diff --git a/protobuf-c-1.5.0.tar.gz b/protobuf-c-1.5.0.tar.gz
deleted file mode 100644
index f0ff93f..0000000
--- a/protobuf-c-1.5.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:7b404c63361ed35b3667aec75cc37b54298d56dd2bcf369de3373212cc06fd98
-size 507251
diff --git a/protobuf-c-1.5.1.tar.gz b/protobuf-c-1.5.1.tar.gz
new file mode 100644
index 0000000..da58e0d
--- /dev/null
+++ b/protobuf-c-1.5.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:20d1dc257da96f8ddff8be4dd9779215bbd0a6069ed53bbe9de38fa7629be06b
+size 531693
diff --git a/protobuf-c.changes b/protobuf-c.changes
index 9b3b126..cb12812 100644
--- a/protobuf-c.changes
+++ b/protobuf-c.changes
@@ -1,3 +1,40 @@
+-------------------------------------------------------------------
+Sun Feb  9 23:46:28 UTC 2025 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release 1.5.1
+  * Order `oneof` union members from largest to smallest
+  * Better compatibility with protobuf >= 26.0
+- Delete 711.patch (merged)
+
+-------------------------------------------------------------------
+Sun Oct 27 11:25:31 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
+
+- Implement naming guidelines and rename libprotobuf-c-devel back
+  to just %name-devel. (The divergence came about on Nov 19 2021
+  as a result of merging two subpackages.)
+
+-------------------------------------------------------------------
+Tue Oct 22 08:48:51 UTC 2024 - Fridrich Strba <fstrba@suse.com>
+
+- Modified patch:
+  * 711.patch
+    + Drop a hunk that was creating problems when the protoc-c
+      was called directly and not just as a plugin to protoc
+
+-------------------------------------------------------------------
+Mon Oct 21 18:20:27 UTC 2024 - Fridrich Strba <fstrba@suse.com>
+
+- Added patch:
+  * 711.patch
+    + Backport the changes from the pull request #711
+      https://github.com/protobuf-c/protobuf-c/pull/711 fixing
+      build with protobuf 26.0+
+
+-------------------------------------------------------------------
+Mon Aug 12 21:14:32 UTC 2024 - Andreas Stieger <andreas.stieger@gmx.de>
+
+- BuildRequire a C++ compiler, previously pulled in via protobuf
+
 -------------------------------------------------------------------
 Wed Dec 27 11:32:24 UTC 2023 - Dirk Müller <dmueller@suse.com>
 
diff --git a/protobuf-c.spec b/protobuf-c.spec
index 64b23e8..fd4b606 100644
--- a/protobuf-c.spec
+++ b/protobuf-c.spec
@@ -1,8 +1,9 @@
 #
 # spec file for package protobuf-c
 #
-# Copyright (c) 2023 SUSE LLC
+# Copyright (c) 2025 SUSE LLC
 # Copyright (c) 2011 Pascal Bleser
+# Copyright (c) 2024 Andreas Stieger <Andreas.Stieger@gmx.de>
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -19,7 +20,7 @@
 
 %define sover 1
 Name:           protobuf-c
-Version:        1.5.0
+Version:        1.5.1
 Release:        0
 Summary:        C bindings for Google's Protocol Buffers
 License:        BSD-3-Clause
@@ -28,7 +29,7 @@ URL:            https://github.com/protobuf-c/protobuf-c
 Source:         https://github.com/protobuf-c/protobuf-c/releases/download/v%version/%name-%version.tar.gz
 BuildRequires:  autoconf
 BuildRequires:  automake
-BuildRequires:  gcc
+BuildRequires:  c++_compiler
 BuildRequires:  glibc-devel
 BuildRequires:  libtool
 BuildRequires:  make
@@ -49,15 +50,17 @@ Group:          System/Libraries
 This package provides a code generator and runtime libraries to use Protocol
 Buffers from pure C (not C++).
 
-%package -n libprotobuf-c-devel
-Summary:        C bindings for Google's Protocol Buffers
+%package devel
+Summary:        protobuf generator and headers
 Group:          Development/Libraries/C and C++
 Requires:       libprotobuf-c%sover = %version
 Recommends:     (protobuf-devel >= 2.6.0 with protobuf-devel < 22)
-Provides:       %name = %version
-Obsoletes:      %name <= 1.4.0
+Provides:       protobuf-c = %version-%release
+Obsoletes:      protobuf-c <= %version-%release
+Provides:       libprotobuf-c-devel = %version-%release
+Obsoletes:      libprotobuf-c-devel <= %version-%release
 
-%description -n libprotobuf-c-devel
+%description devel
 This package provides a code generator and runtime libraries to use Protocol
 Buffers from pure C (not C++).
 
@@ -79,15 +82,15 @@ rm %buildroot/%_libdir/*.la
 %check
 make check
 
-%post   -n libprotobuf-c%sover -p /sbin/ldconfig
-%postun -n libprotobuf-c%sover -p /sbin/ldconfig
+%ldconfig_scriptlets -n libprotobuf-c%sover
 
 %files -n libprotobuf-c%sover
 %license LICENSE
 %_libdir/libprotobuf-c.so.%sover
 %_libdir/libprotobuf-c.so.%sover.*
 
-%files -n libprotobuf-c-devel
+%files devel
+%license LICENSE
 %dir %_includedir/protobuf-c
 %dir %_includedir/google
 %dir %_includedir/google/protobuf-c