diff --git a/core/renderers/common/block_rendering.js b/core/renderers/common/block_rendering.js
index c98a31c76..44ffaaace 100644
--- a/core/renderers/common/block_rendering.js
+++ b/core/renderers/common/block_rendering.js
@@ -56,11 +56,13 @@ const {Types} = goog.require('Blockly.blockRendering.Types');
  * @return {boolean} Whether the debugger is turned on.
  * @alias Blockly.blockRendering.isDebuggerEnabled
  * @package
+ * @deprecated
  */
 const isDebuggerEnabled = function() {
   deprecation.warn(
       'Blockly.blockRendering.isDebuggerEnabled()', 'September 2021',
-      'September 2022', 'Blockly.blockRendering.debug.isDebuggerEnabled()');
+      'September 2022',
+      'the debug renderer in @blockly/dev-tools (See https://www.npmjs.com/package/@blockly/dev-tools.)');
   return debug.isDebuggerEnabled();
 };
 exports.isDebuggerEnabled = isDebuggerEnabled;
@@ -91,11 +93,13 @@ exports.unregister = unregister;
  * Turn on the blocks debugger.
  * @package
  * @alias Blockly.blockRendering.startDebugger
+ * @deprecated
  */
 const startDebugger = function() {
   deprecation.warn(
       'Blockly.blockRendering.startDebugger()', 'September 2021',
-      'September 2022', 'Blockly.blockRendering.debug.startDebugger()');
+      'September 2022',
+      'the debug renderer in @blockly/dev-tools (See https://www.npmjs.com/package/@blockly/dev-tools.)');
   debug.startDebugger();
 };
 exports.startDebugger = startDebugger;
@@ -104,11 +108,13 @@ exports.startDebugger = startDebugger;
  * Turn off the blocks debugger.
  * @package
  * @alias Blockly.blockRendering.stopDebugger
+ * @deprecated
  */
 const stopDebugger = function() {
   deprecation.warn(
       'Blockly.blockRendering.stopDebugger()', 'September 2021',
-      'September 2022', 'Blockly.blockRendering.debug.stopDebugger()');
+      'September 2022',
+      'the debug renderer in @blockly/dev-tools (See https://www.npmjs.com/package/@blockly/dev-tools.)');
   debug.stopDebugger();
 };
 exports.stopDebugger = stopDebugger;
diff --git a/core/renderers/common/debug.js b/core/renderers/common/debug.js
index e8b2d9aea..d62c27063 100644
--- a/core/renderers/common/debug.js
+++ b/core/renderers/common/debug.js
@@ -15,6 +15,8 @@
  */
 goog.module('Blockly.blockRendering.debug');
 
+const deprecation = goog.require('Blockly.utils.deprecation');
+
 
 /**
  * Whether or not the debugger is turned on.
@@ -28,6 +30,11 @@ let useDebugger = false;
  * @package
  */
 const isDebuggerEnabled = function() {
+  deprecation.warn(
+      'Blockly.blockRendering.debug.isDebuggerEnabled()', 'February 2022',
+      'September 2022',
+      'the debug renderer in @blockly/dev-tools (See https://www.npmjs.com/package/@blockly/dev-tools.)');
+
   return useDebugger;
 };
 exports.isDebuggerEnabled = isDebuggerEnabled;
@@ -38,6 +45,10 @@ exports.isDebuggerEnabled = isDebuggerEnabled;
  * @alias Blockly.blockRendering.debug.startDebugger
  */
 const startDebugger = function() {
+  deprecation.warn(
+      'Blockly.blockRendering.debug.startDebugger()', 'February 2022',
+      'September 2022',
+      'the debug renderer in @blockly/dev-tools (See https://www.npmjs.com/package/@blockly/dev-tools.)');
   useDebugger = true;
 };
 exports.startDebugger = startDebugger;
@@ -48,6 +59,10 @@ exports.startDebugger = startDebugger;
  * @alias Blockly.blockRendering.debug.stopDebugger
  */
 const stopDebugger = function() {
+  deprecation.warn(
+      'Blockly.blockRendering.debug.stopDebugger()', 'February 2022',
+      'September 2022',
+      'the debug renderer in @blockly/dev-tools (See https://www.npmjs.com/package/@blockly/dev-tools.)');
   useDebugger = false;
 };
 exports.stopDebugger = stopDebugger;