diff --git a/changelog.d/20251104_125525_xnpiochv_delete_enable_legacy_library_migrator_flag.md b/changelog.d/20251104_125525_xnpiochv_delete_enable_legacy_library_migrator_flag.md
new file mode 100644
index 00000000..50148cc2
--- /dev/null
+++ b/changelog.d/20251104_125525_xnpiochv_delete_enable_legacy_library_migrator_flag.md
@@ -0,0 +1,14 @@
+
+<!--
+Create a changelog entry for every new user-facing change. Please respect the following instructions:
+- Indicate breaking changes by prepending an explosion 💥 character.
+- Prefix your changes with either [Bugfix], [Improvement], [Feature], [Security], [Deprecation].
+- You may optionally append "(by @<author>)" at the end of the line, where "<author>" is either one (just one)
+of your GitHub username, real name or affiliated organization. These affiliations will be displayed in
+the release notes for every release.
+-->
+
+<!-- - 💥[Feature] Foobarize the blorginator. This breaks plugins by renaming the `FOO_DO` filter to `BAR_DO`. (by @regisb) -->
+<!-- - [Improvement] This is a non-breaking change. Life is good. (by @billgates) -->
+
+[Deprecation] The flag `ENABLE_LEGACY_LIBRARY_MIGRATOR` is deleted in patches.
diff --git a/tutormfe/patches/openedx-lms-development-settings b/tutormfe/patches/openedx-lms-development-settings
index 46d2139f..33a2a6cf 100644
--- a/tutormfe/patches/openedx-lms-development-settings
+++ b/tutormfe/patches/openedx-lms-development-settings
@@ -43,7 +43,6 @@ MFE_CONFIG["ENABLE_PROGRESS_GRAPH_SETTINGS"] = "true"
 MFE_CONFIG["ENABLE_TAGGING_TAXONOMY_PAGES"] = "true"
 MFE_CONFIG["ENABLE_UNIT_PAGE"] = "true"
 MFE_CONFIG["MEILISEARCH_ENABLED"] = "true"
-MFE_CONFIG["ENABLE_LEGACY_LIBRARY_MIGRATOR"] = "true"
 {% endif %}
 
 {% if get_mfe("discussions") %}
diff --git a/tutormfe/patches/openedx-lms-production-settings b/tutormfe/patches/openedx-lms-production-settings
index 467024f1..d45c718e 100644
--- a/tutormfe/patches/openedx-lms-production-settings
+++ b/tutormfe/patches/openedx-lms-production-settings
@@ -44,7 +44,6 @@ MFE_CONFIG["ENABLE_PROGRESS_GRAPH_SETTINGS"] = "true"
 MFE_CONFIG["ENABLE_TAGGING_TAXONOMY_PAGES"] = "true"
 MFE_CONFIG["ENABLE_UNIT_PAGE"] = "true"
 MFE_CONFIG["MEILISEARCH_ENABLED"] = "true"
-MFE_CONFIG["ENABLE_LEGACY_LIBRARY_MIGRATOR"] = "false"
 {% endif %}
 
 {% if get_mfe("discussions") %}