diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index fb6bf16644..23e8369250 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -960,7 +960,11 @@ if (WIN32)
         # issued by thrust nonstandard extension used: nameless struct/union
         list(APPEND ORT_WARNING_FLAGS "/wd4201")
         # warning C4800: Implicit conversion from 'X' to bool. Possible information loss
-        list(APPEND ORT_WARNING_FLAGS "/w34800")
+        if (onnxruntime_USE_OPENVINO)
+           list(APPEND ORT_WARNING_FLAGS "/wd4800")
+        else()
+           list(APPEND ORT_WARNING_FLAGS "/w34800")
+        endif()
         if (onnxruntime_USE_OPENMP)
             list(APPEND ORT_WARNING_FLAGS "/wd6993") # Code analysis ignores OpenMP constructs
         endif()
diff --git a/dockerfiles/Dockerfile.openvino b/dockerfiles/Dockerfile.openvino
index b449ea1194..18d40bd78e 100644
--- a/dockerfiles/Dockerfile.openvino
+++ b/dockerfiles/Dockerfile.openvino
@@ -3,7 +3,7 @@
 # SPDX-License-Identifier: MIT
 #--------------------------------------------------------------------------
 
-ARG OPENVINO_VERSION=2021.4.1
+ARG OPENVINO_VERSION=2021.4.2
 
 
 # Build stage
diff --git a/dockerfiles/Dockerfile.openvino-centos7 b/dockerfiles/Dockerfile.openvino-centos7
index af14da9e64..e500f3ce5a 100755
--- a/dockerfiles/Dockerfile.openvino-centos7
+++ b/dockerfiles/Dockerfile.openvino-centos7
@@ -8,12 +8,12 @@ FROM centos:7.8.2003
 WORKDIR /code
 
 ARG MY_ROOT=/code
-ARG YUM_OV_PACKAGE=intel-openvino-runtime-centos7-2021.4.689.x86_64
+ARG YUM_OV_PACKAGE=intel-openvino-runtime-centos7-2021.4.752.x86_64
 ARG DEVICE=CPU_FP32
 ARG ONNXRUNTIME_REPO=https://github.com/microsoft/onnxruntime
 ARG ONNXRUNTIME_BRANCH=master
 
-ENV INTEL_OPENVINO_DIR=/opt/intel/openvino_2021.4.689
+ENV INTEL_OPENVINO_DIR=/opt/intel/openvino_2021.4.752
 ENV InferenceEngine_DIR=${INTEL_OPENVINO_DIR}/deployment_tools/inference_engine/share
 ENV IE_PLUGINS_PATH=${INTEL_OPENVINO_DIR}/deployment_tools/inference_engine/lib/intel64
 ENV ngraph_DIR=${INTEL_OPENVINO_DIR}/deployment_tools/ngraph/cmake
@@ -58,7 +58,7 @@ RUN yum update -y && \
     yum update -y && yum list intel-openvino* && \
     yum install -y $YUM_OV_PACKAGE && \
     cd ${INTEL_OPENVINO_DIR}/install_dependencies/ && ./install_openvino_dependencies.sh -y && \
-    printf "\nexport LD_LIBRARY_PATH=\${LD_LIBRARY_PATH}:/usr/local/lib\n" >> /opt/intel/openvino_2021.4.689/bin/setupvars.sh && \
+    printf "\nexport LD_LIBRARY_PATH=\${LD_LIBRARY_PATH}:/usr/local/lib\n" >> /opt/intel/openvino_2021.4.752/bin/setupvars.sh && \
     cd /opt/libusb-1.0.22 && \
     /usr/bin/install -c -m 644 libusb-1.0.pc '/usr/local/lib/pkgconfig' && \
     cp /opt/intel/openvino_2021/deployment_tools/inference_engine/external/97-myriad-usbboot.rules /etc/udev/rules.d/ && \
diff --git a/dockerfiles/Dockerfile.openvino-csharp b/dockerfiles/Dockerfile.openvino-csharp
index eec0d0934c..961e3b30f6 100644
--- a/dockerfiles/Dockerfile.openvino-csharp
+++ b/dockerfiles/Dockerfile.openvino-csharp
@@ -15,7 +15,7 @@ ARG MY_ROOT=/code
 ENV PATH /opt/miniconda/bin:/code/cmake-3.21.0-linux-x86_64/bin:$PATH
 ENV LD_LIBRARY_PATH=/opt/miniconda/lib:/usr/lib:/usr/lib/x86_64-linux-gnu:$LD_LIBRARY_PATH
 
-ENV INTEL_OPENVINO_DIR=/opt/intel/openvino_2021.4.689
+ENV INTEL_OPENVINO_DIR=/opt/intel/openvino_2021.4.752
 ENV InferenceEngine_DIR=${INTEL_OPENVINO_DIR}/deployment_tools/inference_engine/share
 ENV IE_PLUGINS_PATH=${INTEL_OPENVINO_DIR}/deployment_tools/inference_engine/lib/intel64
 ENV LD_LIBRARY_PATH=/opt/intel/opencl:${INTEL_OPENVINO_DIR}/inference_engine/external/gna/lib:${INTEL_OPENVINO_DIR}/deployment_tools/inference_engine/external/mkltiny_lnx/lib:$INTEL_OPENVINO_DIR/deployment_tools/ngraph/lib:${INTEL_OPENVINO_DIR}/deployment_tools/inference_engine/external/omp/lib:${INTEL_OPENVINO_DIR}/deployment_tools/inference_engine/external/tbb/lib:${IE_PLUGINS_PATH}:${LD_LIBRARY_PATH}
@@ -54,7 +54,7 @@ RUN apt update -y && \
     cd /etc/apt/sources.list.d && \
     echo "deb https://apt.repos.intel.com/openvino/2021 all main">intel-openvino-2021.list && \ 
     apt update -y && \
-    apt -y install intel-openvino-dev-ubuntu18-2021.4.689 && \
+    apt -y install intel-openvino-dev-ubuntu18-2021.4.752 && \
     cd ${INTEL_OPENVINO_DIR}/install_dependencies && ./install_openvino_dependencies.sh -y && \
     cd ${INTEL_OPENVINO_DIR} && rm -rf documentation data_processing && \
     cd deployment_tools/ && rm -rf model_optimizer open_model_zoo demo tools && \
@@ -82,7 +82,7 @@ RUN apt update -y && \
     cd ${MY_ROOT} && \
     apt install -y gnupg ca-certificates && \
     #apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF && \
-    curl http://download.mono-project.com/repo/xamarin.gpg | apt-key add - && \
+    curl https://download.mono-project.com/repo/xamarin.gpg | apt-key add - && \
     echo "deb https://download.mono-project.com/repo/ubuntu stable-bionic main" | sudo tee /etc/apt/sources.list.d/mono-official-stable.list && \
     apt update -y && \
     apt install -y mono-devel && \
@@ -97,13 +97,14 @@ RUN apt update -y && \
     apt-get update -y &&\
     apt-get install -y apt-transport-https && \
     apt-get update -y && \
-    apt-get install -y dotnet-sdk-3.1 && \
+    apt-get install -y dotnet-sdk-5.0 && \
 # Download and build ONNX Runtime
     cd ${MY_ROOT} && \
     git clone --recursive -b ${ONNXRUNTIME_BRANCH} ${ONNXRUNTIME_REPO} && \
     /bin/sh onnxruntime/dockerfiles/scripts/install_common_deps.sh && \
     pip install onnx==1.9 && \
     cd ${MY_ROOT}/onnxruntime && ./build.sh --config Release --update --build --parallel --use_openvino ${DEVICE} --build_nuget --build_shared_lib && \
+    cp ${MY_ROOT}/onnxruntime/build/Linux/Release/Microsoft.ML.OnnxRuntime.Managed* ${MY_ROOT}/onnxruntime/build/Linux/Release/nuget-artifacts && \
     mv ${MY_ROOT}/onnxruntime/build/Linux/Release/nuget-artifacts ${MY_ROOT} && \
 # Clean-up unnecessary files
     rm -rf ${MY_ROOT}/cmake* /opt/cmake ${MY_ROOT}/onnxruntime && \
diff --git a/onnxruntime/core/providers/openvino/ov_versions/data_ops.cc b/onnxruntime/core/providers/openvino/ov_versions/data_ops.cc
index d8669b5582..0549f71239 100644
--- a/onnxruntime/core/providers/openvino/ov_versions/data_ops.cc
+++ b/onnxruntime/core/providers/openvino/ov_versions/data_ops.cc
@@ -1022,8 +1022,16 @@ bool DataOps::op_is_supported(std::string name, std::vector<SupportedOp>& op_lis
             return true;
           }
 
-         //The operator to be marked true, it should be supported by all the devices specified with HETERO/MULTI/AUTO
-          if (device_id_.find("HETERO") == 0 || device_id_.find("MULTI") == 0 || device_id_.find("AUTO") == 0) {
+          //The operator to be marked true, it should be supported by either of the devices specified with HETERO
+          if (device_id_.find("HETERO") == 0) {
+              status = true;
+              if (device_id_.find(*it) != std::string::npos) {
+                return true;
+              }
+          }
+
+         //The operator to be marked true, it should be supported by all the devices specified with MULTI/AUTO
+          if (device_id_.find("MULTI") == 0 || device_id_.find("AUTO") == 0) {
               status = true;
               if (device_id_.find(*it) == std::string::npos) {
                 return false;
diff --git a/tools/ci_build/github/linux/docker/Dockerfile.ubuntu_openvino b/tools/ci_build/github/linux/docker/Dockerfile.ubuntu_openvino
index eb46ecebdc..2c65ed4cb5 100644
--- a/tools/ci_build/github/linux/docker/Dockerfile.ubuntu_openvino
+++ b/tools/ci_build/github/linux/docker/Dockerfile.ubuntu_openvino
@@ -12,7 +12,7 @@ RUN apt update && apt install -y libnuma1 ocl-icd-libopencl1 && \
 
 WORKDIR /root
 
-ENV INTEL_OPENVINO_DIR /opt/intel/openvino_${OPENVINO_VERSION}.689
+ENV INTEL_OPENVINO_DIR /opt/intel/openvino_${OPENVINO_VERSION}.752
 ENV LD_LIBRARY_PATH $INTEL_OPENVINO_DIR/deployment_tools/inference_engine/lib/intel64:$INTEL_OPENVINO_DIR/deployment_tools/ngraph/lib:$INTEL_OPENVINO_DIR/deployment_tools/inference_engine/external/tbb/lib:/usr/local/openblas/lib:$LD_LIBRARY_PATH
 ENV InferenceEngine_DIR $INTEL_OPENVINO_DIR/deployment_tools/inference_engine/share
 ENV ngraph_DIR $INTEL_OPENVINO_DIR/deployment_tools/ngraph/cmake
@@ -26,7 +26,7 @@ RUN wget https://apt.repos.intel.com/openvino/2021/GPG-PUB-KEY-INTEL-OPENVINO-20
     cd /etc/apt/sources.list.d && \
     echo "deb https://apt.repos.intel.com/openvino/2021 all main">intel-openvino-2021.list && \
     apt update && \ 
-    apt install -y intel-openvino-dev-ubuntu18-2021.4.689 && \
+    apt install -y intel-openvino-dev-ubuntu18-2021.4.752 && \
     cd ${INTEL_OPENVINO_DIR}/install_dependencies && ./install_openvino_dependencies.sh -y
 
 RUN wget https://github.com/intel/compute-runtime/releases/download/19.41.14441/intel-gmmlib_19.3.2_amd64.deb && \