diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
index 8bb89f6..e4540d0 100644
--- a/.github/workflows/build-test.yml
+++ b/.github/workflows/build-test.yml
@@ -1,11 +1,12 @@
-name: Build and ctest and recon_test_pack CI
+name: Build and ctest CI
 
 on:
   push:
     branches: 
       - master
     paths-ignore:
-      - '.appveyor.yml'
+      - 'appveyor.yml'
+      - 'azure-pipelines.yml'
       - 'CITATION.cff'
       - '**/*.md'
       - '**/*.html'
@@ -16,7 +17,8 @@ on:
     branches:
       - master
     paths-ignore:
-      - '.appveyor.yml'
+      - 'appveyor.yml'
+      - 'azure-pipelines.yml'
       - 'CITATION.cff'
       - '**/*.md'
       - '**/*.html'
@@ -40,7 +42,7 @@ jobs:
           BUILD_TYPE: "Debug"
         - os: ubuntu-latest
           compiler: gcc
-          compiler_version: 13
+          compiler_version: 12
           BUILD_TYPE: "Release"
         - os: ubuntu-latest
           compiler: clang
@@ -106,7 +108,9 @@ jobs:
                   sudo apt install $CXX
               fi
               # other dependencies
-              sudo apt install libinsighttoolkit5-dev
+              # note: v5 is distributed without the REVIEW module
+              sudo apt install libinsighttoolkit4-dev
+              ;;
             (macOS*)
               brew install itk
               ;;
@@ -173,4 +177,12 @@ jobs:
           set -vx
           cd ${GITHUB_WORKSPACE}/build
           cpack
-      
\ No newline at end of file
+          # outputs PETPVC-1.*.*.sh, .tar.gz and .tar.Z
+
+    - name: Upload cpack output
+      uses: actions/upload-artifact@v4
+      with:
+        name: cpack_files-${{ matrix.os }}-${{ matrix.compiler }}${{ matrix.compiler_version }}-${{ matrix.BUILD_TYPE }}
+        path: |
+          ${{ github.workspace }}/build/PETPVC-*.*.*.*
+        retention-days: 10
diff --git a/CITATION.cff b/CITATION.cff
new file mode 100644
index 0000000..5802889
--- /dev/null
+++ b/CITATION.cff
@@ -0,0 +1,26 @@
+cff-version: 1.2.0
+title: PETPVC PET Partial Volume Correction
+message: >-
+  If you use this software, please cite it using the
+  metadata from this file.
+type: software
+authors:
+    - family-names: Thomas
+      given-names:  Benjamin
+      orcid:        'https://orcid.org/0000-0002-9784-1177'
+      affiliation:  University College London
+    - family-names: Thielemans
+      given-names:  Kris
+      orcid:        'https://orcid.org/0000-0002-5514-199X'
+      affiliation:   University College London
+identifiers:
+    - type: doi
+      value: 10.1088/0031-9155/61/22/7975
+repository-code: 'https://github.com/UCL/PETPVC'
+keywords:
+  - pet
+  - spect
+  - medical imaging
+  - partial volume correction
+  - open-source software
+license: Apache-2.0
diff --git a/README.md b/README.md
index 82abf4b..84f1257 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # 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 and ctest and recon_test_pack CI](https://github.com/UCL/PETPVC/actions/workflows/build-test.yml/badge.svg)](https://github.com/UCL/PETPVC/actions/workflows/build-test.yml)[![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)
 
diff --git a/appveyor.yml b/appveyor.yml
index 74cb670..d68c686 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,3 +1,13 @@
+skip_commits:
+  files:
+    - .github/**/*
+    - 'azure-pipelines.yml'
+    - 'CITATION.cff'
+    - '**/*.md'
+    - '**/*.html'
+    - '**/*.htm'
+    - '**/*.tex'
+
 # version format
 version: "{build}"