diff --git a/doc/changelog.md b/doc/changelog.md
index de4623ec5..b0265b194 100644
--- a/doc/changelog.md
+++ b/doc/changelog.md
@@ -11,6 +11,7 @@ To be released at some point in the future
 
 Description
 
+- Add sunset notice to the documentation
 - Miscellaneous test fixes
 - Update install patch for PyTorch 2.7.1+rocm6.3
 - Modernize typing syntax to Python 3.10+ standards
@@ -28,9 +29,12 @@ Description
 
 Detailed Notes
 
-- Enable control over monitoring of Models launched with `experiment.start()` by 
-  adding an optional boolean argument determining whether to monitor the particular 
-  model or not. The argument is set to True by default, so no changes are needed for 
+- Adds a sunset page to the documentation and a warning banner on the main
+  page noting the move to ROSE/RHAPSODY
+  ([SmartSim-PR804](https://github.com/CrayLabs/SmartSim/pull/804))
+- Enable control over monitoring of Models launched with `experiment.start()` by
+  adding an optional boolean argument determining whether to monitor the particular
+  model or not. The argument is set to True by default, so no changes are needed for
   the default behavior of monitoring all Models launched.
   ([SmartSim-PR788](https://github.com/CrayLabs/SmartSim/pull/788))
 - Updated tests which would create experiment in root directory, patched
diff --git a/doc/index.rst b/doc/index.rst
index e6f6f0c3b..e593a9c06 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -11,6 +11,7 @@
    :caption: Getting Started
 
    overview
+   sunset_notice
    installation_instructions/basic
    installation_instructions/platform
    contributing
diff --git a/doc/overview.rst b/doc/overview.rst
index 4bb921fd8..7f0584765 100644
--- a/doc/overview.rst
+++ b/doc/overview.rst
@@ -1,4 +1,7 @@
+.. warning::
 
+  SmartSim is being sunset as of May 2026. Please see the :ref:`sunset notice page <_sunset_notice_doc>`
+  for more information. Thank you to all of our collaborators!
 
 ************
 Introduction
diff --git a/doc/sunset_notice.rst b/doc/sunset_notice.rst
new file mode 100644
index 000000000..09f133178
--- /dev/null
+++ b/doc/sunset_notice.rst
@@ -0,0 +1,19 @@
+.. _sunset_notice_doc:
+
+#################
+Sunsetting Notice
+#################
+
+This release of SmartSim in May 2026 will be the final one as many of the ideas explored here
+will be continued on in the `RHAPSODY <https://radical-cybertools.github.io/rhapsody/>`_ and its
+related project `ROSE <https://radical-cybertools.github.io/ROSE/>`_
+
+The SmartSim project started back in 2019 to address the need of combining AI and scientific
+simultion on high-performance computing platforms. We have had a number
+of collaborators explore methods for using regression modelling for sub-grid scale parameterizations,
+reinforcement learning for flow control, and AI/ML-assisted experimental design. We very much appreciate
+all of our collaborators for letting us join them in their research especially.
+
+We will continue to keep this repository available for approximately another year. While we have
+contacted most of the active users, if you need help porting over your applications to
+ROSE/RHAPSODY contact the team: smartsim at hpe dot com.
\ No newline at end of file