diff --git a/en/08_Changelogs/5.4.0.md b/en/08_Changelogs/5.4.0.md
index 7488d7a1..18ba2dea 100644
--- a/en/08_Changelogs/5.4.0.md
+++ b/en/08_Changelogs/5.4.0.md
@@ -156,6 +156,8 @@ The changes include:
 - [`SSViewer::execute_string()`](api:SilverStripe\View\SSViewer::execute_string()) has been deprecated. It will be removed without equivalent functionality to replace it.
 - [`ThemeResourceLoader::findTemplate()`](api:SilverStripe\View\ThemeResourceLoader::findTemplate()) has been deprecated. It will be removed without equivalent functionality to replace it.
 - [`FlushMiddleware`](api:SilverStripe\Control\Middleware\FlushMiddleware) has been deprecated. It will be replaced with flushing inside the Kernel directly.
+- The [`LeftAndMain.tree_class`](api:SilverStripe\Admin\LeftAndMain->tree_class) configuration property has been deprecated. It will be renamed `model_class`.
+- [`SiteConfigLeftAndMain::save_siteconfig()`](api:SilverStripe\SiteConfig\SiteConfigLeftAndMain::save_siteconfig()) has been deprecated. It will be replaced with [`save()`](api:SilverStripe\Admin\LeftAndMain::save()).
 
 ## Bug fixes