Misc updates to .NET 8 -> .NET 11. (#23866)

Also run yamllint on some yaml files.

Author: rolfbjarne

.azuredevops/policies/branchClassification.yml

@@ -15,5 +15,6 @@ configuration:
           - net8.0
           - net9.0
           - net10.0
+          - net11.0
           - xcode*
         classification: production

.github/ISSUE_TEMPLATE/01-building-an-application.yml

@@ -23,10 +23,11 @@ body:
       description: In what target framework(s) do you see this issue?
       multiple: true
       options:
-      - net8.0-*
-      - net9.0-*
-      - net10.0-*
-      - Other
+        - net8.0-* [unsupported, please update to .NET 9+]
+        - net9.0-*
+        - net10.0-*
+        - net11.0-*
+        - Other
     validations:
       required: true
   - type: input

.github/ISSUE_TEMPLATE/02-running-an-application.yml

@@ -23,10 +23,11 @@ body:
       description: In what target framework(s) do you see this issue?
       multiple: true
       options:
-      - net8.0-*
-      - net9.0-*
-      - net10.0-*
-      - Other
+        - net8.0-* [unsupported, please update to .NET 9+]
+        - net9.0-*
+        - net10.0-*
+        - net11.0-*
+        - Other
     validations:
       required: true
   - type: input

.github/ISSUE_TEMPLATE/03-api.yml

@@ -33,10 +33,11 @@ body:
       description: In what target framework(s) do you see this issue?
       multiple: true
       options:
-      - net8.0-*
-      - net9.0-*
-      - net10.0-*
-      - Other
+        - net8.0-* [unsupported, please update to .NET 9+]
+        - net9.0-*
+        - net10.0-*
+        - net11.0-*
+        - Other
     validations:
       required: true
   - type: input

.github/ISSUE_TEMPLATE/04-bindings.yml

@@ -24,10 +24,11 @@ body:
       description: In what target framework(s) do you see this issue?
       multiple: true
       options:
-      - net8.0-*
-      - net9.0-*
-      - net10.0-*
-      - Other
+        - net8.0-* [unsupported, please update to .NET 9+]
+        - net9.0-*
+        - net10.0-*
+        - net11.0-*
+        - Other
     validations:
       required: true
   - type: input

.github/ISSUE_TEMPLATE/05-other.yml

@@ -23,10 +23,11 @@ body:
       description: In what target framework(s) do you see this issue?
       multiple: true
       options:
-      - net8.0-*
-      - net9.0-*
-      - net10.0-*
-      - Other
+        - net8.0-* [unsupported, please update to .NET 9+]
+        - net9.0-*
+        - net10.0-*
+        - net11.0-*
+        - Other
     validations:
       required: true
   - type: input

.github/copilot-instructions.md

@@ -274,6 +274,7 @@ void DoSomething (Action<bool, NSError> completion);
 
 - `main` - .NET 9 development
 - `net10.0` - .NET 10 development  
+- `net11.0` - .NET 11 development
 - `release/` branches for specific releases
 - Platform-specific branches for Xcode updates
 

tools/devops/automation/run-post-ci-build-vs-insertion.yml

@@ -41,6 +41,7 @@ resources:
             - net8.0
             - net9.0
             - net10.0
+            - net11.0
             - xcode*
         stages:
           - build_packages

tools/devops/automation/templates/main-stage.yml

@@ -117,6 +117,7 @@ stages:
             eq(variables['Build.SourceBranch'], 'refs/heads/net8.0'),
             eq(variables['Build.SourceBranch'], 'refs/heads/net9.0'),
             eq(variables['Build.SourceBranch'], 'refs/heads/net10.0'),
+            eq(variables['Build.SourceBranch'], 'refs/heads/net11.0'),
             startsWith(variables['Build.SourceBranch'], 'refs/heads/xcode'),
             eq(parameters.forceInsertion, true)
           )