diff --git a/Obsolete.md b/Obsolete.md
index b44af9f..f2c2276 100644
--- a/Obsolete.md
+++ b/Obsolete.md
@@ -1,3 +1,22 @@
+# From v0.5.19 on
+The `popup_filters` configuration option now includes the following properties:
+- `close_on_filtering`
+- `image`
+- `image_active`
+- `image_html`
+- `placeholder_css_class`
+- `div_css_class`
+- `adjust_to_container`
+
+As a result, the following configuration options are no longer supported:
+- `popup_filters_close_on_filtering`
+- `popup_filters_image`
+- `popup_filters_image_active`
+- `popup_filters_image_html`
+- `popup_placeholder_css_class`
+- `popup_div_css_class`
+- `popup_filters_adjust_to_container`
+
 # From v0.5.17 on
 The `help_instructions` configuration option includes the following properties:
 - `target_id`