diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/index.9.11.1-cfs.zip b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/index.9.11.1-cfs.zip
new file mode 100644
index 000000000000..51ad7e7997c3
Binary files /dev/null and b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/index.9.11.1-cfs.zip differ
diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/index.9.11.1-nocfs.zip b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/index.9.11.1-nocfs.zip
new file mode 100644
index 000000000000..f14d925827ba
Binary files /dev/null and b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/index.9.11.1-nocfs.zip differ
diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/int8_hnsw.9.11.1.zip b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/int8_hnsw.9.11.1.zip
new file mode 100644
index 000000000000..c4bb86b5f1b6
Binary files /dev/null and b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/int8_hnsw.9.11.1.zip differ
diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/sorted.9.11.1.zip b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/sorted.9.11.1.zip
new file mode 100644
index 000000000000..4ccd9a76b000
Binary files /dev/null and b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/sorted.9.11.1.zip differ
diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/versions.txt b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/versions.txt
index 3b820b6fc0f8..4572b6fadfe4 100644
--- a/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/versions.txt
+++ b/lucene/backward-codecs/src/test/org/apache/lucene/backward_index/versions.txt
@@ -40,3 +40,4 @@
 9.9.2
 9.10.0
 9.11.0
+9.11.1