diff --git a/.gitignore b/.gitignore
index cac3f58..7a5cfa7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,12 @@
 /third_party-0.8.1.tar.gz
 /jpegxl-0.8.2.tar.gz
 /third_party-0.8.2.tar.gz
+/jpegxl-0.9.2.tar.gz
+/third_party-0.9.2.tar.gz
+/jpegxl-0.10.2.tar.gz
+/third_party-0.10.2.tar.gz
+/jpegxl-0.10.3.tar.gz
+/third_party-0.10.3.tar.gz
+/jpegxl-0.11.1.tar.gz
+/third_party-0.11.1.tar.gz
+/testdata-0.11.1.tar.gz
diff --git a/.packit.yaml b/.packit.yaml
new file mode 100644
index 0000000..cd9ebce
--- /dev/null
+++ b/.packit.yaml
@@ -0,0 +1,17 @@
+# See the documentation for more information:
+# https://packit.dev/docs/configuration/
+
+upstream_project_url: https://github.com/libjxl/libjxl
+upstream_tag_template: v{version}
+
+# run opencv-clean.sh
+# the sed currently hacks the script so that the version is correctly set and the sources upload is handled by Packit
+actions:
+  pre-sync:
+    - bash -c "cd ${PACKIT_DOWNSTREAM_REPO}; sed '1d' ./update_third_party.sh | VERSION=${PACKIT_PROJECT_VERSION} bash"
+
+jobs:
+  - job: pull_from_upstream
+    trigger: release
+    dist_git_branches:
+      - fedora-rawhide
diff --git a/README.packit b/README.packit
new file mode 100644
index 0000000..fafa6eb
--- /dev/null
+++ b/README.packit
@@ -0,0 +1,3 @@
+This repository is maintained by packit.
+https://packit.dev/
+The file was generated using packit 0.104.1.
diff --git a/jpegxl.spec b/jpegxl.spec
index 2617bf7..f17a415 100644
--- a/jpegxl.spec
+++ b/jpegxl.spec
@@ -1,16 +1,16 @@
 # epel 8 need this other already have it
 %undefine __cmake_in_source_build
 
+# developper recommendation
+%global toolchain clang
 
 # Uncomment for special build to rebuild aom on bumped soname.
 #global new_soname 1
-%global sover_old 0.7
-%global sover 0.8
-
-%global gdk_pixbuf_moduledir $(pkgconf gdk-pixbuf-2.0 --variable=gdk_pixbuf_moduledir)
+%global sover_old 0.10
+%global sover 0.11
 
+%bcond_with gimp_plugin
 %if 0%{?fedora}
-%bcond_without gimp_plugin
 %bcond_without tcmalloc
 %endif
 
@@ -20,7 +20,7 @@ decoder).}
 
 Name:           jpegxl
 Epoch:          1
-Version:        0.8.2
+Version:        0.11.1
 Release:        %autorelease %{?new_soname:-p -e 0~sonamebump}
 Summary:        JPEG XL image format reference implementation
 
@@ -30,30 +30,32 @@ Summary:        JPEG XL image format reference implementation
 # skcms: BSD
 License:        BSD-3-Clause AND Apache-2.0 AND Zlib
 URL:            https://jpeg.org/jpegxl/
-VCS:            https://github.com/libjxl/libjxl
-Source0:        %vcs/archive/v%{version}/%{name}-%{version}.tar.gz
+Source0:        https://github.com/libjxl/libjxl/archive/v%{version}/%{name}-%{version}.tar.gz
 
-# set VERSION and run ./update_third_party.sh to get Source1
+# set VERSION and run ./update_third_party.sh to get Source1 and Source2
 Source1:        third_party-%{version}.tar.gz
+Source2:        testdata-%{version}.tar.gz
 
 BuildRequires:  asciidoc
 BuildRequires:  cmake
 BuildRequires:  doxygen
-BuildRequires:  gcc-c++
+BuildRequires:  clang
 BuildRequires:  giflib-devel
 %if %{with tcmalloc}
 BuildRequires:  gperftools-devel
 %endif
 BuildRequires:  ninja-build
 %if %{with gimp_plugin}
-BuildRequires:  pkgconfig(gimp-2.0)
+BuildRequires:  pkgconfig(gimp-3.0)
 %endif
 ## sjpeg examples are not built
 #BuildRequires:  (pkgconfig(glut) or pkgconfig(freeglut))
 BuildRequires:  gtest-devel
 BuildRequires:  gflags-devel
+BuildRequires:  gmock-devel
 BuildRequires:  pkgconfig(libhwy)
 BuildRequires:  pkgconfig(libbrotlicommon)
+BuildRequires:  pkgconfig(lcms2)
 BuildRequires:  pkgconfig(libjpeg)
 BuildRequires:  pkgconfig(libpng)
 ## benchmark tools are not built
@@ -71,16 +73,15 @@ BuildRequires:  libjxl < %{epoch}:%{version}
 %endif
 
 # No official release
-Provides:       bundled(sjpeg) = 0-0.1.20210522git868ab55
+Provides:       bundled(sjpeg) = 0-0.1.20230608gite5ab130
 # Build system is Bazel, which is not packaged by Fedora
-Provides:       bundled(skcms) = 0-0.1.20210522git6437475
+Provides:       bundled(skcms) = 0-0.1.20240122git51b7f2a
 
 %description
 %common_description
 
 %package     -n libjxl-utils
 Summary:        Utilities for manipulating JPEG XL images
-Recommends:     jxl-pixbuf-loader = %{epoch}:%{version}-%{release}
 Recommends:     gimp-jxl-plugin   = %{epoch}:%{version}-%{release}
 Provides:       jpegxl-utils = %{epoch}:%{version}-%{release}
 Obsoletes:      jpegxl-utils < 0.3.7-5
@@ -109,9 +110,12 @@ Documentation for JPEG-XL.
 %package     -n libjxl
 Summary:        Library files for JPEG-XL
 Requires:       shared-mime-info
-Recommends:     jxl-pixbuf-loader = %{epoch}:%{version}-%{release}
 Provides:       jpegxl-libs = %{epoch}:%{version}-%{release}
 Obsoletes:      jpegxl-libs < 0.3.7-5
+Obsoletes:      jxl-pixbuf-loader < %{epoch}:%{version}-%{release}
+%if %{without gimp_plugin}
+Obsoletes:      gimp-jxl-plugin < 1:0.10.3-4
+%endif
 
 %description -n libjxl
 %{common_description}
@@ -129,14 +133,6 @@ Obsoletes:      jpegxl-devel < 0.3.7-5
 
 Development files for JPEG-XL.
 
-%package     -n jxl-pixbuf-loader
-Summary:        JPEG-XL image loader for GTK+ applications
-BuildRequires:  pkgconfig(gdk-pixbuf-2.0)
-Requires:       gdk-pixbuf2
-
-%description -n jxl-pixbuf-loader
-Jxl-pixbuf-loader contains a plugin to load JPEG-XL images in GTK+ applications.
-
 %if %{with gimp_plugin}
 %package     -n gimp-jxl-plugin
 Summary:        A plugin for loading and saving JPEG-XL images
@@ -148,15 +144,17 @@ This is a GIMP plugin for loading and saving JPEG-XL images.
 
 %prep
 %autosetup -p1 -n libjxl-%{version}
-rm -rf third_party/
-%setup -q -T -D -a 1 -n libjxl-%{version}
+rm -rf testdata/ third_party/
+%setup -q -T -D -a 1 -a 2 -n libjxl-%{version}
 
 %build
+export CC=clang CXX=clang++
 %cmake  -DENABLE_CCACHE=1 \
-        -DBUILD_TESTING=OFF \
+        -DBUILD_TESTING=ON \
         -DINSTALL_GTEST:BOOL=OFF \
         -DJPEGXL_ENABLE_BENCHMARK:BOOL=OFF \
         -DJPEGXL_ENABLE_PLUGINS:BOOL=ON \
+        -DJPEGXL_ENABLE_PLUGIN_GDKPIXBUF:BOOL=OFF \
         -DJPEGXL_FORCE_SYSTEM_BROTLI:BOOL=ON \
         -DJPEGXL_FORCE_SYSTEM_GTEST:BOOL=ON \
         -DJPEGXL_FORCE_SYSTEM_HWY:BOOL=ON \
@@ -169,29 +167,38 @@ rm -rf third_party/
 
 %install
 %cmake_install
-rm -v %{buildroot}%{_libdir}/*.a
+#rm -v %{buildroot}%{_libdir}/*.a
 
 %if 0%{?new_soname}
 cp -p %{_libdir}/libjxl.so.%{sover_old}*     \
   %{_libdir}/libjxl_threads.so.%{sover_old}* \
+  %{_libdir}/libjxl_cms.so.%{sover_old}* \
   %{buildroot}%{_libdir}
 %endif
 
+%check
+%ifarch s390x
+# https://github.com/libjxl/libjxl/issues/3629
+%ctest -E 'DecodeTest\.(ProgressionTestLosslessAlpha|FlushTestLosslessProgressiveAlpha)|EncodeTest\.FrameSettingsTest|JxlTest\.RoundtripAlpha(Resampling(OnlyAlpha)?|16)|JxlTest\.RoundtripProgressive(Level2Slow)?|ModularTest\.RoundtripLossy(DeltaPalette|16)?|RoundtripLossless/ModularTestParam\.RoundtripLossless/1bitSqueeze|RoundtripLossless/ModularTestParam\.RoundtripLossless/(1|2[01467]|30)bitSqueeze|PassesTest\.ProgressiveDownsample2DegradesCorrectly(Grayscale)?'
+%else
+%ctest
+%endif
+
 %files -n libjxl-utils
 %doc CONTRIBUTING.md CONTRIBUTORS README.md
 %{_bindir}/cjxl
 %{_bindir}/djxl
-%{_bindir}/cjpeg_hdr
 %{_bindir}/jxlinfo
 %{_mandir}/man1/cjxl.1*
 %{_mandir}/man1/djxl.1*
 
 %files -n libjxl-devtools
-%{_bindir}/fuzzer_corpus
+%{_bindir}/djxl_fuzzer_corpus
 %{_bindir}/butteraugli_main
 %{_bindir}/decode_and_encode
 %{_bindir}/display_to_hlg
 %{_bindir}/exr_to_pq
+%{_bindir}/icc_simplify
 %{_bindir}/pq_to_hlg
 %{_bindir}/render_hlg
 %{_bindir}/tone_map
@@ -201,6 +208,7 @@ cp -p %{_libdir}/libjxl.so.%{sover_old}*     \
 %{_bindir}/ssimulacra2
 %{_bindir}/xyb_range
 %{_bindir}/jxl_from_tree
+%{_bindir}/local_tone_map
 
 %files doc
 %doc doc/*.md
@@ -211,12 +219,12 @@ cp -p %{_libdir}/libjxl.so.%{sover_old}*     \
 %license LICENSE
 %{_libdir}/libjxl.so.%{sover}*
 %{_libdir}/libjxl_threads.so.%{sover}*
+%{_libdir}/libjxl_cms.so.%{sover}*
 %if 0%{?new_soname}
 %{_libdir}/libjxl.so.%{sover_old}*
 %{_libdir}/libjxl_threads.so.%{sover_old}*
+%{_libdir}/libjxl_cms.so.%{sover_old}*
 %endif
-%dir %{_datadir}/thumbnailers
-%{_datadir}/thumbnailers/jxl.thumbnailer
 %{_datadir}/mime/packages/image-jxl.xml
 
 %files -n libjxl-devel
@@ -224,12 +232,11 @@ cp -p %{_libdir}/libjxl.so.%{sover_old}*     \
 %{_includedir}/jxl/
 %{_libdir}/libjxl.so
 %{_libdir}/libjxl_threads.so
+%{_libdir}/libjxl_cms.so
+%{_libdir}/libjxl_extras_codec.a
 %{_libdir}/pkgconfig/libjxl.pc
 %{_libdir}/pkgconfig/libjxl_threads.pc
-
-%files -n jxl-pixbuf-loader
-%license LICENSE
-%{_libdir}/gdk-pixbuf-2.0/*/loaders/libpixbufloader-jxl.so
+%{_libdir}/pkgconfig/libjxl_cms.pc
 
 %if %{with gimp_plugin}
 %files -n gimp-jxl-plugin
diff --git a/sources b/sources
index 91cd511..f7d352f 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,3 @@
-SHA512 (jpegxl-0.8.2.tar.gz) = 769f102c46755d11a705ce47ae9e2ef49627ae708f416693bf1293aeeb713934baf4466e45b9c70b04ec1fc8b4a00d5ca7688c8ca03f0a91c9a15252c522a887
-SHA512 (third_party-0.8.2.tar.gz) = 74f536c19d38b413bbca0988d8b36aae73110af3b19b78932309fa1892f99f0cc4984cbc4d96dde0716ee993c62f14464a639f8f0a4907c0e6f5ad37b1228816
+SHA512 (jpegxl-0.11.1.tar.gz) = 0cfd81d9d3b783f96bd04f244d73ffbc12186c89993d46064a2751bef0a446a5e86be05add5c10f60d4482d39333d9bf3f9a866d6eb84f8fa0d4e8b5828fd74c
+SHA512 (testdata-0.11.1.tar.gz) = e775be0e8a56a828a4b70a174c841b3d474dbd170d899c50343896b21e46c6ae20f017f905ad7b83e097031e8add2788a00b1c452aa22e159b1f3a4e72a47155
+SHA512 (third_party-0.11.1.tar.gz) = 720544bd722cbc6ef81db660786e4b022f156d05672b7d7ee6110d367272dcf22a35458f51e0d850df2f6fb368978c43fa4fff99763010360a8b5673d2e556ca
diff --git a/update_third_party.sh b/update_third_party.sh
index 23411ab..70ba696 100755
--- a/update_third_party.sh
+++ b/update_third_party.sh
@@ -1,15 +1,20 @@
-VERSION=0.8.2
+VERSION=0.11.1
 
-if [ ! -d libjxl ]; then
 git clone https://github.com/libjxl/libjxl
-fi
 cd libjxl/
 git checkout .
 git checkout v${VERSION}
-git submodule init ; git submodule update
-git pull
-rm -r third_party/brotli/ third_party/googletest/
-rm -r third_party/HEVCSoftware/ third_party/highway/
-rm -r third_party/lcms/ third_party/libpng/
-rm -r third_party/skcms/profiles/ third_party/zlib
-tar -zcvf ../third_party-${VERSION}.tar.gz third_party/
+./deps.sh
+rm -rvf third_party/brotli/
+rm -rvf third_party/googletest/
+rm -rvf third_party/HEVCSoftware/
+rm -rvf third_party/highway/
+rm -rvf third_party/lcms/
+rm -rvf third_party/libjpeg-turbo
+rm -rvf third_party/libpng/
+rm -rvf third_party/skcms/profiles/
+rm -rvf third_party/zlib
+tar -zcf ../third_party-${VERSION}.tar.gz third_party/
+tar -zcf ../testdata-${VERSION}.tar.gz testdata/
+cd ..
+rm -rf libjxl/