vpapavas commented on a change in pull request #11513:
URL: https://github.com/apache/kafka/pull/11513#discussion_r755097382



##########
File path: 
streams/src/main/java/org/apache/kafka/streams/processor/internals/ProcessorContextImpl.java
##########
@@ -110,17 +120,26 @@ public RecordCollector recordCollector() {
     public void logChange(final String storeName,
                           final Bytes key,
                           final byte[] value,
-                          final long timestamp) {
+                          final long timestamp,
+                          final Optional<Position> position) {
         throwUnsupportedOperationExceptionIfStandby("logChange");
 
         final TopicPartition changelogPartition = 
stateManager().registeredChangelogPartitionFor(storeName);
 
-        // Sending null headers to changelog topics (KIP-244)
+        final Headers headers = new RecordHeaders();
+        if (!consistencyEnabled) {

Review comment:
       From now on, the records written to the changelog will always have 
headers. In the default case, it will just be the version of the records. 




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