diff --git a/RELEASES.md b/RELEASES.md
index 1660913cd..33cc56992 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -1,5 +1,13 @@
 # Releases
 
+
+## Upcomming 0.9.7.post1
+
+#### New features
+The next release will add cost functions between linear operators following [A Spectral-Grassmann Wasserstein metric for operator representations of dynamical systems](https://arxiv.org/pdf/2509.24920).
+
+
+
 ## 0.9.7.dev0
 
 This new release adds support for sparse cost matrices and a new lazy EMD solver that computes distances on-the-fly from coordinates, reducing memory usage from O(n×m) to O(n+m). Both implementations are backend-agnostic and preserve gradient computation for automatic differentiation.
diff --git a/ot/sgot.py b/ot/sgot.py
new file mode 100644
index 000000000..5811827da
--- /dev/null
+++ b/ot/sgot.py
@@ -0,0 +1,8 @@
+# -*- coding: utf-8 -*-
+"""
+Optimal transport for linear operators.
+"""
+
+# Author: Sienna O'Shea  <osheasienna@gmail.com>
+#         Thibaut Germain<thibaut.germain.pro@gmail.com>
+# License: MIT License