diff --git a/coin/platform_configs/cmake_platforms.yaml b/coin/platform_configs/cmake_platforms.yaml
index c0fac95b..cef8ebe6 100644
--- a/coin/platform_configs/cmake_platforms.yaml
+++ b/coin/platform_configs/cmake_platforms.yaml
@@ -195,7 +195,7 @@ Configurations:
         'Path=C:\llvm-mingw\bin;{{.Env.Path}}',
         'CMAKE_ARGS=-DOPENSSL_ROOT_DIR={{.Env.OPENSSL_INCLUDE_x64}}\.. -DPostgreSQL_ROOT={{.Env.POSTGRESQL_LIB_x64}}\.. -DCMAKE_IGNORE_PREFIX_PATH=C:/strawberry/c',
         'NON_QTBASE_CMAKE_ARGS=-DFFMPEG_DIR={{.Env.FFMPEG_DIR_LLVM_MINGW}} -DQT_DEPLOY_FFMPEG=TRUE -DCMAKE_IGNORE_PREFIX_PATH=C:/strawberry/c',
-        'LLVM_INSTALL_DIR=C:\llvm-mingw',
+        'LLVM_INSTALL_DIR={{.Env.LLVM_INSTALL_DIR_llvm_mingw}}',
         'Protobuf_ROOT={{.Env.Protobuf_ROOT_llvm_mingw}}',
     ]
 -
diff --git a/coin/provisioning/common/unix/libclang.sh b/coin/provisioning/common/unix/libclang.sh
index 5f75d7e4..5d0b4230 100755
--- a/coin/provisioning/common/unix/libclang.sh
+++ b/coin/provisioning/common/unix/libclang.sh
@@ -20,33 +20,33 @@ PROVISIONING_DIR="$(dirname "$0")/../../"
 # shellcheck source=./common.sourced.sh
 source "$PROVISIONING_DIR"/common/unix/common.sourced.sh
 
-libclang_version="15.0.0"
+libclang_version="17.0.6"
 
 if uname -a |grep -q Darwin; then
     version=$libclang_version
     url="https://download.qt.io/development_releases/prebuilt/libclang/qt/libclang-release_${version}-based-mac.7z"
     url_cached="http://ci-files01-hki.ci.qt.io/input/libclang/qt/libclang-release_${version}-based-mac.7z"
-    sha1="6d916a17459c81551dde47580ae3f071e93338a5"
-elif test -f /etc/redhat-release && grep "Red Hat" /etc/redhat-release | grep -v "8" ; then
+    sha1="e8ecc2fb0d7d7a0f60a50379f16fbf3eef679d78"
+elif test -f /etc/redhat-release && grep "Red Hat" /etc/redhat-release | grep "9" ; then
     version=$libclang_version
-    url="https://download.qt.io/development_releases/prebuilt/libclang/qt/libclang-release_${version}-based-linux-Rhel8.4-gcc10.0-x86_64.7z"
-    url_cached="http://ci-files01-hki.ci.qt.io/input/libclang/qt/libclang-release_${version}-based-linux-Rhel8.4-gcc10.0-x86_64.7z"
-    sha1="6ca035bb522022d34d61759e0460845832933b5c"
-elif [ "$PROVISIONING_OS_ID" = ubuntu ]; then
-        version=$libclang_version
-        url="https://download.qt.io/development_releases/prebuilt/libclang/qt/libclang-release_${version}-based-linux-Ubuntu22.04-gcc11.2-x86_64.7z"
-        url_cached="http://ci-files01-hki.ci.qt.io/input/libclang/qt/libclang-release_${version}-based-linux-Ubuntu22.04-gcc11.2-x86_64.7z"
-        sha1="dd170ec762a7ec8ac84b4b5cac3a422514e5b030"
-elif [ "$PROVISIONING_OS_ID" = debian ]; then
-        version=17.0.1
-        url="https://download.qt.io/development_releases/prebuilt/libclang/qt/libclang-release_${version}-based-linux-Debian11.6-gcc10.0-arm64.7z"
-        url_cached="http://ci-files01-hki.ci.qt.io/input/libclang/qt/libclang-release_${version}-based-linux-Debian11.6-gcc10.0-arm64.7z"
-        sha1="43f0210121b889107e3dab631e8104e661a3866b"
+    url="https://download.qt.io/development_releases/prebuilt/libclang/qt/libclang-release_${version}-based-linux-Rhel9.2-gcc10.0-x86_64.7z"
+    url_cached="http://ci-files01-hki.ci.qt.io/input/libclang/qt/libclang-release_${version}-based-linux-Rhel9.2-gcc10.0-x86_64.7z"
+    sha1="102374379af906bd26085fcd18047cac4d0fb7bf"
+elif test "$PROVISIONING_OS_ID" == "ubuntu" ; then
+    version=$libclang_version
+    url="https://download.qt.io/development_releases/prebuilt/libclang/qt/libclang-release_${version}-based-linux-Ubuntu22.04-gcc11.2-x86_64.7z"
+    url_cached="http://ci-files01-hki.ci.qt.io/input/libclang/qt/libclang-release_${version}-based-linux-Ubuntu22.04-gcc11.2-x86_64.7z"
+    sha1="4a793c9da9a02bd23c163c74dbc5565164a00c3f"
+elif test "$PROVISIONING_OS_ID" == "debian" && test "$PROVISIONING_ARCH" == "arm64" ; then
+    version=$libclang_version
+    url="https://download.qt.io/development_releases/prebuilt/libclang/qt/libclang-release_${version}-based-linux-Debian11.6-gcc10.0-arm64.7z"
+    url_cached="http://ci-files01-hki.ci.qt.io/input/libclang/qt/libclang-release_${version}-based-linux-Debian11.6-gcc10.0-arm64.7z"
+    sha1="b5ff982738dbb6efe1a34ed26ff47fca2b1b3b93"
 else
     version=$libclang_version
-    url="https://download.qt.io/development_releases/prebuilt/libclang/qt/libclang-release_${version}-based-linux-Ubuntu20.04-gcc9.3-x86_64.7z"
-    url_cached="http://ci-files01-hki.ci.qt.io/input/libclang/qt/libclang-release_${version}-based-linux-Ubuntu20.04-gcc9.3-x86_64.7z"
-    sha1="bd6615012b8bdb2720a45ede56e05f6db7191843"
+    url="https://download.qt.io/development_releases/prebuilt/libclang/qt/libclang-release_${version}-based-linux-Rhel8.8-gcc10.0-x86_64.7z"
+    url_cached="http://ci-files01-hki.ci.qt.io/input/libclang/qt/libclang-release_${version}-based-linux-Rhel8.8-gcc10.0-x86_64.7z"
+    sha1="2a58cc71ad90eb6234c56ef7b141f32361b4312a"
 fi
 
 zip="/tmp/libclang.7z"
diff --git a/coin/provisioning/common/windows/libclang.ps1 b/coin/provisioning/common/windows/libclang.ps1
index 57f42057..8e5c6845 100644
--- a/coin/provisioning/common/windows/libclang.ps1
+++ b/coin/provisioning/common/windows/libclang.ps1
@@ -5,7 +5,7 @@ param(
 )
 . "$PSScriptRoot\helpers.ps1"
 
-$libclang_version="15.0.0"
+$libclang_version="17.0.6"
 Write-Output "libClang = $libclang_version" >> ~/versions.txt
 
 # PySide versions following 5.6 use a C++ parser based on Clang (http://clang.org/).
@@ -38,7 +38,7 @@ $toolchainSuffix = ""
 
 if ( $toolchain -eq "vs2019" ) {
     if ( $archVer -eq 64 ) {
-        $sha1 = "e7c2d27f0e99d63e49225cb1be18c76a1e2a124b"
+        $sha1 = "7e3e474081d2e1d5d95c9743532de01b8e59b9aa"
     }
     else {
         $sha1 = ""
@@ -48,7 +48,7 @@ if ( $toolchain -eq "vs2019" ) {
 
 if ( $toolchain -eq "mingw" ) {
     if ( $archVer -eq 64 ) {
-        $sha1 = "6c9300051533d5648ffe3e8ae1eb00decae8e6bf"
+        $sha1 = "b9e65f617cd8d6e8fb8ae734383f03f6a7b202ed"
     }
     else {
         $sha1 = ""
@@ -56,6 +56,18 @@ if ( $toolchain -eq "mingw" ) {
     $toolchainSuffix = "mingw"
 }
 
+if ( $toolchain -eq "llvm-mingw" ) {
+    if ( $archVer -eq 64 ) {
+        $sha1 = "1844f107d067b69deabf375fc024848c1c8b015d"
+    }
+    else {
+        $sha1 = ""
+    }
+    # Due to COIN-1137 forced to use a '_' instead of '-'
+    $toolchainSuffix = "llvm_mingw"
+}
+
+
 install $sha1 $baseDestination-$archVer
 
 if ( $setDefault ) {
diff --git a/coin/provisioning/qtci-windows-10_22H2-x86_64/08-libclang.ps1 b/coin/provisioning/qtci-windows-10_22H2-x86_64/08-libclang.ps1
index 7681f01a..88247275 100644
--- a/coin/provisioning/qtci-windows-10_22H2-x86_64/08-libclang.ps1
+++ b/coin/provisioning/qtci-windows-10_22H2-x86_64/08-libclang.ps1
@@ -1,3 +1,4 @@
 # Do not set the default LLVM_INSTALL_DIR for mingw, leave it with msvc for compat
 . "$PSScriptRoot\..\common\windows\libclang.ps1" 64 mingw $False
+. "$PSScriptRoot\..\common\windows\libclang.ps1" 64 llvm-mingw $False
 . "$PSScriptRoot\..\common\windows\libclang.ps1" 64 vs2019
diff --git a/coin/provisioning/qtci-windows-11_22H2-x86_64/08-libclang.ps1 b/coin/provisioning/qtci-windows-11_22H2-x86_64/08-libclang.ps1
index 7681f01a..88247275 100644
--- a/coin/provisioning/qtci-windows-11_22H2-x86_64/08-libclang.ps1
+++ b/coin/provisioning/qtci-windows-11_22H2-x86_64/08-libclang.ps1
@@ -1,3 +1,4 @@
 # Do not set the default LLVM_INSTALL_DIR for mingw, leave it with msvc for compat
 . "$PSScriptRoot\..\common\windows\libclang.ps1" 64 mingw $False
+. "$PSScriptRoot\..\common\windows\libclang.ps1" 64 llvm-mingw $False
 . "$PSScriptRoot\..\common\windows\libclang.ps1" 64 vs2019