junrao commented on code in PR #15673:
URL: https://github.com/apache/kafka/pull/15673#discussion_r1637247133
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server-common/src/main/java/org/apache/kafka/server/common/MetadataVersion.java:
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@@ -228,7 +231,7 @@ public enum MetadataVersion {
* <strong>Think carefully before you update this value. ONCE A METADATA
VERSION IS PRODUCTION,
* IT CANNOT BE CHANGED.</strong>
*/
- public static final MetadataVersion LATEST_PRODUCTION = IBP_3_7_IV4;
+ public static final MetadataVersion LATEST_PRODUCTION = IBP_3_8_IV1;
Review Comment:
ELR was originally associated with IBP_3_7_IV3. When it's moved IBP_3_8_IV0,
we left IBP_3_7_IV3 unused since IBP_3_7_IV4 has already been implemented. We
didn't reuse IBP_3_7_IV3. Here, there is no 3.8 IV after IBP_3_8_IV0. So, we
could reuse IBP_3_8_IV0 for ListOffset. However, it seems that a simpler and
more consistent policy is to never reuse an IV?
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