diff --git a/.github/workflows/csharp.yml b/.github/workflows/csharp.yml
index 0546a88073..71c9392dd6 100644
--- a/.github/workflows/csharp.yml
+++ b/.github/workflows/csharp.yml
@@ -58,7 +58,7 @@ jobs:
         with:
           dotnet-version: ${{ matrix.dotnet }}
       - name: Checkout ADBC
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
           submodules: recursive
diff --git a/.github/workflows/dev.yml b/.github/workflows/dev.yml
index b192fe8d0b..7684e1d9c7 100644
--- a/.github/workflows/dev.yml
+++ b/.github/workflows/dev.yml
@@ -38,7 +38,7 @@ jobs:
     name: "pre-commit"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/dev_adbc.yml b/.github/workflows/dev_adbc.yml
index 8b94610afc..8159cc69ff 100644
--- a/.github/workflows/dev_adbc.yml
+++ b/.github/workflows/dev_adbc.yml
@@ -45,7 +45,7 @@ jobs:
     name: "pre-commit"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/dev_pr.yml b/.github/workflows/dev_pr.yml
index 51f3b8457d..bb297f67b7 100644
--- a/.github/workflows/dev_pr.yml
+++ b/.github/workflows/dev_pr.yml
@@ -41,7 +41,7 @@ jobs:
     name: Process
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           persist-credentials: false
 
@@ -52,7 +52,7 @@ jobs:
         run: |
           ./.github/workflows/dev_pr/milestone.sh "${GITHUB_REPOSITORY}" ${{github.event.number}}
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           path: pr_checkout
diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index 01c508647d..6c248ceb85 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -57,7 +57,7 @@ jobs:
     name: "DuckDB Integration Tests"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -104,7 +104,7 @@ jobs:
     name: "FlightSQL Integration Tests (Dremio and SQLite)"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -176,7 +176,7 @@ jobs:
     name: "PostgreSQL Integration Tests"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -273,7 +273,7 @@ jobs:
     name: "Snowflake Integration Tests"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -330,7 +330,7 @@ jobs:
     name: "FlightSQL C# Interop"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/java.yml b/.github/workflows/java.yml
index 3cae486ed6..8a9c533665 100644
--- a/.github/workflows/java.yml
+++ b/.github/workflows/java.yml
@@ -50,7 +50,7 @@ jobs:
       matrix:
         java: ['11', '17', '21', '25']
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -76,7 +76,7 @@ jobs:
       matrix:
         java: ['21', '25']
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -116,7 +116,7 @@ jobs:
     env:
       VCPKG_ROOT: "${{ github.workspace }}/vcpkg"
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -204,7 +204,7 @@ jobs:
           - { java: '11', os: macOS, arch: arm64v8, vcpkg_arch: arm64, runner: macos-latest }
           - { java: '25', os: macOS, arch: arm64v8, vcpkg_arch: arm64, runner: macos-latest }
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/native-unix.yml b/.github/workflows/native-unix.yml
index 72e3f10aa6..f8c2764529 100644
--- a/.github/workflows/native-unix.yml
+++ b/.github/workflows/native-unix.yml
@@ -81,7 +81,7 @@ jobs:
       # https://conda-forge.org/docs/maintainer/knowledge_base.html#newer-c-features-with-old-sdk
       CXXFLAGS: "-D_LIBCPP_DISABLE_AVAILABILITY"
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -162,7 +162,7 @@ jobs:
       # https://conda-forge.org/docs/maintainer/knowledge_base.html#newer-c-features-with-old-sdk
       CXXFLAGS: "-D_LIBCPP_DISABLE_AVAILABILITY"
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -219,7 +219,7 @@ jobs:
       matrix:
         os: ["ubuntu-latest"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -282,7 +282,7 @@ jobs:
     name: "clang-tidy"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -328,7 +328,7 @@ jobs:
       # https://conda-forge.org/docs/maintainer/knowledge_base.html#newer-c-features-with-old-sdk
       CXXFLAGS: "-D_LIBCPP_DISABLE_AVAILABILITY"
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -400,7 +400,7 @@ jobs:
       contents: 'read'
       id-token: 'write'
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -454,7 +454,7 @@ jobs:
       contents: 'read'
       id-token: 'write'
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -534,7 +534,7 @@ jobs:
       # https://conda-forge.org/docs/maintainer/knowledge_base.html#newer-c-features-with-old-sdk
       CXXFLAGS: "-D_LIBCPP_DISABLE_AVAILABILITY"
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -654,7 +654,7 @@ jobs:
         os: ["ubuntu-latest"]
         python: ["3.14"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/native-windows.yml b/.github/workflows/native-windows.yml
index c710d2b6ff..6852922523 100644
--- a/.github/workflows/native-windows.yml
+++ b/.github/workflows/native-windows.yml
@@ -64,7 +64,7 @@ jobs:
       matrix:
         os: ["windows-latest"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -120,7 +120,7 @@ jobs:
       matrix:
         os: ["windows-latest"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -188,7 +188,7 @@ jobs:
       matrix:
         os: ["windows-latest"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -256,7 +256,7 @@ jobs:
         os: ["windows-latest"]
         python: ["3.10", "3.14"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/nightly-verify.yml b/.github/workflows/nightly-verify.yml
index 392171fd35..fdbd4b629f 100644
--- a/.github/workflows/nightly-verify.yml
+++ b/.github/workflows/nightly-verify.yml
@@ -49,7 +49,7 @@ jobs:
     if: github.event_name != 'schedule' || github.repository == 'apache/arrow-adbc'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -118,7 +118,7 @@ jobs:
       matrix:
         os: ["macos-15-intel", "macos-latest", "ubuntu-latest", "windows-latest"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           path: arrow-adbc
@@ -188,7 +188,7 @@ jobs:
     name: "Run Docker Tests"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           path: arrow-adbc
@@ -234,7 +234,7 @@ jobs:
           - os: ubuntu
             version: "24.04"
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           path: arrow-adbc
diff --git a/.github/workflows/nightly-website.yml b/.github/workflows/nightly-website.yml
index c9e2a75073..9fa1ff6fd3 100644
--- a/.github/workflows/nightly-website.yml
+++ b/.github/workflows/nightly-website.yml
@@ -41,7 +41,7 @@ jobs:
     name: "Build Website"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -61,14 +61,14 @@ jobs:
     runs-on: ubuntu-latest
     needs: [build]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           path: site
           # NOTE: needed to push at the end
           persist-credentials: true
           ref: asf-site
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           path: scripts
diff --git a/.github/workflows/packaging.yml b/.github/workflows/packaging.yml
index b51bd4c05c..2c28969245 100644
--- a/.github/workflows/packaging.yml
+++ b/.github/workflows/packaging.yml
@@ -63,7 +63,7 @@ jobs:
     # For cron: only run on the main repo, not forks
     if: github.event_name != 'schedule' || github.repository == 'apache/arrow-adbc'
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -381,7 +381,7 @@ jobs:
         with:
           name: source
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           repository: apache/arrow
           path: arrow
@@ -1158,7 +1158,7 @@ jobs:
       run:
         shell: bash -l -eo pipefail {0}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: true
@@ -1197,7 +1197,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.ref_name == 'main' && (github.event.schedule || inputs.upload_artifacts)
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install Python
         uses: actions/setup-python@v6
         with:
@@ -1221,7 +1221,7 @@ jobs:
       - python-windows
       - python-sdist
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: true
diff --git a/.github/workflows/r-check.yml b/.github/workflows/r-check.yml
index 29a87de4f0..d63bc1c6ff 100644
--- a/.github/workflows/r-check.yml
+++ b/.github/workflows/r-check.yml
@@ -44,7 +44,7 @@ jobs:
     runs-on: ${{ inputs.os }}-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Get required Go version
         run: |
           (. .env && echo "GO_VERSION=${GO}") >> $GITHUB_ENV
diff --git a/.github/workflows/r-extended.yml b/.github/workflows/r-extended.yml
index 4471ce691c..36909a17ff 100644
--- a/.github/workflows/r-extended.yml
+++ b/.github/workflows/r-extended.yml
@@ -122,7 +122,7 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: r-lib/actions/setup-r@6f6e5bc62fba3a704f74e7ad7ef7676c5c6a2590  # v2
         with:
           rversion: ${{ matrix.rversion }}
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index ab1942b43d..b038c90cae 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -63,7 +63,7 @@ jobs:
       CARGO_INCREMENTAL: 0
       RUSTFLAGS: "-Adead_code" # TODO(alexandreyc): remove this line when implementation is complete
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index 4dc4aefecb..7b15914abe 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -52,7 +52,7 @@ jobs:
       matrix:
         os: ["macos-15-intel", "macos-latest", "ubuntu-latest"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -82,7 +82,7 @@ jobs:
       matrix:
         os: ["macos-15-intel", "macos-latest", "ubuntu-latest", "windows-latest"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false