diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ea4416e..a2a7dd8 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -22,14 +22,16 @@ jobs:
         node_version:
           - 18
           - 20
+          - 22
+          - 24
         opendds_branch:
           - master
           - latest-release
         m:
           - {os: ubuntu-22.04, dds_security: 1}
           - {os: ubuntu-22.04, dds_security: 0}
-          - {os: macos-13, dds_security: 1}
-          - {os: macos-13, dds_security: 0}
+          - {os: macos-14, dds_security: 1}
+          - {os: macos-14, dds_security: 0}
           - {os: windows-2022, dds_security: 1}
           - {os: windows-2022, dds_security: 0}
 
@@ -60,13 +62,30 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node_version }}
+          cache: 'npm'
+      - name: 'Get Repository SHAs'
+        id: get-shas
+        shell: bash
+        run: |
+          echo "opendds_sha=$(cd OpenDDS && git rev-parse HEAD)" >> $GITHUB_OUTPUT
+          echo "acetao_sha=$(cd ACE_TAO && git rev-parse HEAD)" >> $GITHUB_OUTPUT
+          echo "mpc_sha=$(cd MPC && git rev-parse HEAD)" >> $GITHUB_OUTPUT
+      - name: 'Cache OpenDDS Build'
+        uses: actions/cache@v4
+        id: cache-opendds
+        with:
+          path: |
+            ACE_TAO
+            OpenDDS
+            MPC
+          key: opendds-build-${{ matrix.m.os }}-${{ matrix.opendds_branch }}-sec${{ matrix.m.dds_security }}-${{ steps.get-shas.outputs.opendds_sha }}-${{ steps.get-shas.outputs.acetao_sha }}
       - name: 'Install xerces (ubuntu)'
         if: ${{ matrix.m.dds_security == 1 && matrix.m.os == 'ubuntu-22.04' }}
         run: |-
           sudo apt-get update
           sudo apt-get -y install libxerces-c-dev
       - name: 'Install xerces (macos)'
-        if: ${{ matrix.m.dds_security == 1 && matrix.m.os == 'macos-13' }}
+        if: ${{ matrix.m.dds_security == 1 && matrix.m.os == 'macos-14' }}
         run: |
           brew install xerces-c
       - name: Setup for run-vcpkg
@@ -81,7 +100,7 @@ jobs:
         uses: lukka/run-vcpkg@v11
         with:
           vcpkgDirectory: '${{ github.workspace }}/vcpkg'
-          vcpkgGitCommitId: 898b728edc5e0d12b50015f9cd18247c4257a3eb
+          vcpkgGitCommitId: 940f58770cee8e2011bfb4847fb2bd70057301a8
           runVcpkgInstall: true
       - name: 'Set Up MSVC Environment'
         if: ${{ matrix.m.os == 'windows-2022' }}
@@ -90,10 +109,10 @@ jobs:
         if: ${{ matrix.m.os == 'windows-2022' }}
         uses: ammaraskar/msvc-problem-matcher@0.3.0
       - name: 'Set Up Problem Matcher (ubuntu / macos)'
-        if: ${{ matrix.m.os == 'ubuntu-22.04' || matrix.m.os == 'macos-13' }}
+        if: ${{ matrix.m.os == 'ubuntu-22.04' || matrix.m.os == 'macos-14' }}
         uses: ammaraskar/gcc-problem-matcher@0.3.0
       - name: 'Set environment variables (ubuntu / macos)'
-        if: ${{ matrix.m.os == 'ubuntu-22.04' || matrix.m.os == 'macos-13' }}
+        if: ${{ matrix.m.os == 'ubuntu-22.04' || matrix.m.os == 'macos-14' }}
         shell: bash
         run: |-
           echo "ACE_ROOT=$GITHUB_WORKSPACE/ACE_TAO/ACE" >> $GITHUB_ENV
@@ -106,8 +125,8 @@ jobs:
           if [ ${{ matrix.m.dds_security }} == 1 ]; then
             CONFIG_OPTIONS+=" --security"
             BUILD_TARGETS+=" OpenDDS_Security"
-            if [ '${{ matrix.m.os }}' == 'macos-13' ]; then
-              CONFIG_OPTIONS+=" --xerces3=$(brew --prefix xerces-c) --openssl=/usr/local/opt/openssl@1.1"
+            if [ '${{ matrix.m.os }}' == 'macos-14' ]; then
+              CONFIG_OPTIONS+=" --xerces3=$(brew --prefix xerces-c) --openssl=$(brew --prefix openssl@3)"
             fi
           fi
           echo "CONFIG_OPTIONS=$CONFIG_OPTIONS" >> $GITHUB_ENV
@@ -130,7 +149,7 @@ jobs:
           echo "BUILD_TARGETS=DCPSInfoRepo_Main;OpenDDS_Rtps_Udp$BUILD_TARGETS" >> $GITHUB_ENV
           echo "ACE_TEST_LOG_STUCK_STACKS=1" >> $GITHUB_ENV
       - name: 'Configure & Build OpenDDS (ubuntu / macos)'
-        if: ${{ matrix.m.os == 'ubuntu-22.04' || matrix.m.os == 'macos-13' }}
+        if: ${{ (matrix.m.os == 'ubuntu-22.04' || matrix.m.os == 'macos-14') && steps.cache-opendds.outputs.cache-hit != 'true' }}
         shell: bash
         run: |-
           echo "dds_security=${{ matrix.m.dds_security }}; CONFIG_OPTIONS=${{ env.CONFIG_OPTIONS }}; BUILD_TARGETS=${{ env.BUILD_TARGETS }}"
@@ -140,7 +159,7 @@ jobs:
           . setenv.sh
           make -j$(getconf _NPROCESSORS_ONLN) ${{ env.BUILD_TARGETS }}
       - name: 'Configure OpenDDS (windows)'
-        if: ${{ matrix.m.os == 'windows-2022' }}
+        if: ${{ matrix.m.os == 'windows-2022' && steps.cache-opendds.outputs.cache-hit != 'true' }}
         shell: cmd
         run: |-
           echo "dds_security=${{ matrix.m.dds_security }}; CONFIG_OPTIONS=${{ env.CONFIG_OPTIONS }}; BUILD_TARGETS=${{ env.BUILD_TARGETS }}"
@@ -148,14 +167,14 @@ jobs:
           configure --no-tests ${{ env.CONFIG_OPTIONS }}
           perl tools/scripts/show_build_config.pl
       - name: 'Build OpenDDS (windows)'
-        if: ${{ matrix.m.os == 'windows-2022' }}
+        if: ${{ matrix.m.os == 'windows-2022' && steps.cache-opendds.outputs.cache-hit != 'true' }}
         shell: cmd
         run: |-
           cd OpenDDS
           call setenv.cmd
           msbuild -p:Configuration=Debug,Platform=x64 -t:${{ env.BUILD_TARGETS }} -m DDS_TAOv2.sln
       - name: 'Install (ubuntu / macos)'
-        if: ${{ matrix.m.os == 'ubuntu-22.04' || matrix.m.os == 'macos-13' }}
+        if: ${{ matrix.m.os == 'ubuntu-22.04' || matrix.m.os == 'macos-14' }}
         shell: bash
         run: |-
           npm install
@@ -176,12 +195,12 @@ jobs:
           echo Core file pattern set to:
           cat /proc/sys/kernel/core_pattern
       - name: 'Change Cores Directory Permissions (macos)'
-        if: ${{ matrix.m.os == 'macos-13' }}
+        if: ${{ matrix.m.os == 'macos-14' }}
         shell: bash
         run: |
           sudo chmod o+w /cores
       - name: 'Test (ubuntu / macos)'
-        if: ${{ matrix.m.os == 'ubuntu-22.04' || matrix.m.os == 'macos-13' }}
+        if: ${{ matrix.m.os == 'ubuntu-22.04' || matrix.m.os == 'macos-14' }}
         shell: bash
         run: |-
           ulimit -c unlimited
@@ -193,7 +212,7 @@ jobs:
           ./run_test.pl node2cpp --rtps
           ./run_test.pl node2node --rtps
       - name: 'Test Secure (ubuntu / macos)'
-        if: ${{ (matrix.m.os == 'ubuntu-22.04' || matrix.m.os == 'macos-13') && matrix.m.dds_security == 1 }}
+        if: ${{ (matrix.m.os == 'ubuntu-22.04' || matrix.m.os == 'macos-14') && matrix.m.dds_security == 1 }}
         shell: bash
         run: |-
           ulimit -c unlimited
diff --git a/README.md b/README.md
index 65ec7cd..1862898 100644
--- a/README.md
+++ b/README.md
@@ -8,13 +8,25 @@
     * If using security, you may need to ensure that OpenDDS is built with the same version of OpenSSL used by Node.js
 
 ## Tested platforms:
-* Node LTS versions 8, 10, 12, 14, 16, 18, 20
+* Node LTS versions 18, 20, 22, 24
 * Linux (Ubuntu 20.04) x86_64 using gcc 9.4.0
 * Linux (Ubuntu 22.04) x86_64 using gcc 11.2.0 (w/ openssl-1.1.1q)
 * Windows (Server 2022) x86_64 using Visual Studio Enterprise 2022
 * macOS (11.7) x86_54 using clang 13.0
 * Other OpenDDS-supported platforms should work, but may required changes to binding.gyp
 
+## Quality of Service (QoS)
+When passing QoS objects to entities, note that fields defined as sequences (like `representation`) must be passed as arrays, even if they only contain a single value. For example, to set the `representation` QoS for a DataWriter, the property should be structured like this:
+
+```javascript
+let qos = {
+  // ... other QoS settings
+  representation: {
+    value: ["DDS::XCDR_DATA_REPRESENTATION"]
+  }
+};
+```
+
 ## Building and running the tests
 * In OpenDDS directory:
 ```
@@ -40,6 +52,12 @@ $ node-gyp configure build
 
 ## Changelog
 
+### Version 0.3.1
+
+* Added support for Node.js 22 and 24 (Updated `nan` dependency)
+* Fixed an issue where invalid-data callbacks included misleading sample payloads
+* Implemented map types in `ValueReader` and `ValueWriter` to satisfy updated OpenDDS interfaces
+
 ### Version 0.3.0
 
 * Update NodeValueWriter and NodeValueReader accordingly to the ValueWriter and ValueReader changes in OpenDDS 3.28.0
diff --git a/package-lock.json b/package-lock.json
index 022600d..155246f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,21 +10,21 @@
       "hasInstallScript": true,
       "license": "BSD-3-Clause",
       "dependencies": {
-        "nan": "^2.19.0"
+        "nan": "^2.26.2"
       }
     },
     "node_modules/nan": {
-      "version": "2.22.1",
-      "resolved": "https://registry.npmjs.org/nan/-/nan-2.22.1.tgz",
-      "integrity": "sha512-pfRR4ZcNTSm2ZFHaztuvbICf+hyiG6ecA06SfAxoPmuHjvMu0KUIae7Y8GyVkbBqeEIidsmXeYooWIX9+qjfRQ==",
+      "version": "2.26.2",
+      "resolved": "https://registry.npmjs.org/nan/-/nan-2.26.2.tgz",
+      "integrity": "sha512-0tTvBTYkt3tdGw22nrAy50x7gpbGCCFH3AFcyS5WiUu7Eu4vWlri1woE6qHBSfy11vksDqkiwjOnlR7WV8G1Hw==",
       "license": "MIT"
     }
   },
   "dependencies": {
     "nan": {
-      "version": "2.22.1",
-      "resolved": "https://registry.npmjs.org/nan/-/nan-2.22.1.tgz",
-      "integrity": "sha512-pfRR4ZcNTSm2ZFHaztuvbICf+hyiG6ecA06SfAxoPmuHjvMu0KUIae7Y8GyVkbBqeEIidsmXeYooWIX9+qjfRQ=="
+      "version": "2.26.2",
+      "resolved": "https://registry.npmjs.org/nan/-/nan-2.26.2.tgz",
+      "integrity": "sha512-0tTvBTYkt3tdGw22nrAy50x7gpbGCCFH3AFcyS5WiUu7Eu4vWlri1woE6qHBSfy11vksDqkiwjOnlR7WV8G1Hw=="
     }
   }
 }
diff --git a/package.json b/package.json
index e8ed841..e6ad91c 100755
--- a/package.json
+++ b/package.json
@@ -28,6 +28,6 @@
   "license": "BSD-3-Clause",
   "gypfile": true,
   "dependencies": {
-    "nan": "^2.19.0"
+    "nan": "^2.26.2"
   }
 }
diff --git a/src/NodeValueReader.cpp b/src/NodeValueReader.cpp
index 8cf15dc..56a0dcc 100644
--- a/src/NodeValueReader.cpp
+++ b/src/NodeValueReader.cpp
@@ -191,6 +191,36 @@ bool NodeValueReader::end_element()
   return true;
 }
 
+bool NodeValueReader::begin_map(OpenDDS::XTypes::TypeKind /*key_kind*/, OpenDDS::XTypes::TypeKind /*value_kind*/)
+{
+  return false;
+}
+
+bool NodeValueReader::end_map()
+{
+  return false;
+}
+
+bool NodeValueReader::begin_key()
+{
+  return false;
+}
+
+bool NodeValueReader::end_key()
+{
+  return false;
+}
+
+bool NodeValueReader::begin_value()
+{
+  return false;
+}
+
+bool NodeValueReader::end_value()
+{
+  return false;
+}
+
 bool NodeValueReader::read_boolean(ACE_CDR::Boolean& value)
 {
   return primitive_helper<v8::Boolean>(value, &v8::Value::IsBoolean);
diff --git a/src/NodeValueReader.h b/src/NodeValueReader.h
index 55cbafa..bad4f97 100644
--- a/src/NodeValueReader.h
+++ b/src/NodeValueReader.h
@@ -49,6 +49,13 @@ class NodeValueReader : public OpenDDS::DCPS::ValueReader {
   bool begin_element();
   bool end_element();
 
+  bool begin_map(OpenDDS::XTypes::TypeKind key_kind, OpenDDS::XTypes::TypeKind value_kind);
+  bool end_map();
+  bool begin_key();
+  bool end_key();
+  bool begin_value();
+  bool end_value();
+
   bool read_boolean(ACE_CDR::Boolean& value);
   bool read_byte(ACE_CDR::Octet& value);
 #if OPENDDS_HAS_EXPLICIT_INTS
diff --git a/src/NodeValueWriter.cpp b/src/NodeValueWriter.cpp
index 2831409..22359b9 100644
--- a/src/NodeValueWriter.cpp
+++ b/src/NodeValueWriter.cpp
@@ -121,6 +121,36 @@ bool NodeValueWriter::end_element()
   return true;
 }
 
+bool NodeValueWriter::begin_map(OpenDDS::XTypes::TypeKind /*key_kind*/, OpenDDS::XTypes::TypeKind /*value_kind*/)
+{
+  return false;
+}
+
+bool NodeValueWriter::end_map()
+{
+  return false;
+}
+
+bool NodeValueWriter::begin_key()
+{
+  return false;
+}
+
+bool NodeValueWriter::end_key()
+{
+  return false;
+}
+
+bool NodeValueWriter::begin_value()
+{
+  return false;
+}
+
+bool NodeValueWriter::end_value()
+{
+  return false;
+}
+
 bool NodeValueWriter::write_boolean(ACE_CDR::Boolean value)
 {
   return primitive_helper<ACE_CDR::Boolean, v8::Boolean>(value);
diff --git a/src/NodeValueWriter.h b/src/NodeValueWriter.h
index 79828e2..7639224 100644
--- a/src/NodeValueWriter.h
+++ b/src/NodeValueWriter.h
@@ -36,6 +36,13 @@ class NodeValueWriter : public OpenDDS::DCPS::ValueWriter {
   bool begin_element(ACE_CDR::ULong idx);
   bool end_element();
 
+  bool begin_map(OpenDDS::XTypes::TypeKind key_kind, OpenDDS::XTypes::TypeKind value_kind);
+  bool end_map();
+  bool begin_key();
+  bool end_key();
+  bool begin_value();
+  bool end_value();
+
   bool write_boolean(ACE_CDR::Boolean value);
   bool write_byte(ACE_CDR::Octet value);
 #if OPENDDS_HAS_EXPLICIT_INTS