Update CHANGELOG.md

Author: taylortom

CHANGELOG.md

@@ -5,13 +5,19 @@ All notable changes to the Adapt authoring tool are documented in this file.
 **IMPORTANT**: For information on how to **correctly and safely** update your installation, please consult **INSTALL.md**.<br/>
 _Note that we adhere to the [semantic versioning](http://semver.org/) scheme for release numbering._
 
-## [0.11.0] - 2022-09-07
+## [0.11.0] - 2022-10-17
 
 The final minor release of the 'legacy' codebase. This release bundles critical security updates with some other minor improvements.
 
 **Breaking:** the requirement for a global install of grunt has been removed, and therefore the front-end application must now be built using npx (`npx grunt xxx`). See the wiki for more information.
 
-**This repository will receive no further updates and will be archived once the new codebase reaches a stable v1.0.0 (and after a grace period to allow existing users to migrate).**
+***
+
+**IMPORTANT NOTE:** an error message will be shown at the end of the upgrade process. This is related to a deprecated module used to apply data migrations between updates which has now been removed. **The error can be safely ignored**, and all migrations will be run automatically as a one-time fix once the app is started post-upgrade with with `node server`..
+
+***
+
+**Please note that this repository will receive no more major updates and will be archived once the new codebase reaches a stable v1.0.0 (and after a grace period to allow existing users to migrate).**
 
 ### Fixed
 - npm install scripts for adapt_framework should run as root ([#2566](https://github.com/adaptlearning/adapt_authoring/issues/2566))
@@ -20,6 +26,7 @@ The final minor release of the 'legacy' codebase. This release bundles critical
 - Framework update doesn't update src/core ([#2628](https://github.com/adaptlearning/adapt_authoring/issues/2628))
 - Export build error using latest framework release ([#2637](https://github.com/adaptlearning/adapt_authoring/issues/2637))
 - Need to update browserslist DB on build to avoid errors ([#2639](https://github.com/adaptlearning/adapt_authoring/issues/2639))
+- Fix migrations ([#2653](https://github.com/adaptlearning/adapt_authoring/issues/2653))
 
 ### Added
 - Login email address should be case-insensitive ([#2060](https://github.com/adaptlearning/adapt_authoring/issues/2060))