diff --git a/src/scheduler/AsyncTask.php b/src/scheduler/AsyncTask.php
index c70848b16..eb75130b6 100644
--- a/src/scheduler/AsyncTask.php
+++ b/src/scheduler/AsyncTask.php
@@ -68,7 +68,10 @@ abstract class AsyncTask extends Runnable{
 	 */
 	private static array $threadLocalStorage = [];
 
-	/** @phpstan-var ThreadSafeArray<int, string>|null */
+	/**
+	 * @phpstan-var ThreadSafeArray<int, string>|null
+	 * @deprecated
+	 */
 	private ?ThreadSafeArray $progressUpdates = null;
 
 	private ThreadSafe|string|int|bool|null|float $result = null;
@@ -140,6 +143,8 @@ abstract class AsyncTask extends Runnable{
 	}
 
 	/**
+	 * @deprecated
+	 *
 	 * Call this method from {@link AsyncTask::onRun} (AsyncTask execution thread) to schedule a call to
 	 * {@link AsyncTask::onProgressUpdate} from the main thread with the given progress parameter.
 	 *
@@ -154,6 +159,7 @@ abstract class AsyncTask extends Runnable{
 	}
 
 	/**
+	 * @deprecated
 	 * @internal Only call from AsyncPool.php on the main thread
 	 */
 	public function checkProgressUpdates() : void{
@@ -166,6 +172,8 @@ abstract class AsyncTask extends Runnable{
 	}
 
 	/**
+	 * @deprecated
+	 *
 	 * Called from the main thread after {@link AsyncTask::publishProgress} is called.
 	 * All {@link AsyncTask::publishProgress} calls should result in {@link AsyncTask::onProgressUpdate} calls before
 	 * {@link AsyncTask::onCompletion} is called.