diff --git a/connector/connect/client/jvm/src/main/scala/org/apache/spark/sql/streaming/progress.scala b/connector/connect/client/jvm/src/main/scala/org/apache/spark/sql/streaming/progress.scala
index ebd13bc248f9..82a7db32543a 100644
--- a/connector/connect/client/jvm/src/main/scala/org/apache/spark/sql/streaming/progress.scala
+++ b/connector/connect/client/jvm/src/main/scala/org/apache/spark/sql/streaming/progress.scala
@@ -203,7 +203,7 @@ private[spark] object StreamingQueryProgress {
   }
 
   private[spark] def jsonString(progress: StreamingQueryProgress): String =
-    mapper.writeValueAsString(progress)
+    progress.json
 
   private[spark] def fromJson(json: String): StreamingQueryProgress =
     mapper.readValue[StreamingQueryProgress](json)
diff --git a/python/pyspark/sql/streaming/listener.py b/python/pyspark/sql/streaming/listener.py
index c1c9dce04731..e168f017aca9 100644
--- a/python/pyspark/sql/streaming/listener.py
+++ b/python/pyspark/sql/streaming/listener.py
@@ -394,9 +394,11 @@ def errorClassOnException(self) -> Optional[str]:
         return self._errorClassOnException
 
 
-class StreamingQueryProgress:
+class StreamingQueryProgress(dict):
     """
     .. versionadded:: 3.4.0
+    .. versionchanged:: 4.0.0
+        Becomes a subclass of dict
 
     Notes
     -----
@@ -473,6 +475,10 @@ def fromJObject(cls, jprogress: "JavaObject") -> "StreamingQueryProgress":
 
     @classmethod
     def fromJson(cls, j: Dict[str, Any]) -> "StreamingQueryProgress":
+        num_input_rows = j.get("numInputRows", None)
+        input_rows_per_sec = j.get("inputRowsPerSecond", None)
+        processed_rows_per_sec = j.get("processedRowsPerSecond", None)
+
         return cls(
             jdict=j,
             id=uuid.UUID(j["id"]),
@@ -486,9 +492,9 @@ def fromJson(cls, j: Dict[str, Any]) -> "StreamingQueryProgress":
             stateOperators=[StateOperatorProgress.fromJson(s) for s in j["stateOperators"]],
             sources=[SourceProgress.fromJson(s) for s in j["sources"]],
             sink=SinkProgress.fromJson(j["sink"]),
-            numInputRows=j["numInputRows"],
-            inputRowsPerSecond=j["inputRowsPerSecond"],
-            processedRowsPerSecond=j["processedRowsPerSecond"],
+            numInputRows=j["numInputRows"] if "numInputRows" in j else None,
+            inputRowsPerSecond=j["inputRowsPerSecond"] if "inputRowsPerSecond" in j else None,
+            processedRowsPerSecond=j["processedRowsPerSecond"] if "processedRowsPerSecond" in j else None,
             observedMetrics={
                 k: Row(*row_dict.keys())(*row_dict.values())  # Assume no nested rows
                 for k, row_dict in j["observedMetrics"].items()
@@ -600,21 +606,30 @@ def numInputRows(self) -> int:
         """
         The aggregate (across all sources) number of records processed in a trigger.
         """
-        return self._numInputRows
+        if self._numInputRows is not None:
+            return self._numInputRows
+        else:
+            return sum(s.numInputRows for s in self.sources)
 
     @property
     def inputRowsPerSecond(self) -> float:
         """
         The aggregate (across all sources) rate of data arriving.
         """
-        return self._inputRowsPerSecond
+        if self._inputRowsPerSecond is not None:
+            return self._inputRowsPerSecond
+        else:
+            return sum(s.inputRowsPerSecond for s in self.sources)
 
     @property
     def processedRowsPerSecond(self) -> float:
         """
         The aggregate (across all sources) rate at which Spark is processing data.
         """
-        return self._processedRowsPerSecond
+        if self._processedRowsPerSecond is not None:
+            return self._processedRowsPerSecond
+        else:
+            return sum(s.processedRowsPerSecond for s in self.sources)
 
     @property
     def json(self) -> str:
diff --git a/python/pyspark/sql/tests/streaming/test_streaming.py b/python/pyspark/sql/tests/streaming/test_streaming.py
index 1799f0d1336e..b614d0670262 100644
--- a/python/pyspark/sql/tests/streaming/test_streaming.py
+++ b/python/pyspark/sql/tests/streaming/test_streaming.py
@@ -28,7 +28,7 @@
 
 class StreamingTestsMixin:
     def test_streaming_query_functions_basic(self):
-        df = self.spark.readStream.format("rate").option("rowsPerSecond", 10).load()
+        df = self.spark.readStream.format("text").load("python/test_support/sql/streaming")
         query = (
             df.writeStream.format("memory")
             .queryName("test_streaming_query_functions_basic")
diff --git a/python/pyspark/sql/tests/streaming/test_streaming_listener.py b/python/pyspark/sql/tests/streaming/test_streaming_listener.py
index 15f5575d3647..7d3d2c6f893f 100644
--- a/python/pyspark/sql/tests/streaming/test_streaming_listener.py
+++ b/python/pyspark/sql/tests/streaming/test_streaming_listener.py
@@ -194,6 +194,17 @@ def check_sink_progress(self, progress):
         self.assertTrue(isinstance(progress.numOutputRows, int))
         self.assertTrue(isinstance(progress.metrics, dict))
 
+    def test_streaming_last_progress(self):
+        try:
+            df = self.spark.readStream.format("text").load("python/test_support/sql/streaming")
+            query = df.writeStream.format("noop").queryName("test_streaming_progress").start()
+            query.processAllAvailable()
+
+            progress = StreamingQueryProgress.fromJson(query.lastProgress)
+            self.check_streaming_query_progress(progress, False)
+        finally:
+            query.stop()
+
     # This is a generic test work for both classic Spark and Spark Connect
     def test_listener_observed_metrics(self):
         class MyErrorListener(StreamingQueryListener):
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/streaming/progress.scala b/sql/core/src/main/scala/org/apache/spark/sql/streaming/progress.scala
index 05323d9d0381..c81412b30102 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/streaming/progress.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/streaming/progress.scala
@@ -187,7 +187,7 @@ private[spark] object StreamingQueryProgress {
   }
 
   private[spark] def jsonString(progress: StreamingQueryProgress): String =
-    mapper.writeValueAsString(progress)
+    progress.json
 
   private[spark] def fromJson(json: String): StreamingQueryProgress =
     mapper.readValue[StreamingQueryProgress](json)