pprovenzano commented on code in PR #14984:
URL: https://github.com/apache/kafka/pull/14984#discussion_r1426109379


##########
server-common/src/main/java/org/apache/kafka/server/common/MetadataVersion.java:
##########
@@ -194,8 +194,14 @@ public enum MetadataVersion {
     // Add JBOD support for KRaft.
     IBP_3_7_IV2(17, "3.7", "IV2", true),
 
+    // IBP_3_7_IV3 was ELR related supports (KIP-966) and has been moved 
forward
+    IBP_3_7_IV3(18, "3.7", "IV3", false),
+
+    // Add new fetch request version for KIP-951
+    IBP_3_7_IV4(19, "3.7", "IV4", false),
+
     // Add ELR related supports (KIP-966).
-    IBP_3_7_IV3(18, "3.7", "IV3", true);
+    IBP_3_8_IV0(20, "3.8", "IV0", true);

Review Comment:
   If we remove the tag from here should we also remove all the other code 
associated with ELR from the 3.7 branch? 
   I don't think removing it from the 3.7 branch really buys us much of 
anything except more code churn.



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