diff --git a/core/doc_data.h b/core/doc_data.h
index 04bd55eabae..6a7f4355db5 100644
--- a/core/doc_data.h
+++ b/core/doc_data.h
@@ -522,6 +522,10 @@ public:
 		String type;
 		String data_type;
 		String description;
+		bool is_deprecated = false;
+		String deprecated_message;
+		bool is_experimental = false;
+		String experimental_message;
 		String default_value;
 		String keywords;
 		bool operator<(const ThemeItemDoc &p_theme_item) const {
@@ -550,6 +554,16 @@ public:
 				doc.description = p_dict["description"];
 			}
 
+			if (p_dict.has("deprecated")) {
+				doc.is_deprecated = true;
+				doc.deprecated_message = p_dict["deprecated"];
+			}
+
+			if (p_dict.has("experimental")) {
+				doc.is_experimental = true;
+				doc.experimental_message = p_dict["experimental"];
+			}
+
 			if (p_dict.has("default_value")) {
 				doc.default_value = p_dict["default_value"];
 			}
@@ -579,6 +593,14 @@ public:
 				dict["description"] = p_doc.description;
 			}
 
+			if (p_doc.is_deprecated) {
+				dict["deprecated"] = p_doc.deprecated_message;
+			}
+
+			if (p_doc.is_experimental) {
+				dict["experimental"] = p_doc.experimental_message;
+			}
+
 			if (!p_doc.default_value.is_empty()) {
 				dict["default_value"] = p_doc.default_value;
 			}
diff --git a/doc/class.xsd b/doc/class.xsd
index f0e12410532..28e02e870d9 100644
--- a/doc/class.xsd
+++ b/doc/class.xsd
@@ -246,6 +246,8 @@
 											<xs:attribute type="xs:string" name="data_type" />
 											<xs:attribute type="xs:string" name="type" />
 											<xs:attribute type="xs:string" name="default" use="optional" />
+											<xs:attribute type="xs:string" name="deprecated" use="optional" />
+											<xs:attribute type="xs:string" name="experimental" use="optional" />
 											<xs:attribute type="xs:string" name="keywords" use="optional" />
 										</xs:extension>
 									</xs:simpleContent>
diff --git a/doc/tools/make_rst.py b/doc/tools/make_rst.py
index 761a7f8f4a1..29e10ea4905 100755
--- a/doc/tools/make_rst.py
+++ b/doc/tools/make_rst.py
@@ -1311,9 +1311,6 @@ def make_rst_class(class_def: ClassDef, state: State, dry_run: bool, output_dir:
 
                 if property_def.text is not None and property_def.text.strip() != "":
                     f.write(f"{format_text_block(property_def.text.strip(), property_def, state)}\n\n")
-                    if property_def.type_name.type_name in PACKED_ARRAY_TYPES:
-                        tmp = f"[b]Note:[/b] The returned array is [i]copied[/i] and any changes to it will not update the original property value. See [{property_def.type_name.type_name}] for more details."
-                        f.write(f"{format_text_block(tmp, property_def, state)}\n\n")
                 elif property_def.deprecated is None and property_def.experimental is None:
                     f.write(".. container:: contribute\n\n\t")
                     f.write(
@@ -1323,6 +1320,11 @@ def make_rst_class(class_def: ClassDef, state: State, dry_run: bool, output_dir:
                         + "\n\n"
                     )
 
+                # Add copy note to built-in properties returning `Packed*Array`.
+                if property_def.type_name.type_name in PACKED_ARRAY_TYPES:
+                    copy_note = f"[b]Note:[/b] The returned array is [i]copied[/i] and any changes to it will not update the original property value. See [{property_def.type_name.type_name}] for more details."
+                    f.write(f"{format_text_block(copy_note, property_def, state)}\n\n")
+
                 index += 1
 
         # Constructor, Method, Operator descriptions
diff --git a/editor/doc_tools.cpp b/editor/doc_tools.cpp
index bf5b717c19d..76934c9ec6e 100644
--- a/editor/doc_tools.cpp
+++ b/editor/doc_tools.cpp
@@ -277,6 +277,10 @@ static void merge_theme_properties(Vector<DocData::ThemeItemDoc> &p_to, const Ve
 		// Check found entry on name and data type.
 		if (to.name == from.name && to.data_type == from.data_type) {
 			to.description = from.description;
+			to.is_deprecated = from.is_deprecated;
+			to.deprecated_message = from.deprecated_message;
+			to.is_experimental = from.is_experimental;
+			to.experimental_message = from.experimental_message;
 			to.keywords = from.keywords;
 		}
 	}
@@ -1420,6 +1424,14 @@ Error DocTools::_load(Ref<XMLParser> parser) {
 								prop2.type = parser->get_named_attribute_value("type");
 								ERR_FAIL_COND_V(!parser->has_attribute("data_type"), ERR_FILE_CORRUPT);
 								prop2.data_type = parser->get_named_attribute_value("data_type");
+								if (parser->has_attribute("deprecated")) {
+									prop2.is_deprecated = true;
+									prop2.deprecated_message = parser->get_named_attribute_value("deprecated");
+								}
+								if (parser->has_attribute("experimental")) {
+									prop2.is_experimental = true;
+									prop2.experimental_message = parser->get_named_attribute_value("experimental");
+								}
 								if (parser->has_attribute("keywords")) {
 									prop2.keywords = parser->get_named_attribute_value("keywords");
 								}
@@ -1738,6 +1750,12 @@ Error DocTools::save_classes(const String &p_default_path, const HashMap<String,
 				if (!ti.default_value.is_empty()) {
 					additional_attributes += String(" default=\"") + ti.default_value.xml_escape(true) + "\"";
 				}
+				if (ti.is_deprecated) {
+					additional_attributes += " deprecated=\"" + ti.deprecated_message.xml_escape(true) + "\"";
+				}
+				if (ti.is_experimental) {
+					additional_attributes += " experimental=\"" + ti.experimental_message.xml_escape(true) + "\"";
+				}
 				if (!ti.keywords.is_empty()) {
 					additional_attributes += String(" keywords=\"") + ti.keywords.xml_escape(true) + "\"";
 				}
diff --git a/editor/editor_help.cpp b/editor/editor_help.cpp
index 9b0c05d9105..8bba3493e5b 100644
--- a/editor/editor_help.cpp
+++ b/editor/editor_help.cpp
@@ -1456,10 +1456,31 @@ void EditorHelp::_update_doc() {
 			_push_normal_font();
 			class_desc->push_color(theme_cache.comment_color);
 
+			bool has_prev_text = false;
+
+			if (theme_item.is_deprecated) {
+				has_prev_text = true;
+				DEPRECATED_DOC_MSG(HANDLE_DOC(theme_item.deprecated_message), TTR("This theme property may be changed or removed in future versions."));
+			}
+
+			if (theme_item.is_experimental) {
+				if (has_prev_text) {
+					class_desc->add_newline();
+					class_desc->add_newline();
+				}
+				has_prev_text = true;
+				EXPERIMENTAL_DOC_MSG(HANDLE_DOC(theme_item.experimental_message), TTR("This theme property may be changed or removed in future versions."));
+			}
+
 			const String descr = HANDLE_DOC(theme_item.description);
 			if (!descr.is_empty()) {
+				if (has_prev_text) {
+					class_desc->add_newline();
+					class_desc->add_newline();
+				}
+				has_prev_text = true;
 				_add_text(descr);
-			} else {
+			} else if (!has_prev_text) {
 				class_desc->add_image(get_editor_theme_icon(SNAME("Error")));
 				class_desc->add_text(" ");
 				class_desc->push_color(theme_cache.comment_color);
@@ -2220,12 +2241,6 @@ void EditorHelp::_update_doc() {
 				}
 				has_prev_text = true;
 				_add_text(descr);
-				// Add copy note to built-in properties returning Packed*Array.
-				if (!cd.is_script_doc && packed_array_types.has(prop.type)) {
-					class_desc->add_newline();
-					class_desc->add_newline();
-					_add_text(vformat(TTR("[b]Note:[/b] The returned array is [i]copied[/i] and any changes to it will not update the original property value. See [%s] for more details."), prop.type));
-				}
 			} else if (!has_prev_text) {
 				class_desc->add_image(get_editor_theme_icon(SNAME("Error")));
 				class_desc->add_text(" ");
@@ -2238,6 +2253,13 @@ void EditorHelp::_update_doc() {
 				class_desc->pop(); // color
 			}
 
+			// Add copy note to built-in properties returning `Packed*Array`.
+			if (!cd.is_script_doc && packed_array_types.has(prop.type)) {
+				class_desc->add_newline();
+				class_desc->add_newline();
+				_add_text(vformat(TTR("[b]Note:[/b] The returned array is [i]copied[/i] and any changes to it will not update the original property value. See [%s] for more details."), prop.type));
+			}
+
 			class_desc->pop(); // color
 			_pop_normal_font();
 			class_desc->pop(); // indent
@@ -3380,6 +3402,20 @@ EditorHelpBit::HelpData EditorHelpBit::_get_theme_item_help_data(const StringNam
 		for (const DocData::ThemeItemDoc &theme_item : E->value.theme_properties) {
 			HelpData current;
 			current.description = HANDLE_DOC(theme_item.description);
+			if (theme_item.is_deprecated) {
+				if (theme_item.deprecated_message.is_empty()) {
+					current.deprecated_message = TTR("This theme property may be changed or removed in future versions.");
+				} else {
+					current.deprecated_message = HANDLE_DOC(theme_item.deprecated_message);
+				}
+			}
+			if (theme_item.is_experimental) {
+				if (theme_item.experimental_message.is_empty()) {
+					current.experimental_message = TTR("This theme property may be changed or removed in future versions.");
+				} else {
+					current.experimental_message = HANDLE_DOC(theme_item.experimental_message);
+				}
+			}
 
 			if (theme_item.name == p_theme_item_name) {
 				result = current;
diff --git a/editor/editor_help_search.cpp b/editor/editor_help_search.cpp
index eb97337b379..987c7f9c31d 100644
--- a/editor/editor_help_search.cpp
+++ b/editor/editor_help_search.cpp
@@ -1248,7 +1248,7 @@ TreeItem *EditorHelpSearch::Runner::_create_property_item(TreeItem *p_parent, co
 TreeItem *EditorHelpSearch::Runner::_create_theme_property_item(TreeItem *p_parent, const DocData::ClassDoc *p_class_doc, const MemberMatch<DocData::ThemeItemDoc> &p_match) {
 	String tooltip = p_match.doc->type + " " + p_class_doc->name + "." + p_match.doc->name;
 	tooltip += _build_keywords_tooltip(p_match.doc->keywords);
-	return _create_member_item(p_parent, p_class_doc->name, SNAME("MemberTheme"), p_match.doc->name, p_match.doc->name, TTRC("Theme Property"), "theme_item", p_match.doc->keywords, tooltip, false, false, p_match.name ? String() : p_match.keyword);
+	return _create_member_item(p_parent, p_class_doc->name, SNAME("MemberTheme"), p_match.doc->name, p_match.doc->name, TTRC("Theme Property"), "theme_item", p_match.doc->keywords, tooltip, p_match.doc->is_deprecated, p_match.doc->is_experimental, p_match.name ? String() : p_match.keyword);
 }
 
 TreeItem *EditorHelpSearch::Runner::_create_member_item(TreeItem *p_parent, const String &p_class_name, const StringName &p_icon, const String &p_name, const String &p_text, const String &p_type, const String &p_metatype, const String &p_tooltip, const String &p_keywords, bool p_is_deprecated, bool p_is_experimental, const String &p_matching_keyword) {