diff --git a/README.md b/README.md
index 7e442c5..defd168 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,13 @@ This repository contains two integrations between Moodle and Talis Aspire. A des
 
 There are individual README files for each plugin which contain installation and other useful instructions.
 
+## Moodle 4
+
+Talis have not tested these plugins with Moodle 4.  We recommend using LTI 1.3 for all new integrations of Talis Aspire with Moodle, and suggest that people migrate to using LTI 1.3 instead of this plugin for all other existing installations.
+
+The `mod_aspirelists` plugin ONLY works with LTI 1.1. It will not be updated to work with LTI 1.3
+You can find our [documentation for Moodle and LTI 1.3 in the support knowledge base](https://support.talis.com/hc/en-us/articles/5519648821149-Talis-Aspire-LTI-1-3-Moodle-Set-Up-Instructions)
+
 ## Moodle 3.x mod_aspirelists
 
 The activity module has been tested with all current versions of Moodle. [See the full matrix of versions tested](https://travis-ci.org/talis/aspire-moodle-integration).
diff --git a/moodle-activity-module-lti-wrapper/README.md b/moodle-activity-module-lti-wrapper/README.md
index e7363c8..eda3002 100644
--- a/moodle-activity-module-lti-wrapper/README.md
+++ b/moodle-activity-module-lti-wrapper/README.md
@@ -4,6 +4,14 @@ Talis Aspire Reading Lists Moodle Integration
 Compatibility
 -------------
 
+## Moodle 3.11 to 4.x
+
+You are recommended to use Talis' LTI 1.3 intergration with Moodle 3.11 upwards. [Documentation is available on our support knowledge base](https://support.talis.com/hc/en-us/articles/5519648821149-Talis-Aspire-LTI-1-3-Moodle-Set-Up-Instructions)
+
+This plugin ONLY works with LTI 1.1 and is not going to be updated to use LTI 1.3
+
+## Moodle 3.x to 3.11
+
 The activity module has been tested with all current versions of Moodle. [See the full matrix of versions tested](https://travis-ci.org/talis/aspire-moodle-integration).
 If you do become aware of any issues affecting the plugin, then feel free to raise them with Talis directly, or by adding issues to the github repository here.