diff --git a/.github/workflows/branch-merge.yml b/.github/workflows/branch-merge.yml
new file mode 100644
index 0000000000000..5471c7239eb6d
--- /dev/null
+++ b/.github/workflows/branch-merge.yml
@@ -0,0 +1,26 @@
+# See https://github.com/dotnet/arcade/blob/e52018a/Documentation/Maestro/New-Inter-Branch-Merge-Approach.md
+
+name: Branch merge
+on:
+  workflow_dispatch:
+    inputs:
+      configuration_file_branch:
+        description: 'Branch to use for configuration file'
+        required: true
+        default: 'main'
+      configuration_file:
+        description: 'Path to configuration file to use to run the merge'
+        required: true
+        default: 'eng/config/branch-merge.jsonc'
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  merge:
+    if: github.repository == 'dotnet/roslyn'
+    uses: dotnet/arcade/.github/workflows/inter-branch-merge-base.yml@main
+    with:
+      configuration_file_path: ${{ inputs.configuration_file }}
+      configuration_file_branch: ${{ inputs.configuration_file_branch || 'main' }}
\ No newline at end of file
diff --git a/eng/config/branch-merge.jsonc b/eng/config/branch-merge.jsonc
new file mode 100644
index 0000000000000..b06a9f30e03b7
--- /dev/null
+++ b/eng/config/branch-merge.jsonc
@@ -0,0 +1,11 @@
+// Used by .github/workflows/scheduled-branch-merge.yml
+{
+    "merge-flow-configurations": {
+        // Merge main into feature branches
+        "main": {
+            "MergeToBranch": "features/collection-expression-arguments",
+            // ExtraSwitches is an optional parameter which is accepted by the script: https://github.com/dotnet/arcade/blob/main/.github/workflows/inter-branch-merge-base.yml.
+            "ExtraSwitches": "-QuietComments"
+        }
+    }
+}
\ No newline at end of file