diff --git a/.github/workflows/CI-unixish.yml b/.github/workflows/CI-unixish.yml
index 0e40bfe0041..b821d11c360 100644
--- a/.github/workflows/CI-unixish.yml
+++ b/.github/workflows/CI-unixish.yml
@@ -512,7 +512,9 @@ jobs:
       - name: Install missing software on ubuntu
         run: |
           sudo apt-get update
-          sudo apt-get install qtbase5-dev qttools5-dev libqt5charts5-dev libboost-container-dev
+          # qt6-tools-dev-tools for lprodump
+          # qt6-l10n-tools for lupdate
+          sudo apt-get install qt6-base-dev libqt6charts6-dev qt6-tools-dev qt6-tools-dev-tools qt6-l10n-tools libglx-dev libgl1-mesa-dev
 
       - name: Self check (build)
         run: |
@@ -520,10 +522,9 @@ jobs:
           # compile with verification and ast matchers
           make -j$(nproc) -s CPPFLAGS="-DCHECK_INTERNAL" CXXFLAGS="-g -O2 -w -DHAVE_BOOST" MATCHCOMPILER=yes VERIFY=1
 
-      # TODO: update to Qt6
       - name: CMake
         run: |
-          cmake -S . -B cmake.output -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DWITH_QCHART=On -DUSE_MATCHCOMPILER=Verify -DENABLE_CHECK_INTERNAL=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On
+          cmake -S . -B cmake.output -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DUSE_QT6=On -DWITH_QCHART=On -DUSE_MATCHCOMPILER=Verify -DENABLE_CHECK_INTERNAL=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On
 
       - name: Generate dependencies
         run: |
@@ -552,9 +553,9 @@ jobs:
           ./cppcheck $selfcheck_options $cppcheck_options --cppcheck-build-dir=b1 --addon=naming.json --enable=internal lib || ec=1
           # check gui with qt settings
           mkdir b2
-          ./cppcheck $selfcheck_options $cppcheck_options --cppcheck-build-dir=b2 -DQT_VERSION=0x050000 -DQ_MOC_OUTPUT_REVISION=67 -DQT_CHARTS_LIB --library=qt --addon=naming.json -Icmake.output/gui -Igui gui/*.cpp cmake.output/gui || ec=1
+          ./cppcheck $selfcheck_options $cppcheck_options --cppcheck-build-dir=b2 -DQT_VERSION=0x060000 -DQ_MOC_OUTPUT_REVISION=68 -DQT_CHARTS_LIB --library=qt --addon=naming.json -Icmake.output/gui -Igui gui/*.cpp cmake.output/gui || ec=1
           # self check test and tools
           ./cppcheck $selfcheck_options $cppcheck_options -Icli test/*.cpp tools/*.cpp || ec=1
           # triage
-          ./cppcheck $selfcheck_options $cppcheck_options -DQ_MOC_OUTPUT_REVISION=67 -DQT_CHARTS_LIB --library=qt -Icmake.output/tools/triage -Igui tools/triage/*.cpp cmake.output/tools/triage || ec=1
+          ./cppcheck $selfcheck_options $cppcheck_options -DQ_MOC_OUTPUT_REVISION=68 -DQT_CHARTS_LIB --library=qt -Icmake.output/tools/triage -Igui tools/triage/*.cpp cmake.output/tools/triage || ec=1
           exit $ec
diff --git a/.github/workflows/asan.yml b/.github/workflows/asan.yml
index 9c2a168433c..cde44475ee0 100644
--- a/.github/workflows/asan.yml
+++ b/.github/workflows/asan.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     env:
-      QT_VERSION: 5.15.2
+      QT_VERSION: 6.7.2
       ASAN_OPTIONS: detect_stack_use_after_return=1
       # TODO: figure out why there are cache misses with PCH enabled
       CCACHE_SLOPPINESS: pch_defines,time_macros
@@ -69,7 +69,7 @@ jobs:
       # TODO: disable all warnings
       - name: CMake
         run: |
-          cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=Off -DWITH_QCHART=Off -DUSE_MATCHCOMPILER=Verify -DANALYZE_ADDRESS=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=Off -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+          cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=Off -DUSE_QT6=On -DWITH_QCHART=On -DUSE_MATCHCOMPILER=Verify -DANALYZE_ADDRESS=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
         env:
           CC: clang-19
           CXX: clang++-19
diff --git a/.github/workflows/tsan.yml b/.github/workflows/tsan.yml
index d97e3f94c66..4dca274311b 100644
--- a/.github/workflows/tsan.yml
+++ b/.github/workflows/tsan.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     env:
-      QT_VERSION: 5.15.2
+      QT_VERSION: 6.7.2
       TSAN_OPTIONS: halt_on_error=1
       # TODO: figure out why there are cache misses with PCH enabled
       CCACHE_SLOPPINESS: pch_defines,time_macros
@@ -68,7 +68,7 @@ jobs:
 
       - name: CMake
         run: |
-          cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=Off -DWITH_QCHART=Off -DUSE_MATCHCOMPILER=Verify -DANALYZE_THREAD=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=Off -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+          cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=Off -DUSE_QT6=On -DWITH_QCHART=On -DUSE_MATCHCOMPILER=Verify -DANALYZE_THREAD=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=Off -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
         env:
           CC: clang-19
           CXX: clang++-19
diff --git a/.github/workflows/ubsan.yml b/.github/workflows/ubsan.yml
index 7e8cd5e824b..a7fc5b8cdc0 100644
--- a/.github/workflows/ubsan.yml
+++ b/.github/workflows/ubsan.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     env:
-      QT_VERSION: 5.15.2
+      QT_VERSION: 6.7.2
       UBSAN_OPTIONS: print_stacktrace=1:halt_on_error=1:report_error_type=1
       # TODO: figure out why there are cache misses with PCH enabled
       CCACHE_SLOPPINESS: pch_defines,time_macros
@@ -68,7 +68,7 @@ jobs:
       # TODO: disable warnings
       - name: CMake
         run: |
-          cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=ON -DWITH_QCHART=ON -DUSE_MATCHCOMPILER=Verify -DANALYZE_UNDEFINED=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+          cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DUSE_QT6=On -DWITH_QCHART=On -DUSE_MATCHCOMPILER=Verify -DANALYZE_UNDEFINED=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
         env:
           CC: clang-19
           CXX: clang++-19