diff --git a/.github/actions/build/action.yml b/.github/actions/build/action.yml
index 3b195073c..52aece5be 100644
--- a/.github/actions/build/action.yml
+++ b/.github/actions/build/action.yml
@@ -7,7 +7,7 @@ runs:
   using: "composite"
   steps:
     # Cache pip & platformio
-    - uses: actions/cache@v3
+    - uses: actions/cache@v4
       with:
         path: |
           ~/.cache/pip
@@ -18,7 +18,7 @@ runs:
         pip install --upgrade platformio
       shell: bash
     # Install sonar-scanner and build-wrapper
-    - uses: SonarSource/sonarcloud-github-c-cpp@v2
+    - uses: SonarSource/sonarcloud-github-c-cpp@v3
     # Build for Arduino UNO
     - run: |
         build-wrapper-linux-x86-64 --out-dir ${{ inputs.BUILD_WRAPPER_OUT_DIR }} platformio run --environment uno
diff --git a/.github/workflows/archive_build.yml b/.github/workflows/archive_build.yml
index 1e9a4a3f8..4276aa7c6 100644
--- a/.github/workflows/archive_build.yml
+++ b/.github/workflows/archive_build.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo and submodules
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: recursive
           fetch-depth: 0
@@ -14,7 +14,7 @@ jobs:
         with:
           BUILD_WRAPPER_OUT_DIR: build_wrapper_out_dir
       - name: Archive build
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{format('{0}-{1}',github.sha,github.run_number)}}
           path: build/*.hex
diff --git a/.github/workflows/create_release.yml b/.github/workflows/create_release.yml
index 7a24be4f8..40364f6de 100644
--- a/.github/workflows/create_release.yml
+++ b/.github/workflows/create_release.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo and submodules
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: recursive
           fetch-depth: 0
@@ -24,15 +24,15 @@ jobs:
           tag: ${{ github.ref_name }}
           name: Release ${{ github.ref_name }}
           commit: ${{ github.sha }}
-          body: "" # release message, alternative to body_path
-          # body_path: release_text.md  # uncomment if not used
+          # Avoid overwriting body that may have been manually edited
+          omitBodyDuringUpdate: true
           draft: ${{ startsWith(github.ref_name,'test')}}
           prerelease: false
           allowUpdates: true
           artifacts: build/*.hex
           replacesArtifacts: true
       - name: Deploy source code documentation to pages
-        uses: DenverCoder1/doxygen-github-pages-action@v1.3.0
+        uses: DenverCoder1/doxygen-github-pages-action@v1.3.1
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           branch: gh-pages
diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index 46ff8cbdf..d90175b59 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -11,7 +11,7 @@ jobs:
     if: ${{!github.event.pull_request.draft}}
     steps:
       - name: Checkout repo and submodules
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: recursive
           fetch-depth: 0
@@ -20,7 +20,7 @@ jobs:
         with:
           BUILD_WRAPPER_OUT_DIR: build_wrapper_out_dir
       - name: Cache test setup
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             ./test/build
diff --git a/.gitignore b/.gitignore
index 4fbf21afe..5eb661208 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,12 +1,15 @@
-build*
-.dep/
-*.o
-*.hex
-*.a
-.*/*
-!.github/
-*.pu
-html
-*.swp
-
-src/ayab/version.h
+# PlatformIO
+/.pio/
+
+# IDEs
+/.vscode/
+/.idea/
+
+# CMake
+/test/build/
+
+# Doxygen
+/doc/docs/
+
+# Autogenerated version file
+/src/ayab/version.h
\ No newline at end of file