diff --git a/layouts/_partials/functions/warnings.html b/layouts/_partials/functions/warnings.html
new file mode 100644
index 0000000..d7cb617
--- /dev/null
+++ b/layouts/_partials/functions/warnings.html
@@ -0,0 +1,9 @@
+{{ if ne .Params.showAppearanceSwitcher nil }}
+  {{ warnf "[CONGO] Theme parameter `showAppearanceSwitcher` has been renamed to `footer.showAppearanceSwitcher`. Please update your site configuration." }}
+{{ end }}
+{{ if ne .Params.showScrollToTop nil }}
+  {{ warnf "[CONGO] Theme parameter `showScrollToTop` has been renamed to `footer.showScrollToTop`. Please update your site configuration." }}
+{{ end }}
+{{ if ne .Params.logo nil }}
+  {{ warnf "[CONGO] Theme parameter `logo` has been renamed to `header.logo`. Please update your site configuration." }}
+{{ end }}