diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1b81fa972..a079dac63 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -251,7 +251,11 @@ jobs:
 
     timeout-minutes: 180
     runs-on: ${{matrix.os}}
-    container: ${{matrix.container}}
+    container:
+      image: ${{matrix.container}}
+      volumes:
+        - /node20217:/node20217:rw,rshared
+        - ${{ startsWith(matrix.container, 'ubuntu:1') && '/node20217:/__e/node20:ro,rshared' || ' ' }}
 
     steps:
       - name: Setup environment
@@ -275,9 +279,13 @@ jobs:
                     fi
                     apt-get -o Acquire::Retries=$NET_RETRY_COUNT install -y sudo software-properties-common tzdata wget curl apt-transport-https ca-certificates make build-essential g++ $PYTHON_PACKAGE python3 perl git cmake
                 fi
+                if [[ "${{matrix.container}}" == "ubuntu:1"* ]]; then
+                  # Node 20 doesn't work with Ubuntu 16/18  glibc: https://github.com/actions/checkout/issues/1590
+                  curl -sL https://archives.boost.io/misc/node/node-v20.9.0-linux-x64-glibc-217.tar.xz | tar -xJ --strip-components 1 -C /node20217
+                fi
             fi
             git config --global pack.threads 0
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Install packages
         if: matrix.install
@@ -489,7 +497,7 @@ jobs:
     runs-on: ${{matrix.os}}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Boost
         shell: cmd
@@ -533,11 +541,11 @@ jobs:
     runs-on: ${{matrix.os}}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Install packages
         if: matrix.install
-        run: sudo apt install ${{matrix.install}}
+        run: sudo apt-get -y install ${{matrix.install}}
 
       - name: Setup Boost
         run: |
@@ -582,7 +590,7 @@ jobs:
     runs-on: ${{matrix.os}}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Install packages
         if: matrix.install
@@ -641,7 +649,7 @@ jobs:
     runs-on: ${{matrix.os}}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Install packages
         if: matrix.install
@@ -698,7 +706,7 @@ jobs:
     runs-on: windows-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup MSYS2 environment
         uses: msys2/setup-msys2@v2
@@ -709,7 +717,7 @@ jobs:
           pacboy: gcc:p cmake:p ninja:p
 
       - name: Fetch Boost.CI
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: boostorg/boost-ci
           ref: master
diff --git a/.github/workflows/metal.yml b/.github/workflows/metal.yml
index b0c426136..dcbf89837 100644
--- a/.github/workflows/metal.yml
+++ b/.github/workflows/metal.yml
@@ -1,6 +1,6 @@
 # ------------------------------------------------------------------------------
-#  Copyright Matt Borland 2023.
-#  Copyright Christopher Kormanyos 2023.
+#  Copyright Matt Borland 2023 - 2024.
+#  Copyright Christopher Kormanyos 2023 - 2024.
 #  Distributed under the Boost Software License,
 #  Version 1.0. (See accompanying file LICENSE_1_0.txt
 #  or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -27,28 +27,44 @@ jobs:
           fetch-depth: '0'
       - name: update-tools
         run: |
-          sudo apt install libncurses5 libpython2.7
+          sudo apt update
+          wget http://security.ubuntu.com/ubuntu/pool/universe/n/ncurses/libtinfo5_6.3-2ubuntu0.1_amd64.deb
+          sudo apt install ./libtinfo5_6.3-2ubuntu0.1_amd64.deb
+          wget http://security.ubuntu.com/ubuntu/pool/universe/n/ncurses/libncursesw5_6.3-2ubuntu0.1_amd64.deb
+          sudo apt install ./libncursesw5_6.3-2ubuntu0.1_amd64.deb
           mkdir -p emu_env && cd emu_env
-          wget --no-check-certificate https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu-rm/10.3-2021.10/gcc-arm-none-eabi-10.3-2021.10-x86_64-linux.tar.bz2
-          tar -xf gcc-arm-none-eabi-10.3-2021.10-x86_64-linux.tar.bz2
-          wget --no-check-certificate https://github.com/xpack-dev-tools/qemu-arm-xpack/releases/download/v7.1.0-1/xpack-qemu-arm-7.1.0-1-linux-x64.tar.gz
-          tar -xzf xpack-qemu-arm-7.1.0-1-linux-x64.tar.gz
+          wget --no-check-certificate https://developer.arm.com/-/media/Files/downloads/gnu/13.3.rel1/binrel/arm-gnu-toolchain-13.3.rel1-x86_64-arm-none-eabi.tar.xz
+          tar -xf arm-gnu-toolchain-13.3.rel1-x86_64-arm-none-eabi.tar.xz
+          wget --no-check-certificate https://github.com/xpack-dev-tools/qemu-arm-xpack/releases/download/v8.2.6-1/xpack-qemu-arm-8.2.6-1-linux-x64.tar.gz
+          tar -xzf xpack-qemu-arm-8.2.6-1-linux-x64.tar.gz
         working-directory: ./test/metal/
       - name: build benchmark_single-stm32f429
         run: |
+          PATH="${{ runner.workspace }}/decimal/test/metal/emu_env/arm-gnu-toolchain-13.3.rel1-x86_64-arm-none-eabi/bin:$PATH"
+          echo 'Query arm-none-eabi-g++ version'
+          echo
+          arm-none-eabi-g++ -v
+          echo
           mkdir -p bin
-          emu_env/gcc-arm-none-eabi-10.3-2021.10/bin/arm-none-eabi-g++ -std=c++17 -Wall -Wextra -Wpedantic -Os -g -gdwarf-2 -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -fno-inline-functions -mcpu=cortex-m4 -mtune=cortex-m4 -mthumb -mfloat-abi=soft -mno-unaligned-access -mno-long-calls -I../../include -DBOOST_DECIMAL_DISABLE_CLIB -DAPP_BENCHMARK_STANDALONE_MAIN app_benchmark_non_std_decimal.cpp ./target/micros/stm32f429/make/single/crt.cpp ./target/micros/stm32f429/make/single/mcal_gcc_cxx_completion_with_stdlib.cpp -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_non_std_decimal.map -T ./target/micros/stm32f429/make/stm32f429.ld --specs=nano.specs --specs=nosys.specs -Wl,--print-memory-usage -o ./bin/app_benchmark_non_std_decimal.elf
-          emu_env/gcc-arm-none-eabi-10.3-2021.10/bin/arm-none-eabi-objcopy ./bin/app_benchmark_non_std_decimal.elf -O ihex ./bin/app_benchmark_non_std_decimal.hex
+          arm-none-eabi-g++ -std=c++20 -Wall -Wextra -Wpedantic -Os -g -gdwarf-2 -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -fno-inline-functions -mcpu=cortex-m4 -mtune=cortex-m4 -mthumb -mfloat-abi=soft -mno-unaligned-access -mno-long-calls -I../../include -DBOOST_DECIMAL_DISABLE_CLIB -DAPP_BENCHMARK_STANDALONE_MAIN app_benchmark_non_std_decimal.cpp ./target/micros/stm32f429/make/single/crt.cpp ./target/micros/stm32f429/make/single/mcal_gcc_cxx_completion_with_stdlib.cpp -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_non_std_decimal.map -T ./target/micros/stm32f429/make/stm32f429.ld --specs=nano.specs --specs=nosys.specs -Wl,--print-memory-usage -o ./bin/app_benchmark_non_std_decimal.elf
+          arm-none-eabi-objcopy ./bin/app_benchmark_non_std_decimal.elf -O ihex ./bin/app_benchmark_non_std_decimal.hex
           ls -la ./bin/app_benchmark_non_std_decimal.elf ./bin/app_benchmark_non_std_decimal.hex ./bin/app_benchmark_non_std_decimal.map
         working-directory: ./test/metal/
       - name: emulate-target stm32f429
         run: |
-          ./emu_env/xpack-qemu-arm-7.1.0-1/bin/qemu-system-gnuarmeclipse --verbose --mcu STM32F429ZI --nographic --gdb tcp::9999 -d unimp,guest_errors &
+          PATH="${{ runner.workspace }}/decimal/test/metal/emu_env/xpack-qemu-arm-8.2.6-1/bin:$PATH"
+          qemu-system-gnuarmeclipse --verbose --mcu STM32F429ZI --nographic --gdb tcp::9999 -d unimp,guest_errors &
+          sleep 2
         working-directory: ./test/metal/
       - name: run-test-on-target
         run: |
-          ./emu_env/gcc-arm-none-eabi-10.3-2021.10/bin/arm-none-eabi-gdb-py ./bin/app_benchmark_non_std_decimal.elf -x ./target/build/test_app_benchmarks_emulator.py
-          qemu_result=$?
-          echo "qemu_result" "$qemu_result"
-          echo "qemu_result" "$qemu_result" | grep 'qemu_result 0'
+          sleep 2
+          PATH="${{ runner.workspace }}/decimal/test/metal/emu_env/arm-gnu-toolchain-13.3.rel1-x86_64-arm-none-eabi/bin:$PATH"
+          echo 'Run test on target'
+          echo
+          arm-none-eabi-gdb ./bin/app_benchmark_non_std_decimal.elf -x ./target/build/test_app_benchmarks_emulator.gdb > ./app_benchmark_non_std_decimal.txt
+          cat ./app_benchmark_non_std_decimal.txt
+          echo
+          echo 'We will now grep for the right answer...'
+          grep 'value 0xF00DCAFE' ./app_benchmark_non_std_decimal.txt
         working-directory: ./test/metal/
diff --git a/test/metal/app_benchmark_non_std_decimal.cpp b/test/metal/app_benchmark_non_std_decimal.cpp
index 4a6599c76..b818d9595 100644
--- a/test/metal/app_benchmark_non_std_decimal.cpp
+++ b/test/metal/app_benchmark_non_std_decimal.cpp
@@ -12,7 +12,7 @@
 
 // cd /mnt/c/MyGitRepos/cppalliance/decimal/test/metal
 // mkdir -p bin
-// arm-none-eabi-g++ -std=c++17 -Wall -Wextra -Wpedantic -O0 -g -gdwarf-2 -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=128 -mcpu=cortex-m4 -mtune=cortex-m4 -mthumb -mfloat-abi=soft -mno-unaligned-access -mno-long-calls -I../../include -DBOOST_DECIMAL_DISABLE_CLIB -DAPP_BENCHMARK_STANDALONE_MAIN app_benchmark_non_std_decimal.cpp ./target/micros/stm32f429/make/single/crt.cpp ./target/micros/stm32f429/make/single/mcal_gcc_cxx_completion_with_stdlib.cpp -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_non_std_decimal.map -T ./target/micros/stm32f429/make/stm32f429.ld --specs=nano.specs --specs=nosys.specs -Wl,--print-memory-usage -o ./bin/app_benchmark_non_std_decimal.elf
+// arm-none-eabi-g++ -std=c++20 -Wall -Wextra -Wpedantic -O0 -g -gdwarf-2 -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=128 -mcpu=cortex-m4 -mtune=cortex-m4 -mthumb -mfloat-abi=soft -mno-unaligned-access -mno-long-calls -I../../include -DBOOST_DECIMAL_DISABLE_CLIB -DAPP_BENCHMARK_STANDALONE_MAIN app_benchmark_non_std_decimal.cpp ./target/micros/stm32f429/make/single/crt.cpp ./target/micros/stm32f429/make/single/mcal_gcc_cxx_completion_with_stdlib.cpp -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_non_std_decimal.map -T ./target/micros/stm32f429/make/stm32f429.ld --specs=nano.specs --specs=nosys.specs -Wl,--print-memory-usage -o ./bin/app_benchmark_non_std_decimal.elf
 // arm-none-eabi-objcopy ./bin/app_benchmark_non_std_decimal.elf -O ihex ./bin/app_benchmark_non_std_decimal.hex
 // ls -la ./bin/app_benchmark_non_std_decimal.elf ./bin/app_benchmark_non_std_decimal.hex ./bin/app_benchmark_non_std_decimal.map
 
diff --git a/test/metal/target/build/test_app_benchmarks_emulator.gdb b/test/metal/target/build/test_app_benchmarks_emulator.gdb
new file mode 100644
index 000000000..c85858ba3
--- /dev/null
+++ b/test/metal/target/build/test_app_benchmarks_emulator.gdb
@@ -0,0 +1,28 @@
+# ///////////////////////////////////////////////////////////////////
+# //  Copyright Christopher Kormanyos 2020 - 2024.
+# //  Distributed under the Boost Software License,
+# //  Version 1.0. (See accompanying file LICENSE_1_0.txt
+# //  or copy at http://www.boost.org/LICENSE_1_0.txt)
+# //
+
+# Connect to the target (e.g., OpenOCD or another GDB server).
+target remote localhost:9999
+monitor halt
+
+# Ensure that the program is loaded.
+load
+
+# Set a breakpoint at the specified subroutine.
+break app_benchmark_get_standalone_result
+
+# Start or continue program execution.
+continue
+
+# Format and print the value of a variable.
+printf "value 0x%X\n\n", app_benchmark_standalone_result
+
+# Delete (all) breakpoint(s).
+delete
+
+# Perform a non-elegant quit of the GDB session.
+quit
diff --git a/test/metal/target/build/test_app_benchmarks_emulator.py b/test/metal/target/build/test_app_benchmarks_emulator.py
deleted file mode 100644
index 44bf8af57..000000000
--- a/test/metal/target/build/test_app_benchmarks_emulator.py
+++ /dev/null
@@ -1,131 +0,0 @@
-#-------------------------------------------------------------------------------
-# Name:        test_app_benchmarks_emulator.py
-# Purpose:
-#
-# Author:      Christopher Kormanyos
-#
-# Created:     02/04/2021
-#
-# Copyright:   Copyright Christopher Kormanyos 2020 - 2023
-#
-# Licence:     Distributed under the Boost Software License,
-#              Version 1.0. (See accompanying file LICENSE_1_0.txt
-#              or copy at http://www.boost.org/LICENSE_1_0.txt)
-#-------------------------------------------------------------------------------
-
-#!/usr/bin/env python2
-
-# import python packages
-import gdb
-import time
-import logging
-import sys
-
-#-------------------------------------------------------------------------------
-# --- class: qemu_emulator
-#-------------------------------------------------------------------------------
-class qemu_emulator:
-    def __init__(self, tcp_port, iterations):
-        self.tcp_port   = tcp_port
-        self.iterations = iterations
-
-    # qemu initialization
-    def initialize(self):
-        self.connect_to_server(self.tcp_port)
-        self.create_log_file()
-        self.load_elf()
-
-    # Excute gdb commands
-    def execute(self, command, from_tty = False, to_string = False):
-        gdb.execute('{}'.format(command), from_tty, to_string)
-
-    # Create log file
-    def create_log_file(self):
-        logging.basicConfig(filename='emu-target.log',level=logging.DEBUG, filemode='w')
-        logging.info('------- Running GDB Test -----')
-
-    # Connect to server
-    def connect_to_server(self, tcp_port):
-        self.execute('target remote localhost:{}'.format(tcp_port))
-        self.execute('monitor reset')
-        self.execute('set confirm off')
-
-    # Load object data base
-    def load_elf(self):
-        self.execute('load')
-
-    # Run the benchmark
-    def run(self):
-        self.execute('continue')
-
-    def next(self):
-        self.execute('next')
-
-    # Set gdb Bp
-    def set_gdb_break_point(self):
-        my_bp = gdb.Breakpoint('app_benchmark_get_standalone_result')
-        return my_bp
-
-    # Delete gdb Bp
-    def delete_gdb_break_point(self, bp):
-        bp.delete()
-
-    # Get gdb result
-    def get_gdb_result(self):
-       my_result = gdb.parse_and_eval("app_benchmark_standalone_result")
-       return my_result
-
-    # Convert from gdb type to hex
-    def convert_to_hex(self, gdb_value):
-        val_as_str = str(gdb_value)
-        val_as_hex = hex(int(val_as_str))
-        return val_as_hex
-
-    # Check the gdb return value
-    def check_gdb_result(self, result_as_hex):
-       if result_as_hex == "0xf00dcafe":
-          return True
-       else:
-          return False
-
-#-------------------------------------------------------------------------------
-# --- GDB Script starts here
-# See also https://embeddedartistry.com/blog/2020/11/09/metal-gdb-controlling-gdb-through-python-scripts-with-the-gdb-python-api/
-#-------------------------------------------------------------------------------
-
-# Script Config
-tcp_port   = 9999
-iterations = 64
-
-# Create a qemu object
-obj = qemu_emulator(tcp_port, iterations)
-
-# Initialize
-obj.initialize()
-
-# Set break point
-bp1 = obj.set_gdb_break_point()
-
-# Run the benchmark
-obj.run()
-
-# Get gdb result
-my_value = obj.get_gdb_result()
-time.sleep(0.5)
-
-# Delete break point
-obj.delete_gdb_break_point(bp1)
-
-# Convert gdb result to hex
-value_as_hex = obj.convert_to_hex(my_value)
-
-# Print the return value
-print("Result value as hex: " + value_as_hex)
-
-# Check the gdb result and quit
-result_is_ok = obj.check_gdb_result(value_as_hex)
-
-if result_is_ok == True:
-    sys.exit(0)
-else:
-    sys.exit(-1)