diff --git a/_service b/_service
index 45b3ccb..9dcea5c 100644
--- a/_service
+++ b/_service
@@ -1,12 +1,12 @@
 <services>
   <service name="obs_scm" mode="disabled">
    <param name="changesgenerate">enable</param>
-   <param name="versionformat">5.15.12+kde@TAG_OFFSET@</param>
+   <param name="versionformat">5.15.14+kde@TAG_OFFSET@</param>
    <param name="url">https://invent.kde.org/qt/qt/qtquick3d.git</param>
    <param name="scm">git</param>
    <param name="filename">qtquick3d-everywhere-src</param>
    <param name="revision">kde/5.15</param>
-   <param name="parent-tag">v5.15.12-lts-lgpl</param>
+   <param name="parent-tag">v5.15.14-lts-lgpl</param>
    <param name="changesgenerate">enable</param>
   </service>
   <service name="set_version" mode="disabled"/>
diff --git a/_servicedata b/_servicedata
index b4c1b0e..e2921a3 100644
--- a/_servicedata
+++ b/_servicedata
@@ -1,4 +1,4 @@
 <servicedata>
 <service name="tar_scm">
                 <param name="url">https://invent.kde.org/qt/qt/qtquick3d.git</param>
-              <param name="changesrevision">d4f5966ba085a1146a04f2ea8449bbf14833a593</param></service></servicedata>
\ No newline at end of file
+              <param name="changesrevision">ad229f0c135f74801fba2bcd22c78abc0e3cf1d2</param></service></servicedata>
\ No newline at end of file
diff --git a/libqt5-qtquick3d.changes b/libqt5-qtquick3d.changes
index 816e4d7..d4b5d09 100644
--- a/libqt5-qtquick3d.changes
+++ b/libqt5-qtquick3d.changes
@@ -1,3 +1,23 @@
+-------------------------------------------------------------------
+Mon Jul 22 12:07:32 UTC 2024 - Christophe Marin <christophe@krop.fr>
+
+- Use system assimp unconditionally (boo#1228199)
+
+-------------------------------------------------------------------
+Wed May 29 06:47:24 UTC 2024 - Fabian Vogt <fabian@ritter-vogt.de>
+
+- Update to version 5.15.14+kde1, rebased upstream:
+  * Fix crash when a custom material / effect shader variable changes
+  * Skip processing unknown uniforms
+  * Fix progressive anti-aliasing for PrincipledMaterial
+  * Bump version to 5.15.14
+
+-------------------------------------------------------------------
+Tue Mar 19 09:58:31 UTC 2024 - Fabian Vogt <fabian@ritter-vogt.de>
+
+- Update to version 5.15.13+kde1, rebased upstream:
+  * Bump version to 5.15.13
+
 -------------------------------------------------------------------
 Fri Dec 29 13:30:17 UTC 2023 - Fabian Vogt <fabian@ritter-vogt.de>
 
diff --git a/libqt5-qtquick3d.spec b/libqt5-qtquick3d.spec
index 1c056d8..a277215 100644
--- a/libqt5-qtquick3d.spec
+++ b/libqt5-qtquick3d.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libqt5-qtquick3d
 #
-# Copyright (c) 2023 SUSE LLC
+# Copyright (c) 2024 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -16,21 +16,13 @@
 #
 
 
-# Available on Tumbleweed for all archs
-# TODO revisit the condition for Leap > 15.2 / jump
-%if 0%{?suse_version} > 1500
-%bcond_without system_assimp
-%else
-%bcond_with system_assimp
-%endif
-
 %define qt5_snapshot 1
 %define base_name libqt5
-%define real_version 5.15.12
-%define so_version 5.15.12
+%define real_version 5.15.14
+%define so_version 5.15.14
 %define tar_version qtquick3d-everywhere-src-%{version}
 Name:           libqt5-qtquick3d
-Version:        5.15.12+kde1
+Version:        5.15.14+kde1
 Release:        0
 Summary:        Qt 5 Quick 3D Module
 License:        GPL-3.0-or-later
@@ -40,11 +32,7 @@ Source:         %{tar_version}.tar.xz
 # PATCH-FIX-UPSTREAM
 Patch0:         qt5-quick3d-assimp-5.1.patch
 BuildRequires:  fdupes
-%if %{with system_assimp}
 BuildRequires:  pkgconfig(assimp) >= 5.0.0
-%else
-BuildRequires:  zlib-devel
-%endif
 BuildRequires:  libQt5Core-private-headers-devel >= 5.12
 BuildRequires:  libQt5Gui-private-headers-devel
 BuildRequires:  libQt5OpenGLExtensions-devel-static
@@ -138,15 +126,15 @@ Examples for the Qt Quick 3D module.
 %prep
 %autosetup -p1 -n %{tar_version}
 
+rm -r src/3rdparty/assimp/{src,unzip}
+
 %build
 %if %{qt5_snapshot}
 #force the configure script to generate the forwarding headers (it checks whether .git directory exists)
 mkdir .git
 %endif
 %qmake5 -- \
-  %if %{with system_assimp}
   -system-quick3d-assimp
-  %endif
 
 %make_jobs
 
diff --git a/qtquick3d-everywhere-src-5.15.12+kde1.obscpio b/qtquick3d-everywhere-src-5.15.12+kde1.obscpio
deleted file mode 100644
index 33f2eb6..0000000
--- a/qtquick3d-everywhere-src-5.15.12+kde1.obscpio
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:ab05f2a4deac8f80ea0ef1b42fb9997b9146516d4807bc71747d6173b7f7fe4b
-size 158885902
diff --git a/qtquick3d-everywhere-src-5.15.14+kde1.obscpio b/qtquick3d-everywhere-src-5.15.14+kde1.obscpio
new file mode 100644
index 0000000..9f2c1f7
--- /dev/null
+++ b/qtquick3d-everywhere-src-5.15.14+kde1.obscpio
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:73714ad18051d72ccf9f83f5c1911af8744a20aad4c307a3cfb45650cf97c983
+size 158886414
diff --git a/qtquick3d-everywhere-src.obsinfo b/qtquick3d-everywhere-src.obsinfo
index 5995f78..5310a1f 100644
--- a/qtquick3d-everywhere-src.obsinfo
+++ b/qtquick3d-everywhere-src.obsinfo
@@ -1,4 +1,4 @@
 name: qtquick3d-everywhere-src
-version: 5.15.12+kde1
-mtime: 1703803148
-commit: d4f5966ba085a1146a04f2ea8449bbf14833a593
+version: 5.15.14+kde1
+mtime: 1716846035
+commit: ad229f0c135f74801fba2bcd22c78abc0e3cf1d2