diff --git a/releasenotes/source/index.rst b/releasenotes/source/index.rst
index 99e216d..50d9f94 100644
--- a/releasenotes/source/index.rst
+++ b/releasenotes/source/index.rst
@@ -8,5 +8,6 @@ Contents:
    :maxdepth: 1
 
    unreleased
+   train
    stein
    rocky
diff --git a/releasenotes/source/train.rst b/releasenotes/source/train.rst
new file mode 100644
index 0000000..5839003
--- /dev/null
+++ b/releasenotes/source/train.rst
@@ -0,0 +1,6 @@
+==========================
+Train Series Release Notes
+==========================
+
+.. release-notes::
+   :branch: stable/train