diff --git a/debian/changelog b/debian/changelog
index ff51673..fbf5561 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -6,6 +6,7 @@ qt6-base (6.6.1+dfsg-1) UNRELEASED; urgency=medium
   * New upstream release (6.6.1).
   * Update ABI to 6.6.1.
   * Remove patches that have been applied upstream.
+  * Update list of installed files.
 
  -- Debian Qt/KDE Maintainers <debian-qt-kde@lists.debian.org>  Mon, 04 Dec 2023 19:53:40 +0100
 
diff --git a/debian/qmake6.install b/debian/qmake6.install
index aa291b7..e6ee6a6 100644
--- a/debian/qmake6.install
+++ b/debian/qmake6.install
@@ -35,10 +35,6 @@ usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/common/macx.conf
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/common/msvc-based-version.conf
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/common/msvc-desktop.conf
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/common/msvc-version.conf
-usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/common/nacl/g++-nacl32.conf
-usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/common/nacl/g++-nacl64.conf
-usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/common/nacl/nacl-base.conf
-usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/common/nacl/qplatformdefs.h
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/common/posix/qplatformdefs.h
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/common/qcc-base-qnx-aarch64le.conf
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/common/qcc-base-qnx-armle-v7.conf
@@ -184,7 +180,6 @@ usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/features/default_pre.prf
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/features/designer_defines.prf
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/features/device_config.prf
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/features/egl.prf
-usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/features/entrypoint.prf
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/features/exceptions.prf
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/features/exceptions_off.prf
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/features/exclusive_builds.prf
@@ -403,10 +398,6 @@ usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/unsupported/linux-host-g++/qmake.conf
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/unsupported/linux-host-g++/qplatformdefs.h
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/unsupported/linux-scratchbox2-g++/qmake.conf
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/unsupported/linux-scratchbox2-g++/qplatformdefs.h
-usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/unsupported/nacl-g++/qmake.conf
-usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/unsupported/nacl-g++/qplatformdefs.h
-usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/unsupported/nacl64-g++/qmake.conf
-usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/unsupported/nacl64-g++/qplatformdefs.h
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/unsupported/qnx-X11-g++/qmake.conf
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/unsupported/qnx-X11-g++/qplatformdefs.h
 usr/lib/${DEB_HOST_MULTIARCH}/qt6/mkspecs/unsupported/vxworks-ppc-dcc/qmake.conf
diff --git a/debian/qt6-base-dev.install b/debian/qt6-base-dev.install
index c9a5369..808e894 100755
--- a/debian/qt6-base-dev.install
+++ b/debian/qt6-base-dev.install
@@ -2534,6 +2534,7 @@ usr/include/${DEB_HOST_MULTIARCH}/qt6/QtCore/QtExceptionHandling
 usr/include/${DEB_HOST_MULTIARCH}/qt6/QtCore/QtLogging
 usr/include/${DEB_HOST_MULTIARCH}/qt6/QtCore/QtMalloc
 usr/include/${DEB_HOST_MULTIARCH}/qt6/QtCore/QtMinMax
+usr/include/${DEB_HOST_MULTIARCH}/qt6/QtCore/QOperatingSystemVersionUnexported
 usr/include/${DEB_HOST_MULTIARCH}/qt6/QtCore/QtPreprocessorSupport
 usr/include/${DEB_HOST_MULTIARCH}/qt6/QtCore/QtProcessorDetection
 usr/include/${DEB_HOST_MULTIARCH}/qt6/QtCore/QtResource