From 36095a2be88dacee13ff3b1786c6e749d9572da0 Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 12:13:09 -0500
Subject: [PATCH 01/19] Update Project.csproj

---
 .../code-in-class-lib-without-using/Project.csproj            | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/example-templates/code-in-class-lib-without-using/Project.csproj b/tools/example-templates/code-in-class-lib-without-using/Project.csproj
index 2a8ce3fc5..e102b5daf 100644
--- a/tools/example-templates/code-in-class-lib-without-using/Project.csproj
+++ b/tools/example-templates/code-in-class-lib-without-using/Project.csproj
@@ -1,11 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <AssemblyName>$example-name</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Nullable>annotations</Nullable>
-    <LangVersion>9</LangVersion>
+    <LangVersion>10</LangVersion>
   </PropertyGroup>
 
 </Project>

From 826f645cf1290c6fe4d2cf759ffa06e9eadbaa2b Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 12:14:09 -0500
Subject: [PATCH 02/19] Update Project.csproj

---
 tools/example-templates/code-in-class-lib/Project.csproj | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/example-templates/code-in-class-lib/Project.csproj b/tools/example-templates/code-in-class-lib/Project.csproj
index 2a8ce3fc5..e102b5daf 100644
--- a/tools/example-templates/code-in-class-lib/Project.csproj
+++ b/tools/example-templates/code-in-class-lib/Project.csproj
@@ -1,11 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <AssemblyName>$example-name</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Nullable>annotations</Nullable>
-    <LangVersion>9</LangVersion>
+    <LangVersion>10</LangVersion>
   </PropertyGroup>
 
 </Project>

From e2f66f7f71cbaa7c0998d695c9655ae1cf6121f8 Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 12:14:34 -0500
Subject: [PATCH 03/19] Update Project.csproj

---
 .../code-in-main-without-using/Project.csproj                 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/example-templates/code-in-main-without-using/Project.csproj b/tools/example-templates/code-in-main-without-using/Project.csproj
index 342a6fa80..d7b27114c 100644
--- a/tools/example-templates/code-in-main-without-using/Project.csproj
+++ b/tools/example-templates/code-in-main-without-using/Project.csproj
@@ -2,11 +2,11 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <Nullable>annotations</Nullable>
     <AssemblyName>$example-name</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <LangVersion>9</LangVersion>
+    <LangVersion>10</LangVersion>
   </PropertyGroup>
 
 </Project>

From 81b01b82cb5f200281adc6a6bd7cb53e0498ba1f Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 12:14:57 -0500
Subject: [PATCH 04/19] Update Project.csproj

---
 tools/example-templates/code-in-main/Project.csproj | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/example-templates/code-in-main/Project.csproj b/tools/example-templates/code-in-main/Project.csproj
index 342a6fa80..d7b27114c 100644
--- a/tools/example-templates/code-in-main/Project.csproj
+++ b/tools/example-templates/code-in-main/Project.csproj
@@ -2,11 +2,11 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <Nullable>annotations</Nullable>
     <AssemblyName>$example-name</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <LangVersion>9</LangVersion>
+    <LangVersion>10</LangVersion>
   </PropertyGroup>
 
 </Project>

From a4d9bf65d3d884298847400e0a9e06a001c6fcc0 Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 12:15:35 -0500
Subject: [PATCH 05/19] Update Project.csproj

---
 tools/example-templates/code-in-partial-class/Project.csproj | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/example-templates/code-in-partial-class/Project.csproj b/tools/example-templates/code-in-partial-class/Project.csproj
index c069f5431..3f154641d 100644
--- a/tools/example-templates/code-in-partial-class/Project.csproj
+++ b/tools/example-templates/code-in-partial-class/Project.csproj
@@ -2,11 +2,11 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <AssemblyName>$example-name</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Nullable>annotations</Nullable>
-    <LangVersion>9</LangVersion>
+    <LangVersion>10</LangVersion>
   </PropertyGroup>
 
 </Project>

From 3beebb8dc559970ce06832c3d210c09da3c1b123 Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 12:16:37 -0500
Subject: [PATCH 06/19] Update Project.csproj

---
 .../standalone-console-without-using/Project.csproj            | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/example-templates/standalone-console-without-using/Project.csproj b/tools/example-templates/standalone-console-without-using/Project.csproj
index c108eadd6..64574c0c7 100644
--- a/tools/example-templates/standalone-console-without-using/Project.csproj
+++ b/tools/example-templates/standalone-console-without-using/Project.csproj
@@ -2,9 +2,10 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>disable</Nullable>
+    <LangVersion>10</LangVersion>
     <AssemblyName>$example-name</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Nullable>annotations</Nullable>

From fe2f463dc0018c89a446f2ab81921cd5c3326b4b Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 12:17:09 -0500
Subject: [PATCH 07/19] Update Project.csproj

---
 tools/example-templates/standalone-console/Project.csproj | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/example-templates/standalone-console/Project.csproj b/tools/example-templates/standalone-console/Project.csproj
index 281bd3de6..458838df7 100644
--- a/tools/example-templates/standalone-console/Project.csproj
+++ b/tools/example-templates/standalone-console/Project.csproj
@@ -2,9 +2,10 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>disable</Nullable>
+    <LangVersion>10</LangVersion>
     <AssemblyName>$example-name</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Nullable>annotations</Nullable>

From 1d4821fb5f9e55d0b17089b5d6c1ae5d7079b1b2 Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 12:17:46 -0500
Subject: [PATCH 08/19] Update Project.csproj

---
 .../standalone-lib-without-using/Project.csproj                | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/example-templates/standalone-lib-without-using/Project.csproj b/tools/example-templates/standalone-lib-without-using/Project.csproj
index 19e60edae..0afe1f71d 100644
--- a/tools/example-templates/standalone-lib-without-using/Project.csproj
+++ b/tools/example-templates/standalone-lib-without-using/Project.csproj
@@ -1,9 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <AssemblyName>$example-name</AssemblyName>
+    <LangVersion>10</LangVersion>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Nullable>annotations</Nullable>
   </PropertyGroup>

From 74905de2586498638c60db84758f8011bff51db5 Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 12:18:30 -0500
Subject: [PATCH 09/19] Update Project.csproj

---
 tools/example-templates/standalone-lib/Project.csproj | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/example-templates/standalone-lib/Project.csproj b/tools/example-templates/standalone-lib/Project.csproj
index 2a8ce3fc5..e102b5daf 100644
--- a/tools/example-templates/standalone-lib/Project.csproj
+++ b/tools/example-templates/standalone-lib/Project.csproj
@@ -1,11 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <AssemblyName>$example-name</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Nullable>annotations</Nullable>
-    <LangVersion>9</LangVersion>
+    <LangVersion>10</LangVersion>
   </PropertyGroup>
 
 </Project>

From e0ce648d7a94a63f55a5102d8ec3692de598d629 Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 16:55:52 -0500
Subject: [PATCH 10/19] Update Project.csproj

---
 .../code-in-class-lib-without-using/Project.csproj              | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/example-templates/code-in-class-lib-without-using/Project.csproj b/tools/example-templates/code-in-class-lib-without-using/Project.csproj
index e102b5daf..260d0b928 100644
--- a/tools/example-templates/code-in-class-lib-without-using/Project.csproj
+++ b/tools/example-templates/code-in-class-lib-without-using/Project.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <AssemblyName>$example-name</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Nullable>annotations</Nullable>

From 86feed5d66e4991221bbd7a75537e07282d76c4a Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 16:56:15 -0500
Subject: [PATCH 11/19] Update Project.csproj

---
 tools/example-templates/code-in-class-lib/Project.csproj | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/example-templates/code-in-class-lib/Project.csproj b/tools/example-templates/code-in-class-lib/Project.csproj
index e102b5daf..260d0b928 100644
--- a/tools/example-templates/code-in-class-lib/Project.csproj
+++ b/tools/example-templates/code-in-class-lib/Project.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <AssemblyName>$example-name</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Nullable>annotations</Nullable>

From 3280fa721b7d1f7a07e843ebc05fe07bc3c1ca38 Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 16:56:35 -0500
Subject: [PATCH 12/19] Update Project.csproj

---
 .../example-templates/code-in-main-without-using/Project.csproj | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/example-templates/code-in-main-without-using/Project.csproj b/tools/example-templates/code-in-main-without-using/Project.csproj
index d7b27114c..b8efcf715 100644
--- a/tools/example-templates/code-in-main-without-using/Project.csproj
+++ b/tools/example-templates/code-in-main-without-using/Project.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <Nullable>annotations</Nullable>
     <AssemblyName>$example-name</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>

From 2d5f4401d941713ed7ad3422497ec855d74ed5d5 Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 16:56:53 -0500
Subject: [PATCH 13/19] Update Project.csproj

---
 tools/example-templates/code-in-main/Project.csproj | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/example-templates/code-in-main/Project.csproj b/tools/example-templates/code-in-main/Project.csproj
index d7b27114c..b8efcf715 100644
--- a/tools/example-templates/code-in-main/Project.csproj
+++ b/tools/example-templates/code-in-main/Project.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <Nullable>annotations</Nullable>
     <AssemblyName>$example-name</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>

From 5b57f054eafac3b2d4c87006377fa17e699d4455 Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 16:57:12 -0500
Subject: [PATCH 14/19] Update Project.csproj

---
 tools/example-templates/code-in-partial-class/Project.csproj | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/example-templates/code-in-partial-class/Project.csproj b/tools/example-templates/code-in-partial-class/Project.csproj
index 3f154641d..af618da96 100644
--- a/tools/example-templates/code-in-partial-class/Project.csproj
+++ b/tools/example-templates/code-in-partial-class/Project.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <AssemblyName>$example-name</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Nullable>annotations</Nullable>

From 814156ca4626fc6215181b25d27dea364200f9e7 Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 16:57:38 -0500
Subject: [PATCH 15/19] Update Project.csproj

---
 .../standalone-console-without-using/Project.csproj             | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/example-templates/standalone-console-without-using/Project.csproj b/tools/example-templates/standalone-console-without-using/Project.csproj
index 64574c0c7..7c11671a2 100644
--- a/tools/example-templates/standalone-console-without-using/Project.csproj
+++ b/tools/example-templates/standalone-console-without-using/Project.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>disable</Nullable>
     <LangVersion>10</LangVersion>

From 786c74fbebe9af2189f33fed48952121e493276c Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 16:57:59 -0500
Subject: [PATCH 16/19] Update Project.csproj

---
 tools/example-templates/standalone-console/Project.csproj | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/example-templates/standalone-console/Project.csproj b/tools/example-templates/standalone-console/Project.csproj
index 458838df7..bf5da4fae 100644
--- a/tools/example-templates/standalone-console/Project.csproj
+++ b/tools/example-templates/standalone-console/Project.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>disable</Nullable>
     <LangVersion>10</LangVersion>

From d101639f8cc332632458ca18c2bc80ab846081c3 Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 16:58:20 -0500
Subject: [PATCH 17/19] Update Project.csproj

---
 .../standalone-lib-without-using/Project.csproj                 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/example-templates/standalone-lib-without-using/Project.csproj b/tools/example-templates/standalone-lib-without-using/Project.csproj
index 0afe1f71d..f60a0c0a1 100644
--- a/tools/example-templates/standalone-lib-without-using/Project.csproj
+++ b/tools/example-templates/standalone-lib-without-using/Project.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <AssemblyName>$example-name</AssemblyName>
     <LangVersion>10</LangVersion>

From a464dc8e08ee91ff9c9c4ec52a71d67e4a50e59e Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 16:58:47 -0500
Subject: [PATCH 18/19] Update Project.csproj

---
 tools/example-templates/standalone-lib/Project.csproj | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/example-templates/standalone-lib/Project.csproj b/tools/example-templates/standalone-lib/Project.csproj
index e102b5daf..260d0b928 100644
--- a/tools/example-templates/standalone-lib/Project.csproj
+++ b/tools/example-templates/standalone-lib/Project.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <AssemblyName>$example-name</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Nullable>annotations</Nullable>

From e7f0123287a63c6d6ade5acb41f47510470dbb19 Mon Sep 17 00:00:00 2001
From: Rex Jaeschke <rex@RexJaeschke.com>
Date: Wed, 28 Jan 2026 17:23:21 -0500
Subject: [PATCH 19/19] fix expectedErrors CS number

---
 standard/attributes.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/standard/attributes.md b/standard/attributes.md
index f330acba9..f6330063b 100644
--- a/standard/attributes.md
+++ b/standard/attributes.md
@@ -20,7 +20,7 @@ A generic class declaration shall not use `System.Attribute` as a direct or indi
 
 > *Example*:
 >
-> <!-- Example: {template:"standalone-lib", name:"AttributeCantBeGeneric", expectedErrors:["CS8773"], ignoredWarnings:["CS0169"]} -->
+> <!-- Example: {template:"standalone-lib", name:"AttributeCantBeGeneric", expectedErrors:["CS8936"], ignoredWarnings:["CS0169"]} -->
 > ```csharp
 > public class B : Attribute {}
 > public class C<T> : B {} // Error – generic cannot be an attribute