diff --git a/ykclient.spec b/ykclient.spec
index 5da2bf2..719af37 100644
--- a/ykclient.spec
+++ b/ykclient.spec
@@ -1,12 +1,14 @@
 Name:           ykclient
 Version:        2.15
-Release:        7%{?dist}
+Release:        24%{?dist}
 Summary:        Yubikey management library and client
 
-License:        BSD
+# Automatically converted from old format: BSD - review is highly recommended.
+License:        LicenseRef-Callaway-BSD
 URL:            http://opensource.yubico.com/yubico-c-client/
 Source0:	http://opensource.yubico.com/yubico-c-client/releases/ykclient-%{version}.tar.gz
 
+BuildRequires: make
 BuildRequires:  gcc
 BuildRequires:  curl-devel, chrpath, help2man
 
@@ -16,7 +18,7 @@ commandline for yubikeys
 %package devel
 
 Summary:  Development headers and libraries for ykclient
-Requires: %{name} = %{version}-%{release}
+Requires: %{name}%{?_isa} = %{version}-%{release}
 
 %description devel
 development files for ykclient  needed to build applications to
@@ -27,28 +29,78 @@ take advantage of yubikey authentication.
 
 %build
 %configure --enable-static=no
-make %{?_smp_mflags}
+%make_build
 
 %install
-rm -rf $RPM_BUILD_ROOT
-make install DESTDIR=$RPM_BUILD_ROOT
+%make_install
 rm $RPM_BUILD_ROOT%{_libdir}/libykclient.la
 chrpath -d $RPM_BUILD_ROOT%{_bindir}/ykclient
 
 %ldconfig_scriptlets
 
 %files
-%doc COPYING AUTHORS NEWS README
+%license COPYING
+%doc AUTHORS NEWS README
 %{_bindir}/ykclient
 %{_libdir}/libykclient.so.3*
 %{_mandir}/man1/ykclient.1.gz
 
 %files devel
-%doc README COPYING NEWS AUTHORS
 %{_includedir}/*.h
 %{_libdir}/libykclient.so
 
 %changelog
+* Fri Jul 17 2026 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-24
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild
+
+* Sat Jan 17 2026 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-23
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild
+
+* Fri Jul 25 2025 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-22
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
+
+* Sun Jan 19 2025 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-21
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild
+
+* Wed Sep 04 2024 Miroslav Suchý <msuchy@redhat.com> - 2.15-20
+- convert license to SPDX
+
+* Sat Jul 20 2024 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-19
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild
+
+* Sat Jan 27 2024 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-18
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
+
+* Sat Jul 22 2023 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-17
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild
+
+* Sat Jan 21 2023 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-16
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild
+
+* Sat Jul 23 2022 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-15
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild
+
+* Sat Jan 22 2022 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-14
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild
+
+* Fri Jul 23 2021 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-13
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild
+
+* Thu Jan 28 2021 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-12
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
+* Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-11
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
+* Fri Jan 31 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-10
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
+
+* Thu Aug 1 2019 Orion Poplawski <orion@nwra.com> - 2.15-9
+- Modernize spec
+
+* Sat Jul 27 2019 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-8
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
+
 * Sun Feb 03 2019 Fedora Release Engineering <releng@fedoraproject.org> - 2.15-7
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild