diff --git a/backends-velox/src/main/scala/org/apache/gluten/backendsapi/velox/VeloxIteratorApi.scala b/backends-velox/src/main/scala/org/apache/gluten/backendsapi/velox/VeloxIteratorApi.scala
index 8a80023244..d8b23b358f 100644
--- a/backends-velox/src/main/scala/org/apache/gluten/backendsapi/velox/VeloxIteratorApi.scala
+++ b/backends-velox/src/main/scala/org/apache/gluten/backendsapi/velox/VeloxIteratorApi.scala
@@ -163,7 +163,7 @@ class VeloxIteratorApi extends IteratorApi with Logging {
               case _: DateType =>
                 dateFormatter.format(pv.asInstanceOf[Integer])
               case _: DecimalType =>
-                pv.asInstanceOf[Decimal].toJavaBigDecimal.unscaledValue().toString
+                pv.asInstanceOf[Decimal].toJavaBigDecimal.toPlainString
               case _: TimestampType =>
                 timestampFormatter.format(pv.asInstanceOf[java.lang.Long])
               case _ => pv.toString
diff --git a/cpp/CMake/FindRoaring.cmake b/cpp/CMake/FindRoaring.cmake
index 0d36108373..bfb7e9fb22 100644
--- a/cpp/CMake/FindRoaring.cmake
+++ b/cpp/CMake/FindRoaring.cmake
@@ -150,12 +150,10 @@ if(Roaring_INCLUDE_DIR
 endif()
 
 if(_roaring_found_via_pkgconfig)
-  add_library(roaring INTERFACE)
-  target_link_libraries(roaring INTERFACE PkgConfig::Roaring)
-  _gluten_roaring_add_headers(roaring)
-  set(Roaring_FOUND TRUE)
-  message(STATUS "Found roaring via pkg-config imported target fallback.")
-  return()
+  message(
+    STATUS
+      "Found roaring via pkg-config without direct library; using FetchContent."
+  )
 endif()
 
 include(BuildRoaring)
diff --git a/cpp/velox/CMakeLists.txt b/cpp/velox/CMakeLists.txt
index 5034c1601a..532dd6e6a7 100644
--- a/cpp/velox/CMakeLists.txt
+++ b/cpp/velox/CMakeLists.txt
@@ -76,6 +76,7 @@ if(NOT DEFINED VELOX_BUILD_PATH)
 endif()
 
 find_package(Roaring REQUIRED)
+set(GLUTEN_ROARING_LINK_LIBRARY roaring)
 
 set(VELOX_PROTO_SRC_DIR
     ${GLUTEN_HOME}/backends-velox/src/main/resources/org/apache/gluten/proto)
@@ -326,7 +327,7 @@ endif()
 target_link_libraries(velox PUBLIC facebook::velox)
 
 target_link_libraries(velox PUBLIC Folly::folly)
-target_link_libraries(velox PUBLIC roaring)
+target_link_libraries(velox PUBLIC ${GLUTEN_ROARING_LINK_LIBRARY})
 
 find_re2()
 target_link_libraries(velox PUBLIC ${RE2_LIBRARY})
diff --git a/cpp/velox/compute/delta/tests/CMakeLists.txt b/cpp/velox/compute/delta/tests/CMakeLists.txt
index ec86cab0d7..9641cc341c 100644
--- a/cpp/velox/compute/delta/tests/CMakeLists.txt
+++ b/cpp/velox/compute/delta/tests/CMakeLists.txt
@@ -15,8 +15,9 @@
 
 add_executable(velox_roaring_bitmap_array_test RoaringBitmapArrayTest.cpp)
 
-target_link_libraries(velox_roaring_bitmap_array_test velox roaring
-                      GTest::gtest GTest::gtest_main)
+target_link_libraries(
+  velox_roaring_bitmap_array_test velox ${GLUTEN_ROARING_LINK_LIBRARY}
+  GTest::gtest GTest::gtest_main)
 
 add_test(
   NAME velox_roaring_bitmap_array_test
diff --git a/cpp/velox/tests/CMakeLists.txt b/cpp/velox/tests/CMakeLists.txt
index 0c61850e12..37d9cfb238 100644
--- a/cpp/velox/tests/CMakeLists.txt
+++ b/cpp/velox/tests/CMakeLists.txt
@@ -28,7 +28,8 @@ function(add_velox_test TEST_EXEC)
   add_executable(${TEST_EXEC} ${SOURCES} ${VELOX_TEST_COMMON_SRCS})
   target_include_directories(${TEST_EXEC} PRIVATE ${CMAKE_SOURCE_DIR}/velox
                                                   ${CMAKE_SOURCE_DIR}/src)
-  target_link_libraries(${TEST_EXEC} velox GTest::gtest GTest::gtest_main)
+  target_link_libraries(${TEST_EXEC} velox ${GLUTEN_ROARING_LINK_LIBRARY}
+                        GTest::gtest GTest::gtest_main)
   if(ENABLE_GPU)
     target_link_libraries(${TEST_EXEC} velox_curl)
   endif()
@@ -82,8 +83,9 @@ if(ENABLE_GPU)
              facebook::velox::velox_cudf_exec
              facebook::velox::velox_cudf_vector
              facebook::velox::velox_cudf_hive_connector)
-    target_link_libraries(${TEST_EXEC} PRIVATE velox cudf::cudf velox_curl
-                                               GTest::gtest GTest::gtest_main)
+    target_link_libraries(
+      ${TEST_EXEC} PRIVATE velox ${GLUTEN_ROARING_LINK_LIBRARY} cudf::cudf
+                           velox_curl GTest::gtest GTest::gtest_main)
     gtest_discover_tests(
       ${TEST_EXEC} DISCOVERY_MODE PRE_TEST
       PROPERTIES LABELS "cuda_driver"
diff --git a/ep/build-velox/src/get-velox.sh b/ep/build-velox/src/get-velox.sh
index 4d6eccdb34..042a9bc43e 100755
--- a/ep/build-velox/src/get-velox.sh
+++ b/ep/build-velox/src/get-velox.sh
@@ -18,8 +18,8 @@ set -exu
 
 CURRENT_DIR=$(cd "$(dirname "$BASH_SOURCE")"; pwd)
 VELOX_REPO=https://github.com/IBM/velox.git
-VELOX_BRANCH=dft-2026_05_06
-VELOX_ENHANCED_BRANCH=ibm-2026_05_06
+VELOX_BRANCH=dft-2026_05_11
+VELOX_ENHANCED_BRANCH=ibm-2026_05_11
 VELOX_HOME=""
 RUN_SETUP_SCRIPT=ON
 ENABLE_ENHANCED_FEATURES=OFF