diff --git a/.azuredevops/policies/branchClassification.yml b/.azuredevops/policies/branchClassification.yml
index 3be73709e89e..8c6e930fc219 100644
--- a/.azuredevops/policies/branchClassification.yml
+++ b/.azuredevops/policies/branchClassification.yml
@@ -15,5 +15,6 @@ configuration:
           - net8.0
           - net9.0
           - net10.0
+          - net11.0
           - xcode*
         classification: production
diff --git a/.github/ISSUE_TEMPLATE/01-building-an-application.yml b/.github/ISSUE_TEMPLATE/01-building-an-application.yml
index 69e676519684..0e68d4f29f89 100644
--- a/.github/ISSUE_TEMPLATE/01-building-an-application.yml
+++ b/.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
diff --git a/.github/ISSUE_TEMPLATE/02-running-an-application.yml b/.github/ISSUE_TEMPLATE/02-running-an-application.yml
index 965eeca780ca..465ef3d4988c 100644
--- a/.github/ISSUE_TEMPLATE/02-running-an-application.yml
+++ b/.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
diff --git a/.github/ISSUE_TEMPLATE/03-api.yml b/.github/ISSUE_TEMPLATE/03-api.yml
index 2f8bf43b45b9..602f2a8bd4f9 100644
--- a/.github/ISSUE_TEMPLATE/03-api.yml
+++ b/.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
diff --git a/.github/ISSUE_TEMPLATE/04-bindings.yml b/.github/ISSUE_TEMPLATE/04-bindings.yml
index befd8f1beb03..c4fb0fb82d37 100644
--- a/.github/ISSUE_TEMPLATE/04-bindings.yml
+++ b/.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
diff --git a/.github/ISSUE_TEMPLATE/05-other.yml b/.github/ISSUE_TEMPLATE/05-other.yml
index d11f4b8b1201..237a6a7b26be 100644
--- a/.github/ISSUE_TEMPLATE/05-other.yml
+++ b/.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
diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index 1e9058bebdde..a95422795811 100644
--- a/.github/copilot-instructions.md
+++ b/.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
 
diff --git a/tools/devops/automation/run-post-ci-build-vs-insertion.yml b/tools/devops/automation/run-post-ci-build-vs-insertion.yml
index 28505b939ea4..d65055b426a0 100644
--- a/tools/devops/automation/run-post-ci-build-vs-insertion.yml
+++ b/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
diff --git a/tools/devops/automation/templates/main-stage.yml b/tools/devops/automation/templates/main-stage.yml
index 611cdd42a0f0..c06cfb6e6828 100644
--- a/tools/devops/automation/templates/main-stage.yml
+++ b/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)
           )