diff --git a/.github/actions/setup-tebako/action.yml b/.github/actions/setup-tebako/action.yml
index c1e1e080..fefa4197 100644
--- a/.github/actions/setup-tebako/action.yml
+++ b/.github/actions/setup-tebako/action.yml
@@ -65,6 +65,11 @@ inputs:
     required: false
     default:
     type: string
+  xcode:
+    description: XCode version
+    required: false
+    default:
+    type: string
   verbose:
     description: Enable verbose output
     required: false
@@ -96,10 +101,10 @@ runs:
             echo "CC=${{ inputs.cc || 'clang' }}" >> $GITHUB_ENV
             echo "CXX=${{ inputs.cxx || 'clang++' }}" >> $GITHUB_ENV
             if [ "${{ runner.arch }}" = "X64" ]; then
-              echo "XCODE_VERSION=13.1" >> $GITHUB_ENV
+              echo "XCODE_VERSION=${{ inputs.xcode || '13.1' }}" >> $GITHUB_ENV
               echo "TOOLCHAIN=macos-x86_64" >> $GITHUB_ENV
             else
-              echo "XCODE_VERSION=14.3.1" >> $GITHUB_ENV
+              echo "XCODE_VERSION=${{ inputs.xcode || '14.3.1' }}" >> $GITHUB_ENV
               echo "TOOLCHAIN=macos-arm64" >> $GITHUB_ENV
             fi
         elif [[ "$OS" = "MINGW64"* ]]; then
diff --git a/.github/actions/test-set-1/action.yml b/.github/actions/test-set-1/action.yml
index ded02d07..2cb4dedb 100644
--- a/.github/actions/test-set-1/action.yml
+++ b/.github/actions/test-set-1/action.yml
@@ -53,7 +53,7 @@ runs:
         VERBOSE=${{ inputs.verbose }} RUBY_VER=${{ matrix.package_ruby_ver }} tests/scripts/functional-tests.sh
 
     - name: Strip tebako test packages
-      if: ${{ !contains(matrix.os, 'macos') && inputs.upload == 'true' }}
+      if: ${{ !contains(matrix.env.os, 'macos') && inputs.upload == 'true' }}
       shell: bash
       run: strip *-package
 
diff --git a/.github/workflows/gem-test-and-release.yml b/.github/workflows/gem-test-and-release.yml
index 9e443307..f867c4a5 100644
--- a/.github/workflows/gem-test-and-release.yml
+++ b/.github/workflows/gem-test-and-release.yml
@@ -258,7 +258,7 @@ jobs:
         gem: [ metanorma, fontist ]
         package_ruby_ver: [ '3.1.6' ]
         env:
-          - { CC: clang, CXX: clang++ }
+          - { CC: clang-12, CXX: clang++-12 }
     env: ${{ matrix.env }}
     steps:
     - name: Download actions
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 63f0d9e1..a9e94b9b 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -53,12 +53,15 @@ env:
 
 jobs:
   setup:
-    name: setup ${{ matrix.os }} with Ruby ${{ matrix.ruby_ver }}
-    runs-on: ${{ matrix.os }}
+    name: setup ${{ matrix.env.os }} XCode ${{ matrix.env.xcode }} Ruby ${{ matrix.ruby_ver }}
+    runs-on: ${{ matrix.env.os }}
     strategy:
       fail-fast: false
       matrix:
-        os: [ macos-12, macos-14 ]
+        env:
+          - { os: macos-12, xcode: 13.1 }
+          - { os: macos-14, xcode: 14.3.1 }
+          - { os: macos-14, xcode: 15.4 }
         ruby_ver: ['3.1.6', '3.3.3']
     steps:
       - name: Checkout tebako packaging environment
@@ -73,13 +76,14 @@ jobs:
           cache: off
           install: off
           ruby_version: ${{ matrix.ruby_ver }}
+          xcode: ${{ matrix.env.xcode }}
 
       - name: Setup development environment
         uses: ./.github/actions/setup-tebako-development
         with:
           path: deps
-          os: ${{ matrix.os }}
-          cc: ruby-${{ matrix.ruby_ver }}
+          os: ${{ matrix.env.os }}
+          cc: ruby-${{ matrix.ruby_ver }}-XCode-${{ matrix.env.xcode }}
           version: ${{ env.CACHE_VER }}
 
       - name: tebako setup
@@ -88,14 +92,18 @@ jobs:
 
   tests-1:
     needs: setup
-    name: tests-1 ${{ matrix.os }} package Ruby ${{ matrix.package_ruby_ver }} on Ruby ${{ matrix.ruby_ver }}
-    runs-on: ${{ matrix.os }}
+    name: tests-1 package Ruby ${{ matrix.package_ruby_ver }} on ${{ matrix.env.os }}, XCode ${{ matrix.env.xcode }}, Ruby ${{ matrix.ruby_ver }}
+    runs-on: ${{ matrix.env.os }}
     strategy:
       fail-fast: false
       matrix:
-        os: [ macos-12, macos-14 ]
+        env:
+          - { os: macos-12, xcode: 13.1 }
+          - { os: macos-14, xcode: 14.3.1 }
         package_ruby_ver: [ '3.1.6', '3.2.4' ]
-        ruby_ver: ['3.1.6', '3.3.3']
+        ruby_ver: ['3.1.6']
+        include:
+          - { env: { os: macos-14, xcode: 15.4 },  ruby_ver: '3.3.3', package_ruby_ver: '3.2.4' }
     steps:
       - name: Checkout tebako packaging environment
         uses: actions/checkout@v4
@@ -109,25 +117,26 @@ jobs:
           cache: off
           install: off
           ruby_version: ${{ matrix.ruby_ver }}
+          xcode: ${{ matrix.env.xcode }}
           verbose: ${{ env.VERBOSE }}
 
       - name: Setup development environment
         uses: ./.github/actions/setup-tebako-development
         with:
           path: deps
-          os: ${{ matrix.os }}
-          cc: ruby-${{ matrix.ruby_ver }}
+          os: ${{ matrix.env.os }}
+          cc: ruby-${{ matrix.ruby_ver }}-XCode-${{ matrix.env.xcode }}
           version: ${{ env.CACHE_VER }}
 
       - name: Shall upload artifacts?
         id: shall-upload
         run: |
-          if [ "${{ matrix.package_ruby_ver }}" == "3.1.6" ] && [ "${{ matrix.ruby_ver }}" == "3.1.6" ] && [ "${{ matrix.os }}" == "macos-12" ]; then
+          if [ "${{ matrix.package_ruby_ver }}" == "3.1.6" ] && [ "${{ matrix.ruby_ver }}" == "3.1.6" ] && [ "${{ matrix.env.os }}" == "macos-12" ]; then
             echo "upload=true" >> $GITHUB_OUTPUT
           else
             echo "upload=false" >> $GITHUB_OUTPUT
           fi
-            
+
       - name: Run test set 1
         uses: ./.github/actions/test-set-1
         with:
@@ -136,14 +145,19 @@ jobs:
 
   tests-2:
     needs: setup
-    name: tests-2 ${{ matrix.os }} Ruby ${{ matrix.package_ruby_ver }} on Ruby ${{ matrix.ruby_ver }}
-    runs-on: ${{ matrix.os }}
+    name: tests-2 package Ruby ${{ matrix.package_ruby_ver }} on ${{ matrix.env.os }}, XCode ${{ matrix.env.xcode }}, Ruby ${{ matrix.ruby_ver }}
+    runs-on: ${{ matrix.env.os }}
     strategy:
       fail-fast: false
       matrix:
-        os: [ macos-12, macos-14 ]
+        env:
+          - { os: macos-12, xcode: 13.1 }
+          - { os: macos-14, xcode: 14.3.1 }
         package_ruby_ver: [ '3.1.6', '3.2.4' ]
-        ruby_ver: ['3.1.6', '3.3.3']
+        ruby_ver: ['3.1.6']
+        include:
+          - { env: { os: macos-14, xcode: 15.4 },  ruby_ver: '3.3.3', package_ruby_ver: '3.2.4' }
+
     steps:
       - name: Checkout tebako packaging environment
         uses: actions/checkout@v4
@@ -157,13 +171,14 @@ jobs:
           cache: off
           install: off
           ruby_version: ${{ matrix.ruby_ver }}
+          xcode: ${{ matrix.env.xcode }}
 
       - name: Setup development environment
         uses: ./.github/actions/setup-tebako-development
         with:
           path: deps
-          os: ${{ matrix.os }}-ruby-${{ matrix.ruby_ver }}
-          cc: ruby-${{ matrix.ruby_ver }}
+          os: ${{ matrix.env.os }}-ruby-${{ matrix.ruby_ver }}
+          cc: ruby-${{ matrix.ruby_ver }}-XCode-${{ matrix.env.xcode }}
           version: ${{ env.CACHE_VER }}
 
       - name: Run tebako tests (set no. 2)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 37b114f0..f3c05980 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -211,7 +211,7 @@ if(DWARFS_PRELOAD)
   list(GET LIBDWARFS_WR_VER_COMPONENTS 2 LIBDWARFS_WR_VER_PATCH)
   set (LIBDWARFS_WR_VER_M ${LIBDWARFS_WR_VER_MAJOR}.${LIBDWARFS_WR_VER_MINOR}.${LIBDWARFS_WR_VER_PATCH})
 else(DWARFS_PRELOAD)
-  def_ext_prj_g(DWARFS_WR "v0.5.3")
+  def_ext_prj_g(DWARFS_WR "v0.5.4")
 endif(DWARFS_PRELOAD)
 
 set(LIBYAML_RUBY_OPTION "")
diff --git a/common.env b/common.env
index 2aa8ad59..8bed653a 100644
--- a/common.env
+++ b/common.env
@@ -1,5 +1,5 @@
 BUILD_TYPE=Release
 DEPS=deps
 INCBIN_TAG=348e36b
-DWARFS_WR_TAG=v0.5.3
+DWARFS_WR_TAG=v0.5.4
 RUBY_VER=3.1.6
diff --git a/lib/tebako/version.rb b/lib/tebako/version.rb
index 7eb9947f..b3fc9f16 100644
--- a/lib/tebako/version.rb
+++ b/lib/tebako/version.rb
@@ -26,5 +26,5 @@
 # POSSIBILITY OF SUCH DAMAGE.
 
 module Tebako
-  VERSION = "0.7.2"
+  VERSION = "0.7.3"
 end
diff --git a/tools b/tools
index 56453681..62ddb501 160000
--- a/tools
+++ b/tools
@@ -1 +1 @@
-Subproject commit 564536816275818de0a1e910cc541217296d0d17
+Subproject commit 62ddb501985679a60b5643fc9da25fedd6a94f77