diff --git a/doc/POST_UPGRADE.d/2.30.0~ynh1.md b/doc/POST_UPGRADE.d/2.30.0~ynh1.md
new file mode 100644
index 0000000..864af3b
--- /dev/null
+++ b/doc/POST_UPGRADE.d/2.30.0~ynh1.md
@@ -0,0 +1,5 @@
+There are a lot of broken plugins after the 2.30 migration.
+
+In order to migrate your blog, we had to deactivate all plugins by creating a `_disabled` file inside each plugin folder located in `__INSTALL_DIR__/plugins/`.
+
+Please remove these `_disabled` files one by one and make sure your blog is still working after each deletion.
\ No newline at end of file
diff --git a/scripts/upgrade b/scripts/upgrade
index dbcf199..fb57d17 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -58,6 +58,15 @@ fi
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
 
+if ynh_compare_current_package_version --comparison lt --version 2.30.0; then
+	ynh_print_warn --message="Disable all plugins before the migration. To reactivate them, navigate to all plugins at $install_dir/plugins/, and remove each \"_disabled\" file one by one, and make sure you blog works as expected after each deletion"
+	for folder in "$install_dir"/plugins/*/
+	do
+		ynh_print_warn --message="Plugin $folder disabled"
+		touch "$folder"/_disabled
+	done
+fi
+
 if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
 	ynh_script_progression --message="Upgrading source files..."