diff --git a/7kaa-2.15.5.tar.xz b/7kaa-2.15.5.tar.xz
deleted file mode 100644
index f373875..0000000
--- a/7kaa-2.15.5.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:350a2681985feb4b71d20677d1a6d11921b9e3d97facbc94e4f020e848d8ab2b
-size 47501772
diff --git a/7kaa-2.15.6.tar.gz b/7kaa-2.15.6.tar.gz
new file mode 100644
index 0000000..2ae1535
--- /dev/null
+++ b/7kaa-2.15.6.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ccee9c4778211c73ed770e12c199be5b5eb34250f26a5811020e9f36f78b72c6
+size 59316364
diff --git a/7kaa.changes b/7kaa.changes
index 175451b..bb7e4dc 100644
--- a/7kaa.changes
+++ b/7kaa.changes
@@ -1,3 +1,46 @@
+-------------------------------------------------------------------
+Tue Sep 26 08:42:27 UTC 2023 - Dirk Stoecker <opensuse@dstoecker.de>
+
+- switch build to official release file
+
+-------------------------------------------------------------------
+Sat Sep 23 07:51:56 UTC 2023 - Carsten Ziepke <kieltux@gmail.com>
+
+- Update to 2.15.6
+  * Fixed bugs related to rebelling
+  * Improved AI on handling rebellions
+  * Fixed several crash bugs
+  * Fixed small graphic update bugs
+  * Fixed bug when assigning to ship
+  * Fixed AI declare war bug
+  * Fixed AI give tribute bug
+  * Greatly improved AI sea based missions
+  * Improved AI on training and recruiting
+  * Cleaned up some deinit code
+  * Improved handling of town migration with workers
+  * Improved AI to be move aggressive in attack missions
+  * Improved validation of attack actions
+  * Added display of the land mass size in the F10 menu
+  * Enabled town peasant migration
+  * Created button for markets to control stocking type 
+  * Added Phoenix vision on fryhtan lairs
+  * Improved AI at building harbors
+  * Fixed bugs related to AI surrenders
+  * Improved locale code
+  * Made English the default language on Windows
+  * Increased the max number of raw resource sites to 10
+  * Fixed bug on trade ship docking and exiting
+  * Reduced penalty on trade unit destruction
+  * Improved distance calculating so placing buildings and towns
+    on any side is treated the same
+  * Fixed some path finding issues
+  * Enabled the ability for AI to scout the map
+  * Fixed screen edge mouse handling bug
+  * Fixed exploit when spying on an enemy nation report
+  * Improved AI handling on granting money to towns and recruiting
+  * Increased the speed of speed level 9
+- Update BuildRequires pkgconfig(sdl2) >= 2.24.0
+
 -------------------------------------------------------------------
 Sun May  1 10:18:31 UTC 2022 - Ferdinand Thiessen <rpm@fthiessen.de>
 
diff --git a/7kaa.spec b/7kaa.spec
index e9e534a..fdc0a4f 100644
--- a/7kaa.spec
+++ b/7kaa.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package 7kaa
 #
-# Copyright (c) 2022 SUSE LLC
+# Copyright (c) 2023 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -18,15 +18,18 @@
 
 %define base_version 2.15
 Name:           7kaa
-Version:        %{base_version}.5
+Version:        %{base_version}.6
 Release:        0
 Summary:        Seven Kingdoms: Ancient Adversaries
 License:        GPL-2.0-only
 Group:          Amusements/Games/Strategy/Real Time
 URL:            https://7kfans.com/
-Source0:        https://github.com/the3dfxdude/%{name}/releases/download/v%{version}/%{name}-%{version}.tar.xz
+Source0:        https://github.com/the3dfxdude/%{name}/archive/refs/tags/v%{version}.tar.gz#/%{name}-%{version}.tar.gz
 Source1:        %{name}.png
 Source2:        %{name}.desktop
+BuildRequires:  autoconf
+BuildRequires:  autoconf-archive
+BuildRequires:  automake
 BuildRequires:  curl-devel
 BuildRequires:  fdupes
 BuildRequires:  gcc-c++
@@ -34,7 +37,7 @@ BuildRequires:  pkgconfig
 BuildRequires:  update-desktop-files
 BuildRequires:  pkgconfig(libenet)
 BuildRequires:  pkgconfig(openal)
-BuildRequires:  pkgconfig(sdl2)
+BuildRequires:  pkgconfig(sdl2) >= 2.24.0
 Recommends:     %{name}-music >= %{base_version}
 
 %description
@@ -58,6 +61,8 @@ the GPL v2.
 %setup -q
 
 %build
+autoreconf -if
+./autogen.sh
 export CXXFLAGS="%{optflags} -fno-strict-aliasing"
 %configure --docdir=%{_docdir}/%{name}
 %make_build