New: OnApplicationUpdate Notifications

Fixes #1422

(cherry picked from commit 9e175e28efcfc6ac3e414649b955a10fb0e951e7)

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

@@ -67,6 +67,7 @@ class Notification extends Component {
       onDownloadFailure,
       onImportFailure,
       onBookRetag,
+      onApplicationUpdate,
       supportsOnGrab,
       supportsOnReleaseImport,
       supportsOnUpgrade,
@@ -78,7 +79,8 @@ class Notification extends Component {
       supportsOnHealthIssue,
       supportsOnDownloadFailure,
       supportsOnImportFailure,
-      supportsOnBookRetag
+      supportsOnBookRetag,
+      supportsOnApplicationUpdate
     } = this.props;
 
     return (
@@ -187,6 +189,14 @@ class Notification extends Component {
             null
         }
 
+        {
+          supportsOnApplicationUpdate && onApplicationUpdate ?
+            <Label kind={kinds.SUCCESS} >
+              {translate('OnApplicationUpdate')}
+            </Label> :
+            null
+        }
+
         {
           !onGrab && !onReleaseImport && !onRename && !onBookRetag && !onHealthIssue && !onDownloadFailure && !onImportFailure ?
             <Label
@@ -234,6 +244,7 @@ Notification.propTypes = {
   onDownloadFailure: PropTypes.bool.isRequired,
   onImportFailure: PropTypes.bool.isRequired,
   onBookRetag: PropTypes.bool.isRequired,
+  onApplicationUpdate: PropTypes.bool.isRequired,
   supportsOnGrab: PropTypes.bool.isRequired,
   supportsOnReleaseImport: PropTypes.bool.isRequired,
   supportsOnUpgrade: PropTypes.bool.isRequired,
@@ -246,6 +257,7 @@ Notification.propTypes = {
   supportsOnDownloadFailure: PropTypes.bool.isRequired,
   supportsOnImportFailure: PropTypes.bool.isRequired,
   supportsOnBookRetag: PropTypes.bool.isRequired,
+  supportsOnApplicationUpdate: PropTypes.bool.isRequired,
   onConfirmDeleteNotification: PropTypes.func.isRequired
 };
 

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

@@ -27,6 +27,7 @@ function NotificationEventItems(props) {
     onDownloadFailure,
     onImportFailure,
     onBookRetag,
+    onApplicationUpdate,
     supportsOnGrab,
     supportsOnReleaseImport,
     supportsOnUpgrade,
@@ -38,7 +39,8 @@ function NotificationEventItems(props) {
     includeHealthWarnings,
     supportsOnDownloadFailure,
     supportsOnImportFailure,
-    supportsOnBookRetag
+    supportsOnBookRetag,
+    supportsOnApplicationUpdate
   } = item;
 
   return (
@@ -176,6 +178,17 @@ 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}
@@ -200,6 +213,7 @@ function NotificationEventItems(props) {
                 />
               </div>
           }
+
         </div>
       </div>
     </FormGroup>

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

@@ -114,6 +114,7 @@ export default {
         selectedSchema.onDownloadFailure = selectedSchema.supportsOnDownloadFailure;
         selectedSchema.onImportFailure = selectedSchema.supportsOnImportFailure;
         selectedSchema.onBookRetag = selectedSchema.supportsOnBookRetag;
+        selectedSchema.onApplicationUpdate = selectedSchema.supportsOnApplicationUpdate;
 
         return selectedSchema;
       });

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

@@ -96,6 +96,11 @@ namespace NzbDrone.Core.Test.NotificationTests
             {
                 TestLogger.Info("OnBookRetag was called");
             }
+
+            public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+            {
+                TestLogger.Info("OnApplicationUpdate was called");
+            }
         }
 
         private class TestNotificationWithNoEvents : NotificationBase<TestSetting>
@@ -138,6 +143,7 @@ namespace NzbDrone.Core.Test.NotificationTests
             notification.SupportsOnDownloadFailure.Should().BeTrue();
             notification.SupportsOnImportFailure.Should().BeTrue();
             notification.SupportsOnBookRetag.Should().BeTrue();
+            notification.SupportsOnApplicationUpdate.Should().BeTrue();
         }
 
         [Test]
@@ -157,6 +163,7 @@ namespace NzbDrone.Core.Test.NotificationTests
             notification.SupportsOnDownloadFailure.Should().BeFalse();
             notification.SupportsOnImportFailure.Should().BeFalse();
             notification.SupportsOnBookRetag.Should().BeFalse();
+            notification.SupportsOnApplicationUpdate.Should().BeFalse();
         }
     }
 }

src/NzbDrone.Core/Datastore/Migration/025_add_on_update_to_notifications.cs

@@ -0,0 +1,14 @@
+using FluentMigrator;
+using NzbDrone.Core.Datastore.Migration.Framework;
+
+namespace NzbDrone.Core.Datastore.Migration
+{
+    [Migration(025)]
+    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

@@ -90,7 +90,8 @@ namespace NzbDrone.Core.Datastore
                   .Ignore(i => i.SupportsOnHealthIssue)
                   .Ignore(i => i.SupportsOnDownloadFailure)
                   .Ignore(i => i.SupportsOnImportFailure)
-                  .Ignore(i => i.SupportsOnBookRetag);
+                  .Ignore(i => i.SupportsOnBookRetag)
+                  .Ignore(i => i.SupportsOnApplicationUpdate);
 
             Mapper.Entity<MetadataDefinition>("Metadata").RegisterModel()
                   .Ignore(x => x.ImplementationName)

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

@@ -497,6 +497,8 @@
   "OnBookFileDeleteHelpText": "On Book File Delete",
   "OnBookRetagHelpText": "On Book Retag",
   "OnBookTagUpdate": "On Book Tag Update",
+  "OnApplicationUpdate": "On Application Update",
+  "OnApplicationUpdateHelpText": "On Application Update",
   "OnDownloadFailure": "On Download Failure",
   "OnDownloadFailureHelpText": "On Download Failure",
   "OnGrab": "On Grab",

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

@@ -56,6 +56,11 @@ 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

@@ -214,6 +214,18 @@ namespace NzbDrone.Core.Notifications.CustomScript
             ExecuteScript(environmentVariables);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            var environmentVariables = new StringDictionary();
+
+            environmentVariables.Add("Readarr_EventType", "ApplicationUpdate");
+            environmentVariables.Add("Readarr_Update_Message", updateMessage.Message);
+            environmentVariables.Add("Readarr_Update_NewVersion", updateMessage.NewVersion.ToString());
+            environmentVariables.Add("Readarr_Update_PreviousVersion", updateMessage.PreviousVersion.ToString());
+
+            ExecuteScript(environmentVariables);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

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

@@ -184,6 +184,41 @@ 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/Readarr/Readarr/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/Discord/DiscordSettings.cs

@@ -25,6 +25,8 @@ namespace NzbDrone.Core.Notifications.Discord
 
         [FieldDefinition(2, Label = "Avatar", HelpText = "Change the avatar that is used for messages from this integration", Type = FieldType.Textbox)]
         public string Avatar { get; set; }
+        [FieldDefinition(3, Label = "Host", Advanced = true, HelpText = "Override the Host that shows for this notification, Blank is machine name", Type = FieldType.Textbox)]
+        public string Author { get; set; }
 
         public NzbDroneValidationResult Validate()
         {

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

@@ -0,0 +1,12 @@
+using Newtonsoft.Json;
+
+namespace NzbDrone.Core.Notifications.Discord.Payloads
+{
+    public class DiscordAuthor
+    {
+        public string Name { get; set; }
+
+        [JsonProperty("icon_url")]
+        public string IconUrl { get; set; }
+    }
+}

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

@@ -0,0 +1,9 @@
+namespace NzbDrone.Core.Notifications.Discord.Payloads
+{
+    public class DiscordField
+    {
+        public string Name { get; set; }
+        public string Value { get; set; }
+        public bool Inline { get; set; }
+    }
+}

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

@@ -0,0 +1,7 @@
+namespace NzbDrone.Core.Notifications.Discord.Payloads
+{
+    public class DiscordImage
+    {
+        public string Url { get; set; }
+    }
+}

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

@@ -1,3 +1,5 @@
+using System.Collections.Generic;
+
 namespace NzbDrone.Core.Notifications.Discord.Payloads
 {
     public class Embed
@@ -6,5 +8,11 @@ namespace NzbDrone.Core.Notifications.Discord.Payloads
         public string Title { get; set; }
         public string Text { get; set; }
         public int Color { get; set; }
+        public string Url { get; set; }
+        public DiscordAuthor Author { get; set; }
+        public DiscordImage Thumbnail { get; set; }
+        public DiscordImage Image { get; set; }
+        public string Timestamp { get; set; }
+        public List<DiscordField> Fields { get; set; }
     }
 }

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

@@ -80,6 +80,13 @@ 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

@@ -59,6 +59,11 @@ 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

@@ -14,6 +14,7 @@ namespace NzbDrone.Core.Notifications
         void OnBookDelete(BookDeleteMessage deleteMessage);
         void OnBookFileDelete(BookFileDeleteMessage deleteMessage);
         void OnHealthIssue(HealthCheck.HealthCheck healthCheck);
+        void OnApplicationUpdate(ApplicationUpdateMessage updateMessage);
         void OnDownloadFailure(DownloadFailedMessage message);
         void OnImportFailure(BookDownloadMessage message);
         void OnBookRetag(BookRetagMessage message);
@@ -27,6 +28,7 @@ namespace NzbDrone.Core.Notifications
         bool SupportsOnBookFileDelete { get; }
         bool SupportsOnBookFileDeleteForUpgrade { get; }
         bool SupportsOnHealthIssue { get; }
+        bool SupportsOnApplicationUpdate { get; }
         bool SupportsOnDownloadFailure { get; }
         bool SupportsOnImportFailure { get; }
         bool SupportsOnBookRetag { get; }

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

@@ -47,6 +47,11 @@ 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

@@ -49,6 +49,11 @@ 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/Notifiarr/Notifiarr.cs

@@ -159,6 +159,18 @@ namespace NzbDrone.Core.Notifications.Notifiarr
             _proxy.SendNotification(variables, Settings);
         }
 
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            var variables = new StringDictionary();
+
+            variables.Add("Readarr_EventType", "ApplicationUpdate");
+            variables.Add("Readarr_Update_Message", updateMessage.Message);
+            variables.Add("Readarr_Update_NewVersion", updateMessage.NewVersion.ToString());
+            variables.Add("Readarr_Update_PreviousVersion", updateMessage.PreviousVersion.ToString());
+
+            _proxy.SendNotification(variables, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/NotificationBase.cs

@@ -18,6 +18,7 @@ namespace NzbDrone.Core.Notifications
         protected const string DOWNLOAD_FAILURE_TITLE = "Download Failed";
         protected const string IMPORT_FAILURE_TITLE = "Import Failed";
         protected const string BOOK_RETAGGED_TITLE = "Book File Tags Updated";
+        protected const string APPLICATION_UPDATE_TITLE = "Application Updated";
 
         protected const string BOOK_GRABBED_TITLE_BRANDED = "Readarr - " + BOOK_GRABBED_TITLE;
         protected const string BOOK_DOWNLOADED_TITLE_BRANDED = "Readarr - " + BOOK_DOWNLOADED_TITLE;
@@ -28,6 +29,7 @@ namespace NzbDrone.Core.Notifications
         protected const string DOWNLOAD_FAILURE_TITLE_BRANDED = "Readarr - " + DOWNLOAD_FAILURE_TITLE;
         protected const string IMPORT_FAILURE_TITLE_BRANDED = "Readarr - " + IMPORT_FAILURE_TITLE;
         protected const string BOOK_RETAGGED_TITLE_BRANDED = "Readarr - " + BOOK_RETAGGED_TITLE;
+        protected const string APPLICATION_UPDATE_TITLE_BRANDED = "Readarr - " + APPLICATION_UPDATE_TITLE;
 
         public abstract string Name { get; }
 
@@ -82,6 +84,10 @@ namespace NzbDrone.Core.Notifications
         {
         }
 
+        public virtual void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+        }
+
         public virtual void ProcessQueue()
         {
         }
@@ -98,6 +104,7 @@ namespace NzbDrone.Core.Notifications
         public bool SupportsOnDownloadFailure => HasConcreteImplementation("OnDownloadFailure");
         public bool SupportsOnImportFailure => HasConcreteImplementation("OnImportFailure");
         public bool SupportsOnBookRetag => HasConcreteImplementation("OnBookRetag");
+        public bool SupportsOnApplicationUpdate => HasConcreteImplementation("OnApplicationUpdate");
 
         protected TSettings Settings => (TSettings)Definition.Settings;
 

src/NzbDrone.Core/Notifications/NotificationDefinition.cs

@@ -16,6 +16,7 @@ namespace NzbDrone.Core.Notifications
         public bool OnDownloadFailure { get; set; }
         public bool OnImportFailure { get; set; }
         public bool OnBookRetag { get; set; }
+        public bool OnApplicationUpdate { get; set; }
         public bool SupportsOnGrab { get; set; }
         public bool SupportsOnReleaseImport { get; set; }
         public bool SupportsOnUpgrade { get; set; }
@@ -29,7 +30,8 @@ namespace NzbDrone.Core.Notifications
         public bool SupportsOnDownloadFailure { get; set; }
         public bool SupportsOnImportFailure { get; set; }
         public bool SupportsOnBookRetag { get; set; }
+        public bool SupportsOnApplicationUpdate { get; set; }
 
-        public override bool Enable => OnGrab || OnReleaseImport || (OnReleaseImport && OnUpgrade) || OnAuthorDelete || OnBookDelete || OnBookFileDelete || OnBookFileDeleteForUpgrade || OnHealthIssue || OnDownloadFailure || OnImportFailure || OnBookRetag;
+        public override bool Enable => OnGrab || OnReleaseImport || (OnReleaseImport && OnUpgrade) || OnAuthorDelete || OnBookDelete || OnBookFileDelete || OnBookFileDeleteForUpgrade || OnHealthIssue || OnDownloadFailure || OnImportFailure || OnBookRetag || OnApplicationUpdate;
     }
 }

src/NzbDrone.Core/Notifications/NotificationFactory.cs

@@ -22,6 +22,7 @@ namespace NzbDrone.Core.Notifications
         List<INotification> OnDownloadFailureEnabled();
         List<INotification> OnImportFailureEnabled();
         List<INotification> OnBookRetagEnabled();
+        List<INotification> OnApplicationUpdateEnabled();
     }
 
     public class NotificationFactory : ProviderFactory<INotification, NotificationDefinition>, INotificationFactory
@@ -91,6 +92,11 @@ namespace NzbDrone.Core.Notifications
             return GetAvailableProviders().Where(n => ((NotificationDefinition)n.Definition).OnBookRetag).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);
@@ -107,6 +113,7 @@ namespace NzbDrone.Core.Notifications
             definition.SupportsOnDownloadFailure = provider.SupportsOnDownloadFailure;
             definition.SupportsOnImportFailure = provider.SupportsOnImportFailure;
             definition.SupportsOnBookRetag = provider.SupportsOnBookRetag;
+            definition.SupportsOnApplicationUpdate = provider.SupportsOnApplicationUpdate;
         }
     }
 }

src/NzbDrone.Core/Notifications/NotificationService.cs

@@ -12,6 +12,7 @@ using NzbDrone.Core.MediaFiles.Events;
 using NzbDrone.Core.Messaging.Events;
 using NzbDrone.Core.Qualities;
 using NzbDrone.Core.ThingiProvider;
+using NzbDrone.Core.Update.History.Events;
 
 namespace NzbDrone.Core.Notifications
 {
@@ -26,7 +27,8 @@ namespace NzbDrone.Core.Notifications
           IHandle<DownloadFailedEvent>,
           IHandle<BookImportIncompleteEvent>,
           IHandle<BookFileRetaggedEvent>,
-          IHandleAsync<DeleteCompletedEvent>
+          IHandleAsync<DeleteCompletedEvent>,
+          IHandle<UpdateInstalledEvent>
     {
         private readonly INotificationFactory _notificationFactory;
         private readonly Logger _logger;
@@ -346,6 +348,26 @@ namespace NzbDrone.Core.Notifications
             }
         }
 
+        public void Handle(UpdateInstalledEvent message)
+        {
+            var updateMessage = new ApplicationUpdateMessage();
+            updateMessage.Message = $"Readarr 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(DeleteCompletedEvent message)
         {
             ProcessQueue();

src/NzbDrone.Core/Notifications/Ntfy/Ntfy.cs

@@ -47,6 +47,11 @@ namespace NzbDrone.Core.Notifications.Ntfy
             _proxy.SendNotification(HEALTH_ISSUE_TITLE_BRANDED, healthCheck.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/Prowl/Prowl.cs

@@ -46,6 +46,11 @@ 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

@@ -59,6 +59,11 @@ 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

@@ -56,6 +56,11 @@ 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

@@ -59,6 +59,11 @@ 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

@@ -183,6 +183,23 @@ 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

@@ -56,6 +56,11 @@ 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

@@ -58,6 +58,11 @@ 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

@@ -133,6 +133,19 @@ 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

@@ -14,6 +14,7 @@ namespace NzbDrone.Core.Notifications.Webhook
         Rename,
         Delete,
         Health,
-        Retag
+        Retag,
+        ApplicationUpdate
     }
 }

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

@@ -17,6 +17,7 @@ namespace Readarr.Api.V1.Notifications
         public bool OnDownloadFailure { get; set; }
         public bool OnImportFailure { get; set; }
         public bool OnBookRetag { get; set; }
+        public bool OnApplicationUpdate { get; set; }
         public bool SupportsOnGrab { get; set; }
         public bool SupportsOnReleaseImport { get; set; }
         public bool SupportsOnUpgrade { get; set; }
@@ -30,6 +31,7 @@ namespace Readarr.Api.V1.Notifications
         public bool SupportsOnDownloadFailure { get; set; }
         public bool SupportsOnImportFailure { get; set; }
         public bool SupportsOnBookRetag { get; set; }
+        public bool SupportsOnApplicationUpdate { get; set; }
         public string TestCommand { get; set; }
     }
 
@@ -56,6 +58,7 @@ namespace Readarr.Api.V1.Notifications
             resource.OnDownloadFailure = definition.OnDownloadFailure;
             resource.OnImportFailure = definition.OnImportFailure;
             resource.OnBookRetag = definition.OnBookRetag;
+            resource.OnApplicationUpdate = definition.OnApplicationUpdate;
             resource.SupportsOnGrab = definition.SupportsOnGrab;
             resource.SupportsOnReleaseImport = definition.SupportsOnReleaseImport;
             resource.SupportsOnUpgrade = definition.SupportsOnUpgrade;
@@ -69,6 +72,7 @@ namespace Readarr.Api.V1.Notifications
             resource.SupportsOnDownloadFailure = definition.SupportsOnDownloadFailure;
             resource.SupportsOnImportFailure = definition.SupportsOnImportFailure;
             resource.SupportsOnBookRetag = definition.SupportsOnBookRetag;
+            resource.SupportsOnApplicationUpdate = definition.SupportsOnApplicationUpdate;
 
             return resource;
         }
@@ -94,6 +98,7 @@ namespace Readarr.Api.V1.Notifications
             definition.OnDownloadFailure = resource.OnDownloadFailure;
             definition.OnImportFailure = resource.OnImportFailure;
             definition.OnBookRetag = resource.OnBookRetag;
+            definition.OnApplicationUpdate = resource.OnApplicationUpdate;
             definition.SupportsOnGrab = resource.SupportsOnGrab;
             definition.SupportsOnReleaseImport = resource.SupportsOnReleaseImport;
             definition.SupportsOnUpgrade = resource.SupportsOnUpgrade;
@@ -107,6 +112,7 @@ namespace Readarr.Api.V1.Notifications
             definition.SupportsOnDownloadFailure = resource.SupportsOnDownloadFailure;
             definition.SupportsOnImportFailure = resource.SupportsOnImportFailure;
             definition.SupportsOnBookRetag = resource.SupportsOnBookRetag;
+            definition.SupportsOnApplicationUpdate = resource.SupportsOnApplicationUpdate;
 
             return definition;
         }