diff --git a/.github/workflows/ci-test.yml b/.github/workflows/ci-test.yml
index 6c07844..69f4045 100644
--- a/.github/workflows/ci-test.yml
+++ b/.github/workflows/ci-test.yml
@@ -13,6 +13,8 @@ jobs:
   unit-tests:
     name: "Build ${{ matrix.build_type }} with ${{ matrix.compiler }}"
     runs-on: ubuntu-latest
+    env:
+      CALF_LOG_DIR: ${{ github.workspace }}/capiocl_logs
     strategy:
       fail-fast: false
       matrix:
@@ -63,11 +65,28 @@ jobs:
         shell: bash
         run: CAPIO_CL_tests --gtest_break_on_failure --gtest_print_time=1
 
+      - name: Zip logs
+        if: always()
+        run: |
+          if [ -d "capiocl_logs" ]; then
+            cmake -E tar cf capiocl_logs.zip --format=zip capiocl_logs
+          fi
+
+      - name: Upload logs artifact
+        if: always()
+        uses: actions/upload-artifact@v7
+        with:
+          name: capiocl-logs-${{ matrix.build_type }}-${{ strategy.job-index }}
+          path: capiocl_logs.zip
+          retention-days: 1
+          if-no-files-found: ignore
 
   upload-to-codecov:
     name: "compute Codecov"
     needs: [ "unit-tests"]
     runs-on: ubuntu-latest
+    env:
+      CALF_LOG_DIR: ${{ github.workspace }}/capiocl_logs
     steps:
       - uses: actions/checkout@v7
 
@@ -96,6 +115,22 @@ jobs:
         shell: bash
         run: CAPIO_CL_tests --gtest_break_on_failure --gtest_print_time=1
 
+      - name: Zip logs
+        if: always()
+        run: |
+          if [ -d "capiocl_logs" ]; then
+            cmake -E tar cf capiocl_logs.zip --format=zip capiocl_logs
+          fi
+
+      - name: Upload logs artifact
+        if: always()
+        uses: actions/upload-artifact@v7
+        with:
+          name: capiocl-logs-coverage
+          path: capiocl_logs.zip
+          retention-days: 1
+          if-no-files-found: ignore
+
       - name: "Generate coverage report"
         run: |
           pip install --upgrade gcovr
@@ -170,4 +205,4 @@ jobs:
         with:
           source: ${{matrix.path}}
           extensions: 'h,cpp,c'
-          clangFormatVersion: 20
\ No newline at end of file
+          clangFormatVersion: 20
diff --git a/.github/workflows/python-bindings.yml b/.github/workflows/python-bindings.yml
index 66b7c10..bd335f0 100644
--- a/.github/workflows/python-bindings.yml
+++ b/.github/workflows/python-bindings.yml
@@ -20,6 +20,7 @@ jobs:
     runs-on: ${{ matrix.on }}
     env:
       INSTALL_PREFIX: "/usr/local"
+      CALF_LOG_DIR: ${{ github.workspace }}/capiocl_logs
 
     steps:
       - name: "Checkout repository"
@@ -68,6 +69,22 @@ jobs:
         run: |
           pytest -k "not test_home_node" -v tests/python/test_*
 
+      - name: "Zip CALF logs"
+        if: always()
+        run: |
+          if [ -d "capiocl_logs" ]; then
+            cmake -E tar cf capiocl_logs.zip --format=zip capiocl_logs
+          fi
+
+      - name: "Upload CALF logs"
+        if: always()
+        uses: actions/upload-artifact@v7
+        with:
+          name: ${{ format('capiocl-logs-{0}-{1}', matrix.on, matrix.python) }}
+          path: capiocl_logs.zip
+          retention-days: 1
+          if-no-files-found: ignore
+
 
       - name: "Generate coverage report"
         if: ${{ startsWith(matrix.on, 'ubuntu-') }}
diff --git a/CMakeLists.txt b/CMakeLists.txt
index efca4b8..ac6a366 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -60,9 +60,11 @@ FetchContent_Declare(
 FetchContent_Declare(
         calf
         GIT_REPOSITORY https://github.com/High-Performance-IO/calf.git
-        GIT_TAG v0.1.1
+        GIT_TAG v0.2.0
 )
 
+set(CALF_PROTOBUF ON CACHE BOOL "" FORCE)
+
 # JSONCONS build flags
 set(JSONCONS_BUILD_TESTS OFF CACHE BOOL "" FORCE)
 set(JSONCONS_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
@@ -161,6 +163,7 @@ endif ()
 calf_enable_log(libcapio_cl $<IF:$<CONFIG:Debug>,ON,OFF>)
 calf_set_component(libcapio_cl "capiocl")
 calf_set_default_log_dir(libcapio_cl "./capiocl_logs")
+target_link_libraries(libcapio_cl PRIVATE calf::protobuf)
 target_include_directories(libcapio_cl PRIVATE ${CALF_SOURCE_DIR})
 
 #####################################