diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/TestBackwardsCompatibility.java b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/TestBackwardsCompatibility.java
index 2deced798c4..4ad380139a7 100644
--- a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/TestBackwardsCompatibility.java
+++ b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/TestBackwardsCompatibility.java
@@ -365,7 +365,9 @@ public class TestBackwardsCompatibility extends LuceneTestCase {
     "8.7.0-cfs",
     "8.7.0-nocfs",
     "8.8.0-cfs",
-    "8.8.0-nocfs"
+    "8.8.0-nocfs",
+    "8.8.1-cfs",
+    "8.8.1-nocfs"
   };
 
   public static String[] getOldNames() {
@@ -389,7 +391,8 @@ public class TestBackwardsCompatibility extends LuceneTestCase {
     "sorted.8.6.2",
     "sorted.8.6.3",
     "sorted.8.7.0",
-    "sorted.8.8.0"
+    "sorted.8.8.0",
+    "sorted.8.8.1"
   };
 
   public static String[] getOldSortedNames() {
diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/index.8.8.1-cfs.zip b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/index.8.8.1-cfs.zip
new file mode 100644
index 00000000000..0e2aaf2923b
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diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/index.8.8.1-nocfs.zip b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/index.8.8.1-nocfs.zip
new file mode 100644
index 00000000000..c3fa86bbd8a
Binary files /dev/null and b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/index.8.8.1-nocfs.zip differ
diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/sorted.8.8.1.zip b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/sorted.8.8.1.zip
new file mode 100644
index 00000000000..4d889a6dd83
Binary files /dev/null and b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/sorted.8.8.1.zip differ