAvailable": "No updates are available",
+  "OnApplicationUpdate": "On Application Update",
+  "OnApplicationUpdateHelpText": "On Application Update",
+  "OnDownloadFailure": "On Download Failure",
   "OnDownloadFailureHelpText": "On Download Failure",
+  "OnGrab": "On Grab",
   "OnGrabHelpText": "On Grab",
+  "OnHealthIssue": "On Health Issue",
   "OnHealthIssueHelpText": "On Health Issue",
+  "OnImportFailure": "On Import Failure",
   "OnImportFailureHelpText": "On Import Failure",
+  "OnReleaseImport": "On Release Import",
   "OnReleaseImportHelpText": "On Release Import",
+  "OnRename": "On Rename",
   "OnRenameHelpText": "On Rename",
+  "OnTrackRetag": "On Track Retag",
   "OnTrackRetagHelpText": "On Track Retag",
+  "OnUpgrade": "On Upgrade",
   "OnUpgradeHelpText": "On Upgrade",
   "OpenBrowserOnStart": "Open browser on start",
   "Options": "Options",

src/NzbDrone.Core/Notifications/ApplicationUpdateMessage.cs

@@ -0,0 +1,16 @@
+using System;
+
+namespace NzbDrone.Core.Notifications
+{
+    public class ApplicationUpdateMessage
+    {
+        public string Message { get; set; }
+        public Version PreviousVersion { get; set; }
+        public Version NewVersion { get; set; }
+
+        public override string ToString()
+        {
+            return NewVersion.ToString();
+        }
+    }
+}

src/NzbDrone.Core/Notifications/Boxcar/Boxcar.cs

@@ -41,6 +41,11 @@ namespace NzbDrone.Core.Notifications.Boxcar
             _proxy.SendNotification(IMPORT_FAILURE_TITLE, message.Message, Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage message)
+        {
+            _proxy.SendNotification(APPLICATION_UPDATE_TITLE, message.Message, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/CustomScript/CustomScript.cs

@@ -155,6 +155,18 @@ namespace NzbDrone.Core.Notifications.CustomScript
             ExecuteScript(environmentVariables);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            var environmentVariables = new StringDictionary();
+
+            environmentVariables.Add("Lidarr_EventType", "ApplicationUpdate");
+            environmentVariables.Add("Lidarr_Update_Message", updateMessage.Message);
+            environmentVariables.Add("Lidarr_Update_NewVersion", updateMessage.NewVersion.ToString());
+            environmentVariables.Add("Lidarr_Update_PreviousVersion", updateMessage.PreviousVersion.ToString());
+
+            ExecuteScript(environmentVariables);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Discord/Discord.cs

@@ -309,6 +309,41 @@ namespace NzbDrone.Core.Notifications.Discord
             _proxy.SendPayload(payload, Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            var attachments = new List<Embed>
+                              {
+                                  new Embed
+                                  {
+                                      Author = new DiscordAuthor
+                                      {
+                                          Name = Settings.Author.IsNullOrWhiteSpace() ? Environment.MachineName : Settings.Author,
+                                          IconUrl = "https://raw.githubusercontent.com/lidarr/Lidarr/develop/Logo/256.png"
+                                      },
+                                      Title = APPLICATION_UPDATE_TITLE,
+                                      Timestamp = DateTime.UtcNow.ToString("yyyy-MM-ddTHH:mm:ss.fffZ"),
+                                      Color = (int)DiscordColors.Standard,
+                                      Fields = new List<DiscordField>()
+                                      {
+                                          new DiscordField()
+                                          {
+                                              Name = "Previous Version",
+                                              Value = updateMessage.PreviousVersion.ToString()
+                                          },
+                                          new DiscordField()
+                                          {
+                                              Name = "New Version",
+                                              Value = updateMessage.NewVersion.ToString()
+                                          }
+                                      },
+                                  }
+                              };
+
+            var payload = CreatePayload(null, attachments);
+
+            _proxy.SendPayload(payload, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Email/Email.cs

@@ -52,6 +52,13 @@ namespace NzbDrone.Core.Notifications.Email
             SendEmail(Settings, IMPORT_FAILURE_TITLE_BRANDED, message.Message);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            var body = $"{updateMessage.Message}";
+
+            SendEmail(Settings, APPLICATION_UPDATE_TITLE_BRANDED, body);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Gotify/Gotify.cs

@@ -44,6 +44,11 @@ namespace NzbDrone.Core.Notifications.Gotify
             _proxy.SendNotification(IMPORT_FAILURE_TITLE, message.Message, Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            _proxy.SendNotification(APPLICATION_UPDATE_TITLE, updateMessage.Message, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/INotification.cs

@@ -11,6 +11,7 @@ namespace NzbDrone.Core.Notifications
         void OnReleaseImport(AlbumDownloadMessage message);
         void OnRename(Artist artist);
         void OnHealthIssue(HealthCheck.HealthCheck healthCheck);
+        void OnApplicationUpdate(ApplicationUpdateMessage updateMessage);
         void OnDownloadFailure(DownloadFailedMessage message);
         void OnImportFailure(AlbumDownloadMessage message);
         void OnTrackRetag(TrackRetagMessage message);
@@ -20,6 +21,7 @@ namespace NzbDrone.Core.Notifications
         bool SupportsOnUpgrade { get; }
         bool SupportsOnRename { get; }
         bool SupportsOnHealthIssue { get; }
+        bool SupportsOnApplicationUpdate { get; }
         bool SupportsOnDownloadFailure { get; }
         bool SupportsOnImportFailure { get; }
         bool SupportsOnTrackRetag { get; }

src/NzbDrone.Core/Notifications/Join/Join.cs

@@ -32,6 +32,11 @@ namespace NzbDrone.Core.Notifications.Join
             _proxy.SendNotification(HEALTH_ISSUE_TITLE_BRANDED, message.Message, Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            _proxy.SendNotification(APPLICATION_UPDATE_TITLE_BRANDED, updateMessage.Message, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Mailgun/Mailgun.cs

@@ -34,6 +34,11 @@ namespace NzbDrone.Core.Notifications.Mailgun
             _proxy.SendNotification(HEALTH_ISSUE_TITLE, healthCheckMessage.Message, Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            _proxy.SendNotification(APPLICATION_UPDATE_TITLE, updateMessage.Message, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/MediaBrowser/MediaBrowser.cs

@@ -62,6 +62,14 @@ namespace NzbDrone.Core.Notifications.Emby
             }
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            if (Settings.Notify)
+            {
+                _mediaBrowserService.Notify(Settings, APPLICATION_UPDATE_TITLE_BRANDED, updateMessage.Message);
+            }
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Notifiarr/Notifiarr.cs

@@ -96,6 +96,18 @@ namespace NzbDrone.Core.Notifications.Notifiarr
             _proxy.SendNotification(variables, Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            var variables = new StringDictionary();
+
+            variables.Add("Lidarr_EventType", "ApplicationUpdate");
+            variables.Add("Lidarr_Update_Message", updateMessage.Message);
+            variables.Add("Lidarr_Update_NewVersion", updateMessage.NewVersion.ToString());
+            variables.Add("Lidarr_Update_PreviousVersion", updateMessage.PreviousVersion.ToString());
+
+            _proxy.SendNotification(variables, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/NotificationBase.cs

@@ -15,6 +15,7 @@ namespace NzbDrone.Core.Notifications
         protected const string DOWNLOAD_FAILURE_TITLE = "Download Failed";
         protected const string IMPORT_FAILURE_TITLE = "Import Failed";
         protected const string TRACK_RETAGGED_TITLE = "Track File Tags Updated";
+        protected const string APPLICATION_UPDATE_TITLE = "Application Updated";
 
         protected const string ALBUM_GRABBED_TITLE_BRANDED = "Lidarr - " + ALBUM_GRABBED_TITLE;
         protected const string ALBUM_DOWNLOADED_TITLE_BRANDED = "Lidarr - " + ALBUM_DOWNLOADED_TITLE;
@@ -22,6 +23,7 @@ namespace NzbDrone.Core.Notifications
         protected const string DOWNLOAD_FAILURE_TITLE_BRANDED = "Lidarr - " + DOWNLOAD_FAILURE_TITLE;
         protected const string IMPORT_FAILURE_TITLE_BRANDED = "Lidarr - " + IMPORT_FAILURE_TITLE;
         protected const string TRACK_RETAGGED_TITLE_BRANDED = "Lidarr - " + TRACK_RETAGGED_TITLE;
+        protected const string APPLICATION_UPDATE_TITLE_BRANDED = "Lidarr - " + APPLICATION_UPDATE_TITLE;
 
         public abstract string Name { get; }
 
@@ -64,6 +66,10 @@ namespace NzbDrone.Core.Notifications
         {
         }
 
+        public virtual void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+        }
+
         public virtual void ProcessQueue()
         {
         }
@@ -76,6 +82,7 @@ namespace NzbDrone.Core.Notifications
         public bool SupportsOnDownloadFailure => HasConcreteImplementation("OnDownloadFailure");
         public bool SupportsOnImportFailure => HasConcreteImplementation("OnImportFailure");
         public bool SupportsOnTrackRetag => HasConcreteImplementation("OnTrackRetag");
+        public bool SupportsOnApplicationUpdate => HasConcreteImplementation("OnApplicationUpdate");
 
         protected TSettings Settings => (TSettings)Definition.Settings;
 

src/NzbDrone.Core/Notifications/NotificationDefinition.cs

@@ -12,6 +12,7 @@ namespace NzbDrone.Core.Notifications
         public bool OnDownloadFailure { get; set; }
         public bool OnImportFailure { get; set; }
         public bool OnTrackRetag { get; set; }
+        public bool OnApplicationUpdate { get; set; }
         public bool SupportsOnGrab { get; set; }
         public bool SupportsOnReleaseImport { get; set; }
         public bool SupportsOnUpgrade { get; set; }
@@ -21,7 +22,8 @@ namespace NzbDrone.Core.Notifications
         public bool SupportsOnDownloadFailure { get; set; }
         public bool SupportsOnImportFailure { get; set; }
         public bool SupportsOnTrackRetag { get; set; }
+        public bool SupportsOnApplicationUpdate { get; set; }
 
-        public override bool Enable => OnGrab || OnReleaseImport || (OnReleaseImport && OnUpgrade) || OnHealthIssue || OnDownloadFailure || OnImportFailure || OnTrackRetag;
+        public override bool Enable => OnGrab || OnReleaseImport || (OnReleaseImport && OnUpgrade) || OnHealthIssue || OnDownloadFailure || OnImportFailure || OnTrackRetag || OnApplicationUpdate;
     }
 }

src/NzbDrone.Core/Notifications/NotificationFactory.cs

@@ -18,6 +18,7 @@ namespace NzbDrone.Core.Notifications
         List<INotification> OnDownloadFailureEnabled();
         List<INotification> OnImportFailureEnabled();
         List<INotification> OnTrackRetagEnabled();
+        List<INotification> OnApplicationUpdateEnabled();
     }
 
     public class NotificationFactory : ProviderFactory<INotification, NotificationDefinition>, INotificationFactory
@@ -67,6 +68,11 @@ namespace NzbDrone.Core.Notifications
             return GetAvailableProviders().Where(n => ((NotificationDefinition)n.Definition).OnTrackRetag).ToList();
         }
 
+        public List<INotification> OnApplicationUpdateEnabled()
+        {
+            return GetAvailableProviders().Where(n => ((NotificationDefinition)n.Definition).OnApplicationUpdate).ToList();
+        }
+
         public override void SetProviderCharacteristics(INotification provider, NotificationDefinition definition)
         {
             base.SetProviderCharacteristics(provider, definition);
@@ -79,6 +85,7 @@ namespace NzbDrone.Core.Notifications
             definition.SupportsOnDownloadFailure = provider.SupportsOnDownloadFailure;
             definition.SupportsOnImportFailure = provider.SupportsOnImportFailure;
             definition.SupportsOnTrackRetag = provider.SupportsOnTrackRetag;
+            definition.SupportsOnApplicationUpdate = provider.SupportsOnApplicationUpdate;
         }
     }
 }

src/NzbDrone.Core/Notifications/NotificationService.cs

@@ -11,6 +11,7 @@ using NzbDrone.Core.Messaging.Events;
 using NzbDrone.Core.Music;
 using NzbDrone.Core.Qualities;
 using NzbDrone.Core.ThingiProvider;
+using NzbDrone.Core.Update.History.Events;
 
 namespace NzbDrone.Core.Notifications
 {
@@ -23,7 +24,8 @@ namespace NzbDrone.Core.Notifications
           IHandle<AlbumImportIncompleteEvent>,
           IHandle<TrackFileRetaggedEvent>,
           IHandleAsync<RenameCompletedEvent>,
-          IHandleAsync<HealthCheckCompleteEvent>
+          IHandleAsync<HealthCheckCompleteEvent>,
+          IHandle<UpdateInstalledEvent>
     {
         private readonly INotificationFactory _notificationFactory;
         private readonly Logger _logger;
@@ -75,7 +77,7 @@ namespace NzbDrone.Core.Notifications
         {
             return string.Format("{0}:\n{1}",
                                  trackFile.Path,
-                                 string.Join("\n", diff.Select(x => $"{x.Key}: {FormatMissing(x.Value.Item1)} → {FormatMissing(x.Value.Item2)}")));
+                                 string.Join("\n", diff.Select(x => $"{x.Key}: {FormatMissing(x.Value.Item1)} ? {FormatMissing(x.Value.Item2)}")));
         }
 
         private bool ShouldHandleArtist(ProviderDefinition definition, Artist artist)
@@ -275,6 +277,26 @@ namespace NzbDrone.Core.Notifications
             }
         }
 
+        public void Handle(UpdateInstalledEvent message)
+        {
+            var updateMessage = new ApplicationUpdateMessage();
+            updateMessage.Message = $"Lidarr updated from {message.PreviousVerison.ToString()} to {message.NewVersion.ToString()}";
+            updateMessage.PreviousVersion = message.PreviousVerison;
+            updateMessage.NewVersion = message.NewVersion;
+
+            foreach (var notification in _notificationFactory.OnApplicationUpdateEnabled())
+            {
+                try
+                {
+                    notification.OnApplicationUpdate(updateMessage);
+                }
+                catch (Exception ex)
+                {
+                    _logger.Warn(ex, "Unable to send OnApplicationUpdate notification to: " + notification.Definition.Name);
+                }
+            }
+        }
+
         public void HandleAsync(RenameCompletedEvent message)
         {
             ProcessQueue();

src/NzbDrone.Core/Notifications/Prowl/Prowl.cs

@@ -31,6 +31,11 @@ namespace NzbDrone.Core.Notifications.Prowl
             _prowlProxy.SendNotification(HEALTH_ISSUE_TITLE, healthCheck.Message, Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            _prowlProxy.SendNotification(APPLICATION_UPDATE_TITLE, updateMessage.Message, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/PushBullet/PushBullet.cs

@@ -44,6 +44,11 @@ namespace NzbDrone.Core.Notifications.PushBullet
             _proxy.SendNotification(IMPORT_FAILURE_TITLE_BRANDED, message.Message, Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            _proxy.SendNotification(APPLICATION_UPDATE_TITLE_BRANDED, updateMessage.Message, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Pushover/Pushover.cs

@@ -41,6 +41,11 @@ namespace NzbDrone.Core.Notifications.Pushover
             _proxy.SendNotification(IMPORT_FAILURE_TITLE, message.Message, Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            _proxy.SendNotification(APPLICATION_UPDATE_TITLE, updateMessage.Message, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/SendGrid/SendGrid.cs

@@ -44,6 +44,11 @@ namespace NzbDrone.Core.Notifications.SendGrid
             _proxy.SendNotification(IMPORT_FAILURE_TITLE, message.Message, Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            _proxy.SendNotification(APPLICATION_UPDATE_TITLE, updateMessage.Message, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Slack/Slack.cs

@@ -135,6 +135,23 @@ namespace NzbDrone.Core.Notifications.Slack
             _proxy.SendPayload(payload, Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            var attachments = new List<Attachment>
+                              {
+                                  new Attachment
+                                  {
+                                      Title = Environment.MachineName,
+                                      Text = updateMessage.Message,
+                                      Color = "good"
+                                  }
+                              };
+
+            var payload = CreatePayload("Application Updated", attachments);
+
+            _proxy.SendPayload(payload, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Telegram/Telegram.cs

@@ -41,6 +41,11 @@ namespace NzbDrone.Core.Notifications.Telegram
             _proxy.SendNotification(IMPORT_FAILURE_TITLE, message.Message, Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            _proxy.SendNotification(APPLICATION_UPDATE_TITLE, updateMessage.Message, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Twitter/Twitter.cs

@@ -43,6 +43,11 @@ namespace NzbDrone.Core.Notifications.Twitter
             _twitterService.SendNotification($"Import Failed: {message.Message}", Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            _twitterService.SendNotification($"Application Updated: {updateMessage.Message}", Settings);
+        }
+
         public override object RequestAction(string action, IDictionary<string, string> query)
         {
             if (action == "startOAuth")

src/NzbDrone.Core/Notifications/Webhook/Webhook.cs

@@ -102,6 +102,19 @@ namespace NzbDrone.Core.Notifications.Webhook
             _proxy.SendWebhook(payload, Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            var payload = new WebhookApplicationUpdatePayload
+            {
+                EventType = WebhookEventType.ApplicationUpdate,
+                Message = updateMessage.Message,
+                PreviousVersion = updateMessage.PreviousVersion.ToString(),
+                NewVersion = updateMessage.NewVersion.ToString()
+            };
+
+            _proxy.SendWebhook(payload, Settings);
+        }
+
         public override string Name => "Webhook";
 
         public override ValidationResult Test()

src/NzbDrone.Core/Notifications/Webhook/WebhookApplicationUpdatePayload.cs

@@ -0,0 +1,11 @@
+using NzbDrone.Core.HealthCheck;
+
+namespace NzbDrone.Core.Notifications.Webhook
+{
+    public class WebhookApplicationUpdatePayload : WebhookPayload
+    {
+        public string Message { get; set; }
+        public string PreviousVersion { get; set; }
+        public string NewVersion { get; set; }
+    }
+}

src/NzbDrone.Core/Notifications/Webhook/WebhookEventType.cs

@@ -13,6 +13,7 @@ namespace NzbDrone.Core.Notifications.Webhook
         Download,
         Rename,
         Health,
-        Retag
+        Retag,
+        ApplicationUpdate
     }
 }

src/NzbDrone.Core/Notifications/Xbmc/Xbmc.cs

@@ -51,6 +51,11 @@ namespace NzbDrone.Core.Notifications.Xbmc
             UpdateAndClean(message.Artist);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            Notify(Settings, APPLICATION_UPDATE_TITLE_BRANDED, updateMessage.Message);
+        }
+
         public override string Name => "Kodi";
 
         public override ValidationResult Test()