diff --git a/.github/workflows/build_release_template.yml b/.github/workflows/build_release_template.yml
index 2b0ad631..8453fa9b 100644
--- a/.github/workflows/build_release_template.yml
+++ b/.github/workflows/build_release_template.yml
@@ -51,21 +51,21 @@ jobs:
     steps:
       # Clone all required repos
       - name: Clone dmd
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: 'dlang/dmd'
           ref: ${{ inputs.release_branch }}
           path: 'dmd'
 
       - name: Clone phobos
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: 'dlang/phobos'
           ref: ${{ inputs.release_branch }}
           path: 'phobos'
 
       - name: Clone dlang.org
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: 'dlang/dlang.org'
           ref: ${{ inputs.release_branch }}
@@ -93,7 +93,7 @@ jobs:
 
       # Save the generated documentation for the target-specific builds
       - name: Upload generated docs as a temporary artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: dmd-documentation
           path: dlang.org/web
@@ -192,7 +192,7 @@ jobs:
       # Clone dlang/installer which provides the actual build scripts
       #
       - name: Clone installer repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: ${{ inputs.installer_repo }}
           ref: ${{ inputs.installer_branch }}
@@ -201,7 +201,7 @@ jobs:
       # Load the generated documentation in the create_dmd_release folder
       #
       - name: Download docs generated by the previous job
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: dmd-documentation
           path: create_dmd_release/docs
@@ -306,7 +306,7 @@ jobs:
       # job(s) have access to all generated releases
       #
       - name: Upload generated release as a temporary artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: dmd-release
           path: |
diff --git a/.github/workflows/build_windows.yml b/.github/workflows/build_windows.yml
index 01eac6c0..d0531448 100644
--- a/.github/workflows/build_windows.yml
+++ b/.github/workflows/build_windows.yml
@@ -22,12 +22,12 @@ jobs:
       LLVM_VER: 9.0.0
       ARCH: ${{ matrix.arch }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 1
       - shell: cmd
         run: call windows\build_lld.bat || exit /b
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: lld-${{ matrix.arch }}
           path: artifacts/
@@ -42,12 +42,12 @@ jobs:
       MINGW_VER: 8.0.0
       D_VERSION: 2.077.1
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 1
       - shell: cmd
         run: call windows\build_mingw.bat || exit /b
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: mingw-libs
           path: artifacts/
@@ -63,12 +63,12 @@ jobs:
       ZLIB_VER: 1.2.11
       PEXPORTS_VER: 0.47
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 1
       - shell: cmd
         run: call windows\build_curl.bat || exit /b
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: curl
           path: artifacts/
@@ -78,7 +78,7 @@ jobs:
     runs-on: ubuntu-20.04
     timeout-minutes: 120
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 1
       - name: Clone repos
@@ -94,7 +94,7 @@ jobs:
           set -eux
           mkdir -p work/docs
           zip -r work/docs/docs.zip work/dlang.org/web
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: docs
           path: work/docs
@@ -108,11 +108,11 @@ jobs:
       LDC_VSDIR: C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\
       HOST_LDC_VERSION: 1.23.0
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 1
       - name: Download docs artifact
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: docs
           path: docs/
@@ -162,7 +162,7 @@ jobs:
           cd .. || exit /b
           mkdir artifacts || exit /b
           copy windows\*.exe artifacts || exit /b
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: win_release
           path: artifacts/
diff --git a/.github/workflows/test_release.yml b/.github/workflows/test_release.yml
index da83e100..3d976a83 100644
--- a/.github/workflows/test_release.yml
+++ b/.github/workflows/test_release.yml
@@ -51,12 +51,12 @@ jobs:
     steps:
       - name: Download generated releases from the artifacts
         id: download-release
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: dmd-release
 
       - name: Clone installer repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: installer