diff --git a/java/format/README.md b/java/format/README.md
index 623b30d..48412d1 100644
--- a/java/format/README.md
+++ b/java/format/README.md
@@ -18,6 +18,7 @@ rm -rf java/format/src
 # regenerate from the .fbs files
 flatc --java -o java/format/src/main/java format/*.fbs
 # generate license headers
+cd java
 mvn compile
 ```
 
@@ -26,4 +27,4 @@ mvn compile
 ```bash
 cd $BARRAGE_HOME
 find java/format/src -type f | while read file; do git add $file; done
-```
\ No newline at end of file
+```
diff --git a/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageMessageType.java b/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageMessageType.java
index 3f3756a..1339b70 100644
--- a/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageMessageType.java
+++ b/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageMessageType.java
@@ -25,6 +25,11 @@ private BarrageMessageType() { }
   public static final byte None = 0;
   /**
    * enum values 1 - 3 are reserved for future use
+   */
+  public static final byte UNUSED_1 = 1;
+  public static final byte UNUSED_2 = 2;
+  public static final byte UNUSED_3 = 3;
+  /**
    * for subscription parsing/management (aka DoPut, DoExchange)
    */
   public static final byte BarrageSerializationOptions = 4;
@@ -33,7 +38,7 @@ private BarrageMessageType() { }
   public static final byte BarrageSnapshotRequest = 7;
   public static final byte BarragePublicationRequest = 8;
 
-  public static final String[] names = { "None", "", "", "", "BarrageSerializationOptions", "BarrageSubscriptionRequest", "BarrageUpdateMetadata", "BarrageSnapshotRequest", "BarragePublicationRequest", };
+  public static final String[] names = { "None", "UNUSED_1", "UNUSED_2", "UNUSED_3", "BarrageSerializationOptions", "BarrageSubscriptionRequest", "BarrageUpdateMetadata", "BarrageSnapshotRequest", "BarragePublicationRequest", };
 
   public static String name(int e) { return names[e]; }
 }
diff --git a/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageSnapshotOptions.java b/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageSnapshotOptions.java
index 604cf29..4ad28ef 100644
--- a/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageSnapshotOptions.java
+++ b/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageSnapshotOptions.java
@@ -58,18 +58,21 @@ public final class BarrageSnapshotOptions extends Table {
    */
   public int maxMessageSize() { int o = __offset(10); return o != 0 ? bb.getInt(o + bb_pos) : 0; }
   /**
-   * If zero, list lengths will not be limited. If greater than zero, the server will limit the length of any encoded
-   * list / array to the first n elements, where n is the specified value. If the column value has length less than
-   * zero, the server will send the last n elements of the list / array. If the column value has length greater than
-   * the limit, the server will encode the list up to the limit and append an arbitrary value to indicate truncation.
+   * The maximum length of any list / array to encode.
+   * - If zero, list lengths will not be limited.
+   * - If non-zero, the server will limit the length of any encoded list / array to the absolute value of the returned length.
+   * - If less than zero, the server will encode elements from the end of the list / array, rather than from the beginning.
+   *
+   * Note: The server is unable to indicate when truncation occurs. To detect truncation request one more element than
+   * the maximum number you wish to display.
    */
-  public int previewListLengthLimit() { int o = __offset(12); return o != 0 ? bb.getInt(o + bb_pos) : 0; }
+  public long previewListLengthLimit() { int o = __offset(12); return o != 0 ? bb.getLong(o + bb_pos) : 0L; }
 
   public static int createBarrageSnapshotOptions(FlatBufferBuilder builder,
       boolean useDeephavenNulls,
       int batchSize,
       int maxMessageSize,
-      int previewListLengthLimit) {
+      long previewListLengthLimit) {
     builder.startTable(5);
     BarrageSnapshotOptions.addPreviewListLengthLimit(builder, previewListLengthLimit);
     BarrageSnapshotOptions.addMaxMessageSize(builder, maxMessageSize);
@@ -82,7 +85,7 @@ public static int createBarrageSnapshotOptions(FlatBufferBuilder builder,
   public static void addUseDeephavenNulls(FlatBufferBuilder builder, boolean useDeephavenNulls) { builder.addBoolean(1, useDeephavenNulls, false); }
   public static void addBatchSize(FlatBufferBuilder builder, int batchSize) { builder.addInt(2, batchSize, 0); }
   public static void addMaxMessageSize(FlatBufferBuilder builder, int maxMessageSize) { builder.addInt(3, maxMessageSize, 0); }
-  public static void addPreviewListLengthLimit(FlatBufferBuilder builder, int previewListLengthLimit) { builder.addInt(4, previewListLengthLimit, 0); }
+  public static void addPreviewListLengthLimit(FlatBufferBuilder builder, long previewListLengthLimit) { builder.addLong(4, previewListLengthLimit, 0L); }
   public static int endBarrageSnapshotOptions(FlatBufferBuilder builder) {
     int o = builder.endTable();
     return o;
diff --git a/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageSubscriptionOptions.java b/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageSubscriptionOptions.java
index ed762ae..d0c0581 100644
--- a/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageSubscriptionOptions.java
+++ b/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageSubscriptionOptions.java
@@ -72,12 +72,15 @@ public final class BarrageSubscriptionOptions extends Table {
    */
   public boolean columnsAsList() { int o = __offset(14); return o != 0 ? 0!=bb.get(o + bb_pos) : false; }
   /**
-   * If zero, list lengths will not be limited. If greater than zero, the server will limit the length of any encoded
-   * list / array to the first n elements, where n is the specified value. If the column value has length less than
-   * zero, the server will send the last n elements of the list / array. If the column value has length greater than
-   * the limit, the server will encode the list up to the limit and append an arbitrary value to indicate truncation.
+   * The maximum length of any list / array to encode.
+   * - If zero, list lengths will not be limited.
+   * - If non-zero, the server will limit the length of any encoded list / array to the absolute value of the returned length.
+   * - If less than zero, the server will encode elements from the end of the list / array, rather than from the beginning.
+   *
+   * Note: The server is unable to indicate when truncation occurs. To detect truncation request one more element than
+   * the maximum number you wish to display.
    */
-  public int previewListLengthLimit() { int o = __offset(16); return o != 0 ? bb.getInt(o + bb_pos) : 0; }
+  public long previewListLengthLimit() { int o = __offset(16); return o != 0 ? bb.getLong(o + bb_pos) : 0L; }
 
   public static int createBarrageSubscriptionOptions(FlatBufferBuilder builder,
       boolean useDeephavenNulls,
@@ -85,7 +88,7 @@ public static int createBarrageSubscriptionOptions(FlatBufferBuilder builder,
       int batchSize,
       int maxMessageSize,
       boolean columnsAsList,
-      int previewListLengthLimit) {
+      long previewListLengthLimit) {
     builder.startTable(7);
     BarrageSubscriptionOptions.addPreviewListLengthLimit(builder, previewListLengthLimit);
     BarrageSubscriptionOptions.addMaxMessageSize(builder, maxMessageSize);
@@ -102,7 +105,7 @@ public static int createBarrageSubscriptionOptions(FlatBufferBuilder builder,
   public static void addBatchSize(FlatBufferBuilder builder, int batchSize) { builder.addInt(3, batchSize, 0); }
   public static void addMaxMessageSize(FlatBufferBuilder builder, int maxMessageSize) { builder.addInt(4, maxMessageSize, 0); }
   public static void addColumnsAsList(FlatBufferBuilder builder, boolean columnsAsList) { builder.addBoolean(5, columnsAsList, false); }
-  public static void addPreviewListLengthLimit(FlatBufferBuilder builder, int previewListLengthLimit) { builder.addInt(6, previewListLengthLimit, 0); }
+  public static void addPreviewListLengthLimit(FlatBufferBuilder builder, long previewListLengthLimit) { builder.addLong(6, previewListLengthLimit, 0L); }
   public static int endBarrageSubscriptionOptions(FlatBufferBuilder builder) {
     int o = builder.endTable();
     return o;
diff --git a/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageUpdateMetadata.java b/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageUpdateMetadata.java
index 07bd0c1..c83f881 100644
--- a/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageUpdateMetadata.java
+++ b/java/format/src/main/java/io/deephaven/barrage/flatbuf/BarrageUpdateMetadata.java
@@ -125,6 +125,10 @@ public final class BarrageUpdateMetadata extends Table {
   public int modColumnNodesLength() { int o = __offset(24); return o != 0 ? __vector_len(o) : 0; }
   public io.deephaven.barrage.flatbuf.BarrageModColumnMetadata.Vector modColumnNodesVector() { return modColumnNodesVector(new io.deephaven.barrage.flatbuf.BarrageModColumnMetadata.Vector()); }
   public io.deephaven.barrage.flatbuf.BarrageModColumnMetadata.Vector modColumnNodesVector(io.deephaven.barrage.flatbuf.BarrageModColumnMetadata.Vector obj) { int o = __offset(24); return o != 0 ? obj.__assign(__vector(o), 4, bb) : null; }
+  /**
+   * The current size of the table.
+   */
+  public long tableSize() { int o = __offset(26); return o != 0 ? bb.getLong(o + bb_pos) : 0L; }
 
   public static int createBarrageUpdateMetadata(FlatBufferBuilder builder,
       long firstSeq,
@@ -137,8 +141,10 @@ public static int createBarrageUpdateMetadata(FlatBufferBuilder builder,
       int removedRowsOffset,
       int shiftDataOffset,
       int addedRowsIncludedOffset,
-      int modColumnNodesOffset) {
-    builder.startTable(11);
+      int modColumnNodesOffset,
+      long tableSize) {
+    builder.startTable(12);
+    BarrageUpdateMetadata.addTableSize(builder, tableSize);
     BarrageUpdateMetadata.addLastSeq(builder, lastSeq);
     BarrageUpdateMetadata.addFirstSeq(builder, firstSeq);
     BarrageUpdateMetadata.addModColumnNodes(builder, modColumnNodesOffset);
@@ -153,7 +159,7 @@ public static int createBarrageUpdateMetadata(FlatBufferBuilder builder,
     return BarrageUpdateMetadata.endBarrageUpdateMetadata(builder);
   }
 
-  public static void startBarrageUpdateMetadata(FlatBufferBuilder builder) { builder.startTable(11); }
+  public static void startBarrageUpdateMetadata(FlatBufferBuilder builder) { builder.startTable(12); }
   public static void addFirstSeq(FlatBufferBuilder builder, long firstSeq) { builder.addLong(0, firstSeq, 0L); }
   public static void addLastSeq(FlatBufferBuilder builder, long lastSeq) { builder.addLong(1, lastSeq, 0L); }
   public static void addIsSnapshot(FlatBufferBuilder builder, boolean isSnapshot) { builder.addBoolean(2, isSnapshot, false); }
@@ -185,6 +191,7 @@ public static int createBarrageUpdateMetadata(FlatBufferBuilder builder,
   public static void addModColumnNodes(FlatBufferBuilder builder, int modColumnNodesOffset) { builder.addOffset(10, modColumnNodesOffset, 0); }
   public static int createModColumnNodesVector(FlatBufferBuilder builder, int[] data) { builder.startVector(4, data.length, 4); for (int i = data.length - 1; i >= 0; i--) builder.addOffset(data[i]); return builder.endVector(); }
   public static void startModColumnNodesVector(FlatBufferBuilder builder, int numElems) { builder.startVector(4, numElems, 4); }
+  public static void addTableSize(FlatBufferBuilder builder, long tableSize) { builder.addLong(11, tableSize, 0L); }
   public static int endBarrageUpdateMetadata(FlatBufferBuilder builder) {
     int o = builder.endTable();
     return o;