diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
new file mode 100644
index 0000000..8bb89f6
--- /dev/null
+++ b/.github/workflows/build-test.yml
@@ -0,0 +1,176 @@
+name: Build and ctest and recon_test_pack CI
+
+on:
+  push:
+    branches: 
+      - master
+    paths-ignore:
+      - '.appveyor.yml'
+      - 'CITATION.cff'
+      - '**/*.md'
+      - '**/*.html'
+      - '**/*.htm'
+      - '**/*.tex'
+
+  pull_request:
+    branches:
+      - master
+    paths-ignore:
+      - '.appveyor.yml'
+      - 'CITATION.cff'
+      - '**/*.md'
+      - '**/*.html'
+      - '**/*.htm'
+      - '**/*.tex'
+
+jobs:
+  build:
+
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        include:
+        - os: ubuntu-latest
+          compiler: gcc
+          compiler_version: 9
+          BUILD_TYPE: "Release"
+        - os: ubuntu-latest
+          compiler: gcc
+          compiler_version: 9
+          BUILD_TYPE: "Debug"
+        - os: ubuntu-latest
+          compiler: gcc
+          compiler_version: 13
+          BUILD_TYPE: "Release"
+        - os: ubuntu-latest
+          compiler: clang
+          BUILD_TYPE: "Release"
+
+      # let's run all of them, as opposed to aborting when one fails
+      fail-fast: false
+
+    name: ${{ matrix.os }}-${{ matrix.compiler }}${{ matrix.compiler_version }}-${{ matrix.BUILD_TYPE }}
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: recursive
+
+    - name: set_compiler_variables
+      shell: bash
+      run: |
+          set -ex
+          if test 'XX${{ matrix.compiler }}' = 'XXclang'; then
+            CC="clang"
+            CXX="clang++"
+          elif test 'XX${{ matrix.compiler }}' = 'XXgcc'; then
+            CC="gcc"
+            CXX="g++"
+          fi
+          if test 'XX${{ matrix.compiler_version }}' != 'XX'; then
+            CC=${CC}-${{ matrix.compiler_version }}
+            CXX=${CXX}-${{ matrix.compiler_version }}            
+          fi
+          if test 'XX${{ matrix.os }}' = 'XXmacOS-latest'; then
+            if test 'XX${{ matrix.compiler }}' = 'XXclang'; then
+              brew install llvm@${{ matrix.compiler_version }}
+              if test XX${HOMEBREW_PREFIX} = XX; then
+                HOMEBREW_PREFIX=/usr/local
+              fi
+              LDFLAGS="-L$HOMEBREW_PREFIX/opt/llvm/lib/c++ -Wl,-rpath,$HOMEBREW_PREFIX/opt/llvm/lib/c++"
+              # make available to jobs below
+              echo LDFLAGS="$LDFLAGS" >> $GITHUB_ENV
+              CC="$HOMEBREW_PREFIX/opt/llvm/bin/clang"
+              CXX="$HOMEBREW_PREFIX/opt/llvm/bin/clang++"
+            fi
+          fi
+          export CC CXX
+          # make available to jobs below
+          echo CC="$CC" >> $GITHUB_ENV
+          echo CXX="$CXX" >> $GITHUB_ENV
+
+    - name: install_dependencies
+      shell: bash
+      run: |
+          set -ex
+          # We will install some external dependencies here
+          CMAKE_INSTALL_PREFIX=${GITHUB_WORKSPACE}/install
+          case ${{matrix.os}} in
+            (ubuntu*)
+              sudo apt update
+              # install compiler
+              if test 'XX${{ matrix.compiler }}' = 'XXclang'; then
+                  # package is called clang, need libomp-dev for OpenMP support
+                  sudo apt install $CC libomp-dev
+              else
+                  sudo apt install $CXX
+              fi
+              # other dependencies
+              sudo apt install libinsighttoolkit5-dev
+            (macOS*)
+              brew install itk
+              ;;
+          esac
+          echo PYTHON_EXECUTABLE="$PYTHON_EXECUTABLE" >> $GITHUB_ENV
+
+    - name: ccache
+      uses: hendrikmuhs/ccache-action@v1
+      with:
+        key: ${{ matrix.os }}-${{ matrix.compiler }}${{ matrix.compiler_version }}-${{ matrix.BUILD_TYPE }}
+
+    - name: configure
+      shell: bash
+      env:
+          BUILD_TYPE: ${{ matrix.BUILD_TYPE }}
+          BUILD_FLAGS: ${{ matrix.BUILD_FLAGS }}
+      run: |
+          set -ex
+          cmake --version
+          if test "XX$CC" != "XX"; then
+              $CC --version
+              $CXX --version
+          fi
+          CMAKE_INSTALL_PREFIX=${GITHUB_WORKSPACE}/install
+          # make available to jobs below
+          echo CMAKE_INSTALL_PREFIX="$CMAKE_INSTALL_PREFIX" >> $GITHUB_ENV
+          EXTRA_BUILD_FLAGS="-DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX} -DCMAKE_BUILD_TYPE=${BUILD_TYPE}"
+          echo "cmake flags $BUILD_FLAGS $EXTRA_BUILD_FLAGS"          
+          mkdir build
+          cd build
+          cmake -S .. ${BUILD_FLAGS} ${EXTRA_BUILD_FLAGS}
+
+    - name: build
+      shell: bash
+      env:
+          BUILD_TYPE: ${{ matrix.BUILD_TYPE }}
+      run: |
+          cd ${GITHUB_WORKSPACE}/build;
+          cmake --build . -j 2 --config ${BUILD_TYPE}} --target install
+
+    - name: ctest
+      shell: bash
+      env:
+          BUILD_TYPE: ${{ matrix.BUILD_TYPE }}
+      run: |
+          set -vx
+          cd ${GITHUB_WORKSPACE}/build
+          ctest --output-on-failure -C ${BUILD_TYPE}
+
+    - name: Upload ctest log files for debugging
+      uses: actions/upload-artifact@v4
+      if: failure()
+      with:
+        name: ctest_log_files-${{ matrix.os }}-${{ matrix.compiler }}${{ matrix.compiler_version }}-${{ matrix.BUILD_TYPE }}
+        path: |
+          ${{ github.workspace }}/build/**/*.log
+        retention-days: 7
+
+    - name: CPack
+      shell: bash
+      env:
+          BUILD_TYPE: ${{ matrix.BUILD_TYPE }}
+      run: |
+          set -vx
+          cd ${GITHUB_WORKSPACE}/build
+          cpack
+      
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 11bf116..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,48 +0,0 @@
-language: cpp
-addons:
-  apt:
-    packages:
-    - cmake
-    sources:
-    - kalakris-cmake
-matrix:
-  include:
-  - os: osx
-    compiler: clang
-    env: ITK_VERSION=v5.2.0
-  - os: linux
-    compiler: gcc
-    env: ITK_VERSION=v5.2.0
-cache:
-- directories:
-  - $HOME/itk-v5.2.0-build
-  - $HOME/itk-v5.2.0
-before_script:
-- export NUM_THREADS=4
-- export ITK_SOURCE_DIR=$HOME/itk-${ITK_VERSION}
-- export ITK_BUILD_DIR=${ITK_SOURCE_DIR}-build
-- if ! test -e ${ITK_SOURCE_DIR}/CMakeLists.txt; then rm -fr $ITK_SOURCE_DIR; fi
-- if ! test -d ${ITK_SOURCE_DIR}; then git clone --branch ${ITK_VERSION} https://github.com/InsightSoftwareConsortium/ITK.git
-  ${ITK_SOURCE_DIR}; fi
-- if ! test -d ${ITK_BUILD_DIR}; then mkdir ${ITK_BUILD_DIR}; fi
-- cd ${ITK_BUILD_DIR}
-- cmake ${ITK_SOURCE_DIR} -DCMAKE_BUILD_TYPE=Release -DBUILD_EXAMPLES=OFF -DBUILD_TESTING=OFF
-  -DModule_ITKReview=ON
-- make --jobs=$NUM_THREADS --keep-going
-- cd -
-- cd ..
-- mkdir build
-- cd build
-- cmake ../PETPVC -DCMAKE_BUILD_TYPE=Release
-script: cmake --build . && ctest && cpack
-deploy:
-  - provider: releases
-    api_key:
-      secure: "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"
-    file: "*.tar.gz"
-    file_glob: true
-    draft: true
-    skip_cleanup: true
-    on:
-      tags: true
-      all_branches: true
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1c34d3c..c432410 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,7 +28,7 @@ endif()
 
 SET(VERSION_MAJOR 1)
 SET(VERSION_MINOR 2)
-SET(VERSION_PATCH 11)
+SET(VERSION_PATCH 12)
 
 MAKE_DIRECTORY(${PROJECT_BINARY_DIR}/config)
 
diff --git a/README.md b/README.md
index 58aac4b..82abf4b 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # PETPVC 
-[![Build Status](https://travis-ci.org/UCL/PETPVC.svg?branch=master)](https://travis-ci.org/UCL/PETPVC) [![Build Status](https://dev.azure.com/petpvc/petpvc/_apis/build/status/UCL.PETPVC?branchName=master)](https://dev.azure.com/petpvc/petpvc/_build/latest?definitionId=1&branchName=master) [![Build status](https://ci.appveyor.com/api/projects/status/7kk9ua9r0lybinwa/branch/master?svg=true)](https://ci.appveyor.com/project/bathomas/petpvc/branch/master) [![Codacy Badge](https://api.codacy.com/project/badge/Grade/ab83c41f20194c2c82fbc74e8788f928)](https://www.codacy.com/app/bathomas/PETPVC?utm_source=github.com&utm_medium=referral&utm_content=UCL/PETPVC&utm_campaign=badger) [![DOI](https://zenodo.org/badge/17082200.svg)](https://zenodo.org/badge/latestdoi/17082200)
+[![Build Status](https://dev.azure.com/petpvc/petpvc/_apis/build/status/UCL.PETPVC?branchName=master)](https://dev.azure.com/petpvc/petpvc/_build/latest?definitionId=1&branchName=master) [![Build status](https://ci.appveyor.com/api/projects/status/7kk9ua9r0lybinwa/branch/master?svg=true)](https://ci.appveyor.com/project/bathomas/petpvc/branch/master) [![Codacy Badge](https://api.codacy.com/project/badge/Grade/ab83c41f20194c2c82fbc74e8788f928)](https://www.codacy.com/app/bathomas/PETPVC?utm_source=github.com&utm_medium=referral&utm_content=UCL/PETPVC&utm_campaign=badger) [![DOI](https://zenodo.org/badge/17082200.svg)](https://zenodo.org/badge/latestdoi/17082200)
 
 PETPVC: toolbox for partial volume correction (PVC) in positron emission tomography (PET)