App-vNext · martincostello · Feb 13, 2026 · Mar 10, 2026 · Mar 10, 2026 · Mar 11, 2026
diff --git a/Directory.Packages.props b/Directory.Packages.props
@@ -13,11 +13,11 @@
     <PackageVersion Include="Microsoft.CodeAnalysis.BannedApiAnalyzers" Version="4.14.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.PublicApiAnalyzers" Version="4.14.0" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Memory" Version="8.0.1" />
-    <PackageVersion Include="Microsoft.Extensions.Configuration" Version="10.0.8" />
-    <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="10.0.8" />
+    <PackageVersion Include="Microsoft.Extensions.Configuration" Version="11.0.0-preview.5.26302.115" />
+    <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="11.0.0-preview.5.26302.115" />
     <PackageVersion Include="Microsoft.Extensions.Http.Resilience" Version="10.6.0" />
-    <PackageVersion Include="Microsoft.Extensions.Logging.Console" Version="10.0.8" />
-    <PackageVersion Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="10.0.8" />
+    <PackageVersion Include="Microsoft.Extensions.Logging.Console" Version="11.0.0-preview.5.26302.115" />
+    <PackageVersion Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="11.0.0-preview.5.26302.115" />
     <PackageVersion Include="Microsoft.Extensions.TimeProvider.Testing" Version="10.4.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.6.0" />
     <PackageVersion Include="MinVer" Version="7.0.0" />
@@ -66,4 +66,12 @@
     <PackageVersion Update="System.Diagnostics.DiagnosticSource" Version="10.0.0" />
     <PackageVersion Update="System.Threading.RateLimiting" Version="10.0.0" />
   </ItemGroup>
+  <ItemGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible($(TargetFramework), 'net11.0'))">
+    <PackageVersion Update="Microsoft.Bcl.TimeProvider" Version="11.0.0-preview.5.26302.115" />
+    <PackageVersion Update="Microsoft.Extensions.Logging" Version="11.0.0-preview.5.26302.115" />
+    <PackageVersion Update="Microsoft.Extensions.Logging.Abstractions" Version="11.0.0-preview.5.26302.115" />
+    <PackageVersion Update="Microsoft.Extensions.Options" Version="11.0.0-preview.5.26302.115" />
+    <PackageVersion Update="System.Diagnostics.DiagnosticSource" Version="11.0.0-preview.5.26302.115" />
+    <PackageVersion Update="System.Threading.RateLimiting" Version="11.0.0-preview.5.26302.115" />
+  </ItemGroup>
 </Project>
diff --git a/bench/Polly.Benchmarks/Cache.cs b/bench/Polly.Benchmarks/Cache.cs
@@ -14,8 +14,8 @@ public class Cache
     private static readonly Policy SyncPolicyHit = Policy.Cache(CacheProvider, TimeSpan.MaxValue);
     private static readonly AsyncPolicy AsyncPolicyHit = Policy.CacheAsync(CacheProvider, TimeSpan.MaxValue);
 
-    private static readonly Context HitContext = new(nameof(HitContext));
-    private static readonly Context MissContext = new(nameof(MissContext));
+    private static readonly Context HitContext = [with(nameof(HitContext))];
+    private static readonly Context MissContext = [with(nameof(MissContext))];
 
     [GlobalSetup]
     public Task GlobalSetup()

diff --git a/bench/Polly.Benchmarks/Polly.Benchmarks.csproj b/bench/Polly.Benchmarks/Polly.Benchmarks.csproj
@@ -2,7 +2,7 @@
   <PropertyGroup>
     <IsPackable>false</IsPackable>
     <OutputType>Exe</OutputType>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0</TargetFrameworks>
     <Nullable>enable</Nullable>
     <ProjectType>Benchmark</ProjectType>
     <NoWarn>$(NoWarn);CA1822;IDE0060</NoWarn>
@@ -13,7 +13,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" VersionOverride="10.0.5" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" VersionOverride="11.0.0-preview.5.26302.115" />
     <ProjectReference Include="..\..\src\Polly\Polly.csproj" />
   </ItemGroup>
 </Project>
diff --git a/bench/Polly.Core.Benchmarks/Polly.Core.Benchmarks.csproj b/bench/Polly.Core.Benchmarks/Polly.Core.Benchmarks.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0</TargetFrameworks>
     <RootNamespace>Polly</RootNamespace>
     <ImplicitUsings>true</ImplicitUsings>
     <ProjectType>Benchmark</ProjectType>

diff --git a/bench/benchmarks.ps1 b/bench/benchmarks.ps1
@@ -20,6 +20,6 @@ if ($Interactive -ne $true) {
 
 $project = Join-Path "Polly.Core.Benchmarks" "Polly.Core.Benchmarks.csproj"
 
-dotnet run --configuration $Configuration --framework net10.0 --project $project $additionalArgs
+dotnet run --configuration $Configuration --framework net11.0 --project $project $additionalArgs
 
 exit $LASTEXITCODE
diff --git a/eng/Common.props b/eng/Common.props
@@ -2,8 +2,9 @@
   <PropertyGroup>
     <AccelerateBuildsInVisualStudio>true</AccelerateBuildsInVisualStudio>
     <AssemblyOriginatorKeyFile>$(MSBuildThisFileDirectory)..\Polly.snk</AssemblyOriginatorKeyFile>
+    <CheckSdkVulnerabilities>true</CheckSdkVulnerabilities>
     <ImplicitUsings>enable</ImplicitUsings>
-    <LangVersion>latest</LangVersion>
+    <LangVersion>preview</LangVersion>
     <NuGetAuditMode>direct</NuGetAuditMode>
     <SignAssembly>true</SignAssembly>
     <PollyStrongNamePublicKey Condition=" '$(SignAssembly)' == 'true' ">0024000004800000940000000602000000240000525341310004000001000100150819e3494f97263a3abdd18e5e0c47b04e6c0ede44a6c51d50b545d403ceeb7cbb32d18dbbbcdd1d88a87d7b73206b126be134b0609c36aa3cb31dd2e47e393293102809b8d77f192f3188618a42e651c14ebf05f8f5b76aa91b431642b23497ed82b65d63791cdaa31d4282a2d6cbabc3fe0745b6b6690c417cabf6a1349c</PollyStrongNamePublicKey>

diff --git a/eng/Test.targets b/eng/Test.targets
@@ -5,6 +5,11 @@
     <DisableImplicitNuGetFallbackFolder>true</DisableImplicitNuGetFallbackFolder>
   </PropertyGroup>
 
+  <!-- TODO Move to common when this is no longer a preview feature -->
+  <PropertyGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))">
+    <Features>$(Features);runtime-async=on</Features>
+  </PropertyGroup>
+
   <ItemGroup>
     <Using Include="Shouldly" />
     <Using Include="Xunit" />

diff --git a/global.json b/global.json
@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "10.0.301",
+    "version": "11.0.100-preview.5.26302.115",
     "allowPrerelease": false
   },
   "msbuild-sdks": {

diff --git a/samples/Chaos/Chaos.csproj b/samples/Chaos/Chaos.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
     <RootNamespace>Chaos</RootNamespace>
   </PropertyGroup>
 

diff --git a/samples/DependencyInjection/DependencyInjection.csproj b/samples/DependencyInjection/DependencyInjection.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/samples/Extensibility/Extensibility.csproj b/samples/Extensibility/Extensibility.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/samples/GenericPipelines/GenericPipelines.csproj b/samples/GenericPipelines/GenericPipelines.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/samples/Intro.FSharp/Intro.FSharp.fsproj b/samples/Intro.FSharp/Intro.FSharp.fsproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/samples/Intro.VisualBasic/Intro.VisualBasic.vbproj b/samples/Intro.VisualBasic/Intro.VisualBasic.vbproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/samples/Intro/Intro.csproj b/samples/Intro/Intro.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/samples/Retries/Retries.csproj b/samples/Retries/Retries.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/src/Polly/AsyncPolicy.ExecuteOverloads.cs b/src/Polly/AsyncPolicy.ExecuteOverloads.cs
@@ -21,7 +21,7 @@ public Task ExecuteAsync(Func<Task> action) =>
     /// <returns>A <see cref="Task" /> which completes when <see cref="AsyncPolicy"/> is registered.</returns>
     [DebuggerStepThrough]
     public Task ExecuteAsync(Func<Context, Task> action, IDictionary<string, object> contextData) =>
-        ExecuteAsync((ctx, _) => action(ctx), new Context(contextData), DefaultCancellationToken, DefaultContinueOnCapturedContext);
+        ExecuteAsync((ctx, _) => action(ctx), [with(contextData)], DefaultCancellationToken, DefaultContinueOnCapturedContext);
 
     /// <summary>
     ///     Executes the specified asynchronous action within the policy.
@@ -52,7 +52,7 @@ public Task ExecuteAsync(Func<CancellationToken, Task> action, CancellationToken
     /// <returns>A <see cref="Task" /> which completes when <see cref="AsyncPolicy"/> is registered.</returns>
     [DebuggerStepThrough]
     public Task ExecuteAsync(Func<Context, CancellationToken, Task> action, IDictionary<string, object> contextData, CancellationToken cancellationToken) =>
-        ExecuteAsync(action, new Context(contextData), cancellationToken, DefaultContinueOnCapturedContext);
+        ExecuteAsync(action, [with(contextData)], cancellationToken, DefaultContinueOnCapturedContext);
 
     /// <summary>
     ///     Executes the specified asynchronous action within the policy.
@@ -88,7 +88,7 @@ public Task ExecuteAsync(Func<CancellationToken, Task> action, CancellationToken
     /// <returns>A <see cref="Task" /> which completes when <see cref="AsyncPolicy"/> is registered.</returns>
     [DebuggerStepThrough]
     public Task ExecuteAsync(Func<Context, CancellationToken, Task> action, IDictionary<string, object> contextData, CancellationToken cancellationToken, bool continueOnCapturedContext) =>
-        ExecuteAsync(action, new Context(contextData), cancellationToken, continueOnCapturedContext);
+        ExecuteAsync(action, [with(contextData)], cancellationToken, continueOnCapturedContext);
 
     /// <summary>
     ///     Executes the specified asynchronous action within the policy.
@@ -131,7 +131,7 @@ public Task<TResult> ExecuteAsync<TResult>(Func<Task<TResult>> action) =>
     /// <returns>The value returned by the action.</returns>
     [DebuggerStepThrough]
     public Task<TResult> ExecuteAsync<TResult>(Func<Context, Task<TResult>> action, IDictionary<string, object> contextData) =>
-        ExecuteAsync((ctx, _) => action(ctx), new Context(contextData), DefaultCancellationToken, DefaultContinueOnCapturedContext);
+        ExecuteAsync((ctx, _) => action(ctx), [with(contextData)], DefaultCancellationToken, DefaultContinueOnCapturedContext);
 
     /// <summary>
     ///     Executes the specified asynchronous action within the policy and returns the result.
@@ -165,7 +165,7 @@ public Task<TResult> ExecuteAsync<TResult>(Func<CancellationToken, Task<TResult>
     /// <returns>The value returned by the action.</returns>
     [DebuggerStepThrough]
     public Task<TResult> ExecuteAsync<TResult>(Func<Context, CancellationToken, Task<TResult>> action, IDictionary<string, object> contextData, CancellationToken cancellationToken) =>
-        ExecuteAsync(action, new Context(contextData), cancellationToken, DefaultContinueOnCapturedContext);
+        ExecuteAsync(action, [with(contextData)], cancellationToken, DefaultContinueOnCapturedContext);
 
     /// <summary>
     ///     Executes the specified asynchronous action within the policy and returns the result.
@@ -204,7 +204,7 @@ public Task<TResult> ExecuteAsync<TResult>(Func<CancellationToken, Task<TResult>
     /// <exception cref="ArgumentNullException">Thrown when <paramref name="contextData"/> is <see langword="null"/>.</exception>
     [DebuggerStepThrough]
     public Task<TResult> ExecuteAsync<TResult>(Func<Context, CancellationToken, Task<TResult>> action, IDictionary<string, object> contextData, CancellationToken cancellationToken, bool continueOnCapturedContext) =>
-        ExecuteAsync(action, new Context(contextData), cancellationToken, continueOnCapturedContext);
+        ExecuteAsync(action, [with(contextData)], cancellationToken, continueOnCapturedContext);
 
     /// <summary>
     ///     Executes the specified asynchronous action within the policy and returns the result.
@@ -251,7 +251,7 @@ public Task<PolicyResult> ExecuteAndCaptureAsync(Func<Task> action) =>
     /// <exception cref="ArgumentNullException">Thrown when <paramref name="contextData"/> is <see langword="null"/>.</exception>
     [DebuggerStepThrough]
     public Task<PolicyResult> ExecuteAndCaptureAsync(Func<Context, Task> action, IDictionary<string, object> contextData) =>
-        ExecuteAndCaptureAsync((ctx, _) => action(ctx), new Context(contextData), DefaultCancellationToken, DefaultContinueOnCapturedContext);
+        ExecuteAndCaptureAsync((ctx, _) => action(ctx), [with(contextData)], DefaultCancellationToken, DefaultContinueOnCapturedContext);
 
     /// <summary>
     ///     Executes the specified asynchronous action within the policy and returns the captured result.
@@ -283,7 +283,7 @@ public Task<PolicyResult> ExecuteAndCaptureAsync(Func<CancellationToken, Task> a
     /// <exception cref="ArgumentNullException">Thrown when <paramref name="contextData"/> is <see langword="null"/>.</exception>
     [DebuggerStepThrough]
     public Task<PolicyResult> ExecuteAndCaptureAsync(Func<Context, CancellationToken, Task> action, IDictionary<string, object> contextData, CancellationToken cancellationToken) =>
-        ExecuteAndCaptureAsync(action, new Context(contextData), cancellationToken, DefaultContinueOnCapturedContext);
+        ExecuteAndCaptureAsync(action, [with(contextData)], cancellationToken, DefaultContinueOnCapturedContext);
 
     /// <summary>
     ///     Executes the specified asynchronous action within the policy and returns the captured result.
@@ -319,7 +319,7 @@ public Task<PolicyResult> ExecuteAndCaptureAsync(Func<CancellationToken, Task> a
     /// <exception cref="ArgumentNullException">Thrown when <paramref name="contextData"/> is <see langword="null"/>.</exception>
     [DebuggerStepThrough]
     public Task<PolicyResult> ExecuteAndCaptureAsync(Func<Context, CancellationToken, Task> action, IDictionary<string, object> contextData, CancellationToken cancellationToken, bool continueOnCapturedContext) =>
-        ExecuteAndCaptureAsync(action, new Context(contextData), cancellationToken, continueOnCapturedContext);
+        ExecuteAndCaptureAsync(action, [with(contextData)], cancellationToken, continueOnCapturedContext);
 
     /// <summary>
     ///     Executes the specified asynchronous action within the policy and returns the captured result.
@@ -363,7 +363,7 @@ public Task<PolicyResult<TResult>> ExecuteAndCaptureAsync<TResult>(Func<Task<TRe
     /// <exception cref="ArgumentNullException">Thrown when <paramref name="contextData"/> is <see langword="null"/>.</exception>
     [DebuggerStepThrough]
     public Task<PolicyResult<TResult>> ExecuteAndCaptureAsync<TResult>(Func<Context, Task<TResult>> action, IDictionary<string, object> contextData) =>
-        ExecuteAndCaptureAsync((ctx, _) => action(ctx), new Context(contextData), DefaultCancellationToken, DefaultContinueOnCapturedContext);
+        ExecuteAndCaptureAsync((ctx, _) => action(ctx), [with(contextData)], DefaultCancellationToken, DefaultContinueOnCapturedContext);
 
     /// <summary>
     /// Executes the specified asynchronous action within the policy and returns the result.
@@ -398,7 +398,7 @@ public Task<PolicyResult<TResult>> ExecuteAndCaptureAsync<TResult>(Func<Cancella
     /// <exception cref="ArgumentNullException">Thrown when <paramref name="contextData"/> is <see langword="null"/>.</exception>
     [DebuggerStepThrough]
     public Task<PolicyResult<TResult>> ExecuteAndCaptureAsync<TResult>(Func<Context, CancellationToken, Task<TResult>> action, IDictionary<string, object> contextData, CancellationToken cancellationToken) =>
-        ExecuteAndCaptureAsync(action, new Context(contextData), cancellationToken, DefaultContinueOnCapturedContext);
+        ExecuteAndCaptureAsync(action, [with(contextData)], cancellationToken, DefaultContinueOnCapturedContext);
 
     /// <summary>
     ///     Executes the specified asynchronous action within the policy and returns the result.
@@ -437,7 +437,7 @@ public Task<PolicyResult<TResult>> ExecuteAndCaptureAsync<TResult>(Func<Cancella
     /// <exception cref="ArgumentNullException">Thrown when <paramref name="contextData"/> is <see langword="null"/>.</exception>
     [DebuggerStepThrough]
     public Task<PolicyResult<TResult>> ExecuteAndCaptureAsync<TResult>(Func<Context, CancellationToken, Task<TResult>> action, IDictionary<string, object> contextData, CancellationToken cancellationToken, bool continueOnCapturedContext) =>
-        ExecuteAndCaptureAsync(action, new Context(contextData), cancellationToken, continueOnCapturedContext);
+        ExecuteAndCaptureAsync(action, [with(contextData)], cancellationToken, continueOnCapturedContext);
 
     /// <summary>
     ///     Executes the specified asynchronous action within the policy and returns the result.