diff --git a/libbytesize-1.4.tar.gz b/libbytesize-1.4.tar.gz
deleted file mode 100644
index 13fd171..0000000
Binary files a/libbytesize-1.4.tar.gz and /dev/null differ
diff --git a/libbytesize-2.3.tar.gz b/libbytesize-2.3.tar.gz
new file mode 100644
index 0000000..0c6dd8d
Binary files /dev/null and b/libbytesize-2.3.tar.gz differ
diff --git a/libbytesize.spec b/libbytesize.spec
index 57b66e4..3a87103 100644
--- a/libbytesize.spec
+++ b/libbytesize.spec
@@ -1,14 +1,15 @@
 %define with_python2    0
 %define with_python3    1
+%define with_tools      1
 
 Name:           libbytesize
-Version:        1.4
-Release:        8
+Version:        2.3
+Release:        1
 Summary:        A library for working with sizes in bytes
 License:        LGPLv2+
 URL:            https://github.com/storaged-project/libbytesize
 Source0:        https://github.com/storaged-project/libbytesize/releases/download/%{version}/%{name}-%{version}.tar.gz
-BuildRequires:  gcc gmp-devel mpfr-devel pcre-devel gettext-devel libxslt gdb
+BuildRequires:  gcc gmp-devel mpfr-devel pcre-devel gettext-devel libxslt gdb pcre2-devel
 %if %{with_python2}
 BuildRequires: python2-devel
 %else
@@ -48,6 +49,16 @@ Requires: python2-six
 Python 2 bindings for libbytesize.
 %endif
 
+%if %{with_tools}
+%package tools
+Summary: Various nice tools based on libbytesize
+Requires: python3-bytesize = %{version}-%{release}
+
+%description tools
+Variousnicetoolsbasedonlibbytesize, in particular the calculator
+for doing calculations with storage sizes.
+%endif
+
 %package_help
 
 %prep
@@ -94,7 +105,19 @@ find %{buildroot} -type f -name "*.la" -delete
 %doc ABOUT-NLS README.md
 %{_datadir}/gtk-doc/html/*
 
+%if %{with_tools}
+%files tools
+%{_bindir}/bscalc
+%{_mandir}/man1/bscalc.1*
+%endif
+
 %changelog
+* Sat Jul 25 2020 yang_zhuang_zhuang <yangzhuangzhuang1@huawei.com> - 2.3-1
+- Type:enhancement
+- ID:NA
+- SUG:NA
+- DESC:update version to 2.3
+
 * Sat Mar 21 2020 openEuler Buildteam <buildteam@openeuler.org> - 1.4-8
 - fixbug in remove python2 support for package