diff --git a/gtk/gtkdebug.h b/gtk/gtkdebug.h
index 6bd9d98d00..f1cad3ea59 100644
--- a/gtk/gtkdebug.h
+++ b/gtk/gtkdebug.h
@@ -54,7 +54,7 @@ G_BEGIN_DECLS
  * @GTK_DEBUG_CONSTRAINTS: Information from the constraints solver
  * @GTK_DEBUG_BUILDER_OBJECTS: Log unused GtkBuilder objects
  * @GTK_DEBUG_A11Y: Information about accessibility state changes
- * @GTK_DEBUG_ICONFALLBACK: Information about icon fallback
+ * @GTK_DEBUG_ICONFALLBACK: Information about icon fallback. Since: 4.2
  *
  * Flags to use with gtk_set_debug_flags().
  *
diff --git a/gtk/gtkmenubutton.c b/gtk/gtkmenubutton.c
index 0c2d53ad8c..e1d8209ddc 100644
--- a/gtk/gtkmenubutton.c
+++ b/gtk/gtkmenubutton.c
@@ -497,6 +497,8 @@ gtk_menu_button_class_init (GtkMenuButtonClass *klass)
    * Whether the menu button acts as a primary menu.
    *
    * Primary menus can be opened using the <kbd>F10</kbd> key
+   *
+   * Since: 4.4
    */
   menu_button_props[PROP_PRIMARY] =
     g_param_spec_boolean ("primary",
@@ -1307,6 +1309,8 @@ gtk_menu_button_unroot (GtkWidget *widget)
  * Sets whether menu button acts as a primary menu.
  *
  * Primary menus can be opened with the <kbd>F10</kbd> key.
+ *
+ * Since: 4.4
  */
 void
 gtk_menu_button_set_primary (GtkMenuButton *menu_button,
diff --git a/gtk/gtkpasswordentrybuffer.c b/gtk/gtkpasswordentrybuffer.c
index 4a36d07729..39e75dc952 100644
--- a/gtk/gtkpasswordentrybuffer.c
+++ b/gtk/gtkpasswordentrybuffer.c
@@ -38,7 +38,7 @@
  *
  * `GtkPasswordEntry` uses a `GtkPasswordEntryBuffer`.
  *
- * Since 4.4.
+ * Since: 4.4
  */
 struct _GtkPasswordEntryBuffer
 {
diff --git a/gtk/meson.build b/gtk/meson.build
index 47ca9804a9..b42d793c86 100644
--- a/gtk/meson.build
+++ b/gtk/meson.build
@@ -123,7 +123,6 @@ gtk_private_sources = files([
   'gtkpanedhandle.c',
   'gtkpango.c',
   'gskpango.c',
-  'gtkpasswordentrybuffer.c',
   'gtkpathbar.c',
   'gtkplacessidebar.c',
   'gtkplacesview.c',
@@ -325,6 +324,7 @@ gtk_public_sources = files([
   'gtkpaned.c',
   'gtkpapersize.c',
   'gtkpasswordentry.c',
+  'gtkpasswordentrybuffer.c',
   'gtkpicture.c',
   'gtkpopover.c',
   'gtkpopovermenu.c',