Revert "Deprecate IStartupTask and AddStartupTask with warnings (#9763)"

ReubenBond · web-flow · commit 5bde55214673 · 2025-11-17T16:08:51.000-08:00
This reverts commit 1a1a8c1.
diff --git a/src/Orleans.Runtime/Hosting/SiloBuilderStartupExtensions.cs b/src/Orleans.Runtime/Hosting/SiloBuilderStartupExtensions.cs
@@ -28,7 +28,6 @@ public static class SiloBuilderStartupExtensions
         /// <returns>
         /// The provided <see cref="ISiloBuilder"/>.
         /// </returns>
-        [Obsolete("AddStartupTask is deprecated. Use BackgroundService or IHostedService instead. See https://learn.microsoft.com/dotnet/orleans/host/configuration-guide/startup-tasks for more information.", error: false)]
         public static ISiloBuilder AddStartupTask<TStartup>(
             this ISiloBuilder builder,
             int stage = ServiceLifecycleStage.Active)
@@ -52,7 +51,6 @@ public static ISiloBuilder AddStartupTask<TStartup>(
         /// <returns>
         /// The provided <see cref="ISiloBuilder"/>.
         /// </returns>
-        [Obsolete("AddStartupTask is deprecated. Use BackgroundService or IHostedService instead. See https://learn.microsoft.com/dotnet/orleans/host/configuration-guide/startup-tasks for more information.", error: false)]
         public static ISiloBuilder AddStartupTask(
             this ISiloBuilder builder,
             IStartupTask startupTask,
@@ -76,7 +74,6 @@ public static ISiloBuilder AddStartupTask(
         /// <returns>
         /// The provided <see cref="ISiloBuilder"/>.
         /// </returns>
-        [Obsolete("AddStartupTask is deprecated. Use BackgroundService or IHostedService instead. See https://learn.microsoft.com/dotnet/orleans/host/configuration-guide/startup-tasks for more information.", error: false)]
         public static ISiloBuilder AddStartupTask(
             this ISiloBuilder builder,
             Func<IServiceProvider, CancellationToken, Task> startupTask,
diff --git a/src/Orleans.Runtime/Lifecycle/IStartupTask.cs b/src/Orleans.Runtime/Lifecycle/IStartupTask.cs
@@ -1,13 +1,11 @@
-﻿using System;
-using System.Threading;
+﻿using System.Threading;
 using System.Threading.Tasks;
 
 namespace Orleans.Runtime
 {
     /// <summary>
     /// Defines an action to be taken after silo startup.
     /// </summary>
-    [Obsolete("IStartupTask is deprecated. Use BackgroundService or IHostedService instead. See https://learn.microsoft.com/dotnet/orleans/host/configuration-guide/startup-tasks for more information.", error: false)]
     public interface IStartupTask
     {
         /// <summary>
diff --git a/test/Tester/StartupTaskTests.cs b/test/Tester/StartupTaskTests.cs
@@ -8,8 +8,6 @@
 
 using Xunit;
 
-#pragma warning disable CS0618 // Type or member is obsolete
-
 namespace DefaultCluster.Tests
 {
     [TestCategory("BVT"), TestCategory("Lifecycle")]

Original file line number	Diff line number	Diff line change
`@@ -1,13 +1,11 @@`
`1`		`-using System;`
`2`		`-using System.Threading;`
	`1`	`+using System.Threading;`
`3`	`2`	`using System.Threading.Tasks;`
`4`	`3`
`5`	`4`	`namespace Orleans.Runtime`
`6`	`5`	`{`
`7`	`6`	`/// <summary>`
`8`	`7`	`/// Defines an action to be taken after silo startup.`
`9`	`8`	`/// </summary>`
`10`		`- [Obsolete("IStartupTask is deprecated. Use BackgroundService or IHostedService instead. See https://learn.microsoft.com/dotnet/orleans/host/configuration-guide/startup-tasks for more information.", error: false)]`
`11`	`9`	`public interface IStartupTask`
`12`	`10`	`{`
`13`	`11`	`/// <summary>`
Original file line number	Diff line number	Diff line change
`@@ -8,8 +8,6 @@`
`8`	`8`
`9`	`9`	`using Xunit;`
`10`	`10`
`11`		`-#pragma warning disable CS0618 // Type or member is obsolete`
`12`		`-`
`13`	`11`	`namespace DefaultCluster.Tests`
`14`	`12`	`{`
`15`	`13`	`[TestCategory("BVT"), TestCategory("Lifecycle")]`