diff --git a/.github/workflows/build_pat.yaml b/.github/workflows/build_pat.yaml
index 4a6efdc5..c731dcd2 100755
--- a/.github/workflows/build_pat.yaml
+++ b/.github/workflows/build_pat.yaml
@@ -8,7 +8,7 @@ on:
     branches:
       -  '*'
     tags:
-      - '*' 
+      - '*'
 
 jobs:
   pat_build:
@@ -39,10 +39,10 @@ jobs:
 
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Node ${{ matrix.node-version }}
-      uses: actions/setup-node@v3
+      uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
 
@@ -60,7 +60,7 @@ jobs:
           sudo ./qtfiw_installer/QtInstallerFramework-macOS-x64-4.3.0.app/Contents/MacOS/QtInstallerFramework-macOS-x64-4.3.0 --verbose --script ./ci/install_script_qtifw.qs
           ls ~/Qt/QtIFW-4.3.0 || true
           echo "~/Qt/QtIFW-4.3.0/bin/" >> $GITHUB_PATH
-          echo MACOSX_DEPLOYMENT_TARGET=${{ matrix.MACOSX_DEPLOYMENT_TARGET }} >> $GITHUB_ENV  
+          echo MACOSX_DEPLOYMENT_TARGET=${{ matrix.MACOSX_DEPLOYMENT_TARGET }} >> $GITHUB_ENV
           # echo CMAKE_MACOSX_DEPLOYMENT_TARGET='-DCMAKE_OSX_DEPLOYMENT_TARGET=$MACOSX_DEPLOYMENT_TARGET' >> $GITHUB_ENV
         elif [ "$RUNNER_OS" == "Windows" ]; then
           curl -L -O https://download.qt.io/archive/qt-installer-framework/4.3.0/QtInstallerFramework-windows-x86-4.3.0.exe
@@ -71,7 +71,7 @@ jobs:
           #echo CMAKE_GENERATOR='Visual Studio 16 2019' >> $GITHUB_ENV
           #echo CMAKE_GENERATOR_PLATFORM=x64 >> $GITHUB_ENV
           # C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise
-          # Command below no longer working and returning the version number. 
+          # Command below no longer working and returning the version number.
           # MSVC_DIR=$(cmd.exe /c "vswhere -products * -requires Microsoft.Component.MSBuild -property installationPath -latest")
           MSVC_DIR="C:\Program Files\Microsoft Visual Studio\2022\Enterprise"
           echo "Latest is: $MSVC_DIR"
@@ -80,6 +80,10 @@ jobs:
           echo "$MSVC_DIR\VC\Auxiliary\Build" >> $GITHUB_PATH
         fi;
 
+        N=$(nproc 2>/dev/null || sysctl -n hw.logicalcpu)
+        echo "There are $N threads available"
+        echo "N=$N" >> $GITHUB_ENV
+
     - name: Create Build Directory
       run: cmake -E make_directory ./build/
 
@@ -92,8 +96,8 @@ jobs:
         echo "Using vcvarsall to initialize the development environment"
         call vcvarsall.bat x64
         cmake -G "Visual Studio 17 2022" -A x64 ..
-        cmake --build . --target package -j 2 --config Release
-      
+        cmake --build . --target package -j ${{ env.N }} --config Release
+
     - name: Configure CMake & build (Linux)
       working-directory: ./build
       if: runner.os == 'Linux'
@@ -108,7 +112,7 @@ jobs:
               -DCPACK_BINARY_STGZ=OFF \
               -DCPACK_BINARY_TBZ2=OFF \
               ../
-        cmake --build . --target package -j 2
+        cmake --build . --target package -j $N
 
     - name: Configure CMake & build (macOS)
       working-directory: ./build
@@ -120,12 +124,13 @@ jobs:
               -DCMAKE_OSX_ARCHITECTURES="arm64;x86_64" \
               -DCMAKE_BUILD_TYPE=Release \
               ../
-        cmake --build . --target package -j 2
+        cmake --build . --target package -j $N
 
     - name: Save artifact
       uses: actions/upload-artifact@v4
       with:
         name: PAT-Installer-${{ matrix.name }}
         path: ./build/ParametricAnalysisTool-*
+        #name: OpenStudio-PAT-{{ matrix.name }}-${{ github.sha }}
+
 
-  
diff --git a/.github/workflows/playwright.yml b/.github/workflows/playwright.yml
index 48f8322e..6cb8243e 100644
--- a/.github/workflows/playwright.yml
+++ b/.github/workflows/playwright.yml
@@ -8,10 +8,10 @@ on:
 jobs:
   test:
     timeout-minutes: 60
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-node@v3
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
         with:
           node-version: 17
           cache: npm
@@ -23,7 +23,7 @@ jobs:
         run: npm ci
       - name: Cache runtime dependencies
         id: cache-runtime-deps
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: depend/
           key: ${{ runner.os }}-${{ hashFiles('manifest.json') }}
@@ -35,7 +35,7 @@ jobs:
       - name: Prepare tmp test files
         run: npm run test:tmpFiles
       - name: Run playwright tests
-        uses: GabrielBB/xvfb-action@v1
+        uses: coactions/setup-xvfb@v1
         with:
           run: |
             npm run test:parallel
diff --git a/app/app/main/measureManagerService.js b/app/app/main/measureManagerService.js
index 7d3c3699..184b9317 100644
--- a/app/app/main/measureManagerService.js
+++ b/app/app/main/measureManagerService.js
@@ -61,7 +61,6 @@ export class MeasureManager {
 
   startMeasureManager() {
     const vm = this;
-
     // find an open port
     portfinder.getPortPromise({
       port: 3100,
@@ -70,12 +69,11 @@ export class MeasureManager {
       vm.port = port;
       vm.$log.info('Measure Manager port: ', vm.port);
 
-      vm.$log.info('Start Measure Manager Server: ', vm.cliPath, ' measure -s ', vm.port);
-      vm.cli = vm.spawn(vm.cliPath, ['classic', 'measure', '-s', vm.port]);
+      vm.$log.info('Start Measure Manager Server: ', vm.cliPath, 'measure -s ', vm.port);
+      vm.cli = vm.spawn(vm.cliPath, ['measure', '-s', vm.port], { cwd: '.', stdio : 'pipe' });
       vm.cli.stdout.on('data', (data) => {
         // record errors
         if (data.indexOf('<0>') !== -1) {
-          // WARNING
           vm.$log.warn(`MeasureManager WARNING: ${data}`);
           vm.Message.appendMeasureManagerError({type: 'warning', data: data.toString()});
         } else if (data.indexOf('<1>') !== -1) {
@@ -83,54 +81,49 @@ export class MeasureManager {
           vm.$log.error(`MeasureManager ERROR: ${data}`);
           vm.Message.appendMeasureManagerError({type: 'error', data: data.toString()});
         } else if(data.indexOf('<2>') !== -1) {
-          // ERROR
+          // FATAL
           vm.$log.error(`MeasureManager ERROR: ${data}`);
           vm.Message.appendMeasureManagerError({type: 'fatal', data: data.toString()});
+        } else {
+          if (vm.Message.showDebug()) {
+            vm.$log.debug(`MeasureManager: ${data}`);
+          }
         }
-        else {
-          if (vm.Message.showDebug()) vm.$log.debug(`MeasureManager: ${data}`);
-        }
+
         // check that the mm was started correctly: resolve readyDeferred
         const str = data.toString();
-        if (str.indexOf('WEBrick::HTTPServer#start: pid=') !== -1) {
-          if (vm.Message.showDebug()) vm.$log.debug('Found WEBrick Start!, resolve promise');
-          vm.mmReadyDeferred.resolve();
-        }
-        // TODO: THIS IS TEMPORARY (windows):
-        else if (str.indexOf('Only one usage of each socket address') !== -1) {
-          if (vm.Message.showDebug()) vm.$log.debug('WEBrick already running...assuming MeasureManager is already up');
+        if ((str.indexOf('Accepting requests on:') !== -1) ||
+            (str.indexOf('MeasureManager Ready') !== -1)) {
+          vm.$log.info('Found MeasureManager Start, MeasureManager is running');
           vm.mmReadyDeferred.resolve();
         }
-        // TODO: THIS IS TEMPORARY (mac):
-        else if (str.indexOf('Error: Address already in use') !== -1) {
-          if (vm.Message.showDebug()) vm.$log.debug('WEBrick already running...assuming MeasureManager is already up');
-          vm.mmReadyDeferred.resolve();
-        }
-
       });
       vm.cli.stderr.on('data', (data) => {
-        vm.$log.info(`MeasureManager: ${data}`);
-        // check that the mm was started correctly: resolve readyDeferred
-        const str = data.toString();
-        if (str.indexOf('WEBrick::HTTPServer#start: pid=') !== -1) {
-          if (vm.Message.showDebug()) vm.$log.debug('Found WEBrick Start!, resolve promise');
-          vm.mmReadyDeferred.resolve();
-        }
-        // TODO: THIS IS TEMPORARY (windows):
-        else if (str.indexOf('Only one usage of each socket address') !== -1) {
-          if (vm.Message.showDebug()) vm.$log.debug('WEBrick already running...using tempMeasureManager');
-          vm.mmReadyDeferred.resolve();
-        }
-        // TODO: THIS IS TEMPORARY (mac):
-        else if (str.indexOf('Error: Address already in use') !== -1) {
-          if (vm.Message.showDebug()) vm.$log.debug('WEBrick already running...using tempMeasureManager');
-          vm.mmReadyDeferred.resolve();
-        }
+        // C++ CLI printing errors when requests fail on stderr, eg when post
+        // data is missing:
+        // [2024-11-14T13:32:17+01:00] "POST /compute_arguments HTTP/1.1" 400
+        vm.$log.error(`MeasureManager: ${data}`);
+      });
+      vm.cli.on('error', (err) => {
+        console.log('Failed to start measure manager');
       });
+      vm.cli.on('message', (msg) => {
+        console.log(`child message due to receipt of signal ${msg}`);
+      });
+
       vm.cli.on('close', (code) => {
         vm.$log.info(`Measure Manager exited with code ${code}`);
       });
-    }).catch(() => vm.$log.error('Error locating an open port for measure manager.'));
+      vm.cli.on('exit', (code) => {
+        if (code !== 0) {
+          const msg = `Failed with code = ${code}`;
+          console.log(msg);
+        }
+      });
+
+    }).catch((err) => {
+      vm.$log.error('Error locating an open port for measure manager.');
+    });
   }
 
   stopMeasureManager() {
@@ -249,7 +242,6 @@ export class MeasureManager {
 
     // reset MeasureManagerErrors when a new action
     vm.Message.resetMeasureManagerErrors();
-
     return vm.$http.post(`${vm.url}:${vm.port}/set`, params)
       .then(res => {
         vm.$log.info('Measure Manager setMyMeasuresDir Success!, status: ', res.status);
@@ -289,7 +281,10 @@ export class MeasureManager {
       .then(res => {
         vm.$log.info('Measure Manager download_bcl_measure Success!, status: ', res.status);
         vm.$log.info('Data: ', res.data);
-        return res.data[0];
+        // Classic (Ruby) CLI uses to return a single-element list
+        // C++ CLI returns the element directly
+        //return res.data[0];
+        return res.data
       })
       .catch(res => {
         vm.$log.error('Measure Manager download_bcl_measure Error: ', res.data);
diff --git a/copyright.txt b/copyright.txt
index 22166f0d..164a6e2f 100644
--- a/copyright.txt
+++ b/copyright.txt
@@ -1,5 +1,5 @@
 OpenStudio
-Copyright (c) 2008-2020, Alliance for Sustainable Energy
+Copyright (c) 2008-2025, Alliance for Sustainable Energy
 All Rights Reserved.
 
 
diff --git a/license.txt b/license.txt
index 8152cae1..28b9d31b 100644
--- a/license.txt
+++ b/license.txt
@@ -1,4 +1,4 @@
-Copyright (c) 2008-2020, Alliance for Sustainable Energy.
+Copyright (c) 2008-2025, Alliance for Sustainable Energy.
 All rights reserved.
 
                                    NOTICE