diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9e4c0f07..0bc3f24c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,10 +2,14 @@
 
 ## Main development branch
 
+- Document Open XDMoD compatibility in changelog ([\#31](https://github.com/ubccr/xdmod-data/pull/31)).
+
 ## v1.0.1 (2024-09-27)
 
 This release has bug fixes, performance improvements, and updates for compatibility, tests, and documentation.
 
+It is compatible with Open XDMoD versions 11.0.x and 10.5.x.
+
 - Add borders to README images ([\#12](https://github.com/ubccr/xdmod-data/pull/12)).
 - Create `PULL_REQUEST_TEMPLATE.md` ([\#13](https://github.com/ubccr/xdmod-data/pull/13)).
 - Add types of changes to pull request template ([\#15](https://github.com/ubccr/xdmod-data/pull/15)).
@@ -22,3 +26,5 @@ This release has bug fixes, performance improvements, and updates for compatibil
 ## v1.0.0 (2023-07-21)
 
 Initial release.
+
+Compatible with Open XDMoD version 10.5.x.
diff --git a/README.md b/README.md
index 5a52ee06..df216f20 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # xdmod-data
-As part of the Data Analytics Framework for [XDMoD](https://open.xdmod.org), this Python package provides API access to the data warehouse of instances of Open XDMoD version ≥10.5.
+As part of the Data Analytics Framework for [XDMoD](https://open.xdmod.org), this Python package provides API access to the data warehouse of instances of Open XDMoD.
 
 The package can be installed from PyPI via `pip install xdmod-data`.