beliefer commented on a change in pull request #27898: 
[SPARK-31141][DSTREAMS][DOC] Add version information to the configuration of 
Dstreams
URL: https://github.com/apache/spark/pull/27898#discussion_r392020223
 
 

 ##########
 File path: 
streaming/src/main/scala/org/apache/spark/streaming/StreamingConf.scala
 ##########
 @@ -26,135 +26,162 @@ object StreamingConf {
 
   private[streaming] val BACKPRESSURE_ENABLED =
     ConfigBuilder("spark.streaming.backpressure.enabled")
+      .version("1.5.0")
       .booleanConf
       .createWithDefault(false)
 
   private[streaming] val RECEIVER_MAX_RATE =
     ConfigBuilder("spark.streaming.receiver.maxRate")
+      .version("1.0.2")
       .longConf
       .createWithDefault(Long.MaxValue)
 
   private[streaming] val BACKPRESSURE_INITIAL_RATE =
     ConfigBuilder("spark.streaming.backpressure.initialRate")
+      .version("2.0.0")
       .fallbackConf(RECEIVER_MAX_RATE)
 
   private[streaming] val BLOCK_INTERVAL =
     ConfigBuilder("spark.streaming.blockInterval")
+      .version("0.8.0")
       .timeConf(TimeUnit.MILLISECONDS)
       .createWithDefaultString("200ms")
 
   private[streaming] val RECEIVER_WAL_ENABLE_CONF_KEY =
     ConfigBuilder("spark.streaming.receiver.writeAheadLog.enable")
+      .version("1.2.1")
       .booleanConf
       .createWithDefault(false)
 
   private[streaming] val RECEIVER_WAL_CLASS_CONF_KEY =
     ConfigBuilder("spark.streaming.receiver.writeAheadLog.class")
+      .version("1.4.0")
       .stringConf
       .createOptional
 
   private[streaming] val RECEIVER_WAL_ROLLING_INTERVAL_CONF_KEY =
     ConfigBuilder("spark.streaming.receiver.writeAheadLog.rollingIntervalSecs")
+      .version("1.4.0")
       .intConf
       .createWithDefault(60)
 
   private[streaming] val RECEIVER_WAL_MAX_FAILURES_CONF_KEY =
     ConfigBuilder("spark.streaming.receiver.writeAheadLog.maxFailures")
+      .version("1.2.0")
 
 Review comment:
   SPARK-4028, commit ID: 
234de9232bcfa212317a8073c4a82c3863b36b14#diff-8cec1a581eebcad673dc8930b1a2801c

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