Support notification on pwsh startup when a new release is available (PowerShell#10689)

Author: daxian-dbw

src/Microsoft.PowerShell.ConsoleHost/host/msh/UpdatesNotification.cs

@@ -62,33 +62,7 @@ internal static void ShowUpdateNotification(PSHostUserInterface hostUI)
                     ? ManagedEntranceStrings.StableUpdateNotificationMessage
                     : ManagedEntranceStrings.PreviewUpdateNotificationMessage;
 
-                string notificationColor = string.Empty;
-                string resetColor = string.Empty;
-
-                string line2Padding = string.Empty;
-                string line3Padding = string.Empty;
-
-                // We calculate how much whitespace we need to make it look nice
-                if (hostUI.SupportsVirtualTerminal)
-                {
-                    // Use Warning Color
-                    notificationColor = "\x1B[7m";
-                    resetColor = "\x1B[0m";
-
-                    // The first line is longest, if the message changes, this needs to be updated
-                    int line1Length = notificationMsgTemplate.IndexOf('\n');
-                    int line2Length = notificationMsgTemplate.IndexOf('\n', line1Length + 1);
-                    int line3Length = notificationMsgTemplate.IndexOf('\n', line2Length + 1);
-                    line3Length -= line2Length + 1;
-                    line2Length -= line1Length + 1;
-
-                    line2Padding = line2Padding.PadRight(line1Length - line2Length + releaseTag.Length);
-                    // 3 represents the extra placeholder in the template
-                    line3Padding = line3Padding.PadRight(line1Length - line3Length + 3);
-                }
-
-                string notificationMsg = string.Format(CultureInfo.CurrentCulture, notificationMsgTemplate, releaseTag, notificationColor, resetColor, line2Padding, line3Padding);
-
+                string notificationMsg = string.Format(CultureInfo.CurrentCulture, notificationMsgTemplate, releaseTag);
                 hostUI.WriteLine(notificationMsg);
             }
         }
@@ -106,13 +80,6 @@ internal static async Task CheckForUpdates()
                 return;
             }
 
-            // Daily builds do not support update notifications
-            string preReleaseLabel = PSVersionInfo.PSCurrentVersion.PreReleaseLabel;
-            if (preReleaseLabel != null && preReleaseLabel.StartsWith("daily", StringComparison.OrdinalIgnoreCase))
-            {
-                return;
-            }
-
             // If the host is not connect to a network, skip the rest of the check.
             if (!NetworkInterface.GetIsNetworkAvailable())
             {

src/Microsoft.PowerShell.ConsoleHost/resources/ManagedEntranceStrings.resx

@@ -128,15 +128,15 @@ Type 'help' to get help.</value>
     <value>Warning: PowerShell detected that you might be using a screen reader and has disabled PSReadLine for compatibility purposes. If you want to re-enable it, run 'Import-Module PSReadLine'.</value>
   </data>
   <data name="PreviewUpdateNotificationMessage" xml:space="preserve">
-    <value>  {1} A new PowerShell preview release is available: v{0} {2}
-  {1} Upgrade now, or check out the release page at:{3}{2}
-  {1}   https://aka.ms/PowerShell-Release?tag=v{0} {4}{2}
+    <value>!! A new PowerShell preview release is available: v{0} !!
+Upgrade now, or check out the release page at:
+https://github.com/PowerShell/PowerShell/releases/tag/v{0}
 </value>
   </data>
   <data name="StableUpdateNotificationMessage" xml:space="preserve">
-    <value>  {1} A new PowerShell stable release is available: v{0} {2}
-  {1} Upgrade now, or check out the release page at:{3}{2}
-  {1}   https://aka.ms/PowerShell-Release?tag=v{0} {4}{2}
+    <value>!! A new PowerShell stable release is available: v{0} !!
+Upgrade now, or check out the release page at:
+https://github.com/PowerShell/PowerShell/releases/tag/v{0}
 </value>
   </data>
   <data name="UsageHelp" xml:space="preserve">

src/System.Management.Automation/engine/ExperimentalFeature/ExperimentalFeature.cs

@@ -117,7 +117,10 @@ static ExperimentalFeature()
                     description: "Support the ternary operator in PowerShell language"),
                 new ExperimentalFeature(
                     name: "PSErrorView",
-                    description: "New formatting for ErrorRecord")
+                    description: "New formatting for ErrorRecord"),
+                new ExperimentalFeature(
+                    name: "PSUpdatesNotification",
+                    description: "Print notification message when new releases are available")
             };
             EngineExperimentalFeatures = new ReadOnlyCollection<ExperimentalFeature>(engineFeatures);