diff --git a/tcl-core8.6.16-src.tar.gz b/tcl-core8.6.17-src.tar.gz
similarity index 32%
rename from tcl-core8.6.16-src.tar.gz
rename to tcl-core8.6.17-src.tar.gz
index a8dbad2fdb93ee2e72b94a9781db5bfc8bd64fdd..67330a9947002c832709b2e398cdc131be538eac 100644
--- a/tcl-core8.6.16-src.tar.gz
+++ b/tcl-core8.6.17-src.tar.gz
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:3b371386a9a928eecdbf263bcab7d6a531e620ca3fbab4fdeeb3d6a9a56f38e9
-size 7022932
+oid sha256:a1d8cbe44b38beaa29fc2130c4e7b79b8bf02e2bcc028ffefd7a25a2122202a0
+size 7030881
diff --git a/tcl.spec b/tcl.spec
index 35dd26a44dfc5f9210055a842c811e592c4e9027..9bf0b63f895ea873236ecc8f10bab33a249ff47d 100644
--- a/tcl.spec
+++ b/tcl.spec
@@ -1,18 +1,16 @@
-%define MAJOR 8.6
-
 Name:          tcl
-Version:       8.6.16
-Release:       2
+Version:       8.6.17
+Release:       1
 Epoch:         1
 Summary:       The Tool Command Language implementation
 License:       TCL AND GPL-3.0-or-later WITH bison-exception-2.2 AND BSD-3-Clause
-URL:           https://sourceforge.net/projects/tcl/
+URL:           https://www.tcl-lang.org/
 Source0:       https://downloads.sourceforge.net/sourceforge/tcl/tcl-core%{version}-src.tar.gz
 Source1:       macros.tcl
 Source2:       tcl.attr
 
 BuildRequires: autoconf zlib-devel systemtap-sdt-devel gcc
-Provides:      tcl(abi) = %{MAJOR}
+Provides:      tcl(abi) = %{version_major_minor}
 Obsoletes:     tcl-tcldict <= %{version}
 Provides:      tcl-tcldict = %{version}
 
@@ -57,22 +55,22 @@ pushd unix
 autoconf
 %configure --enable-threads --enable-symbols --enable-shared --enable-dtrace
 %ifnarch loongarch64
-%make_build CFLAGS="%{optflags}" TCL_LIBRARY=%{_datadir}/%{name}%{MAJOR}
+%make_build CFLAGS="%{optflags}" TCL_LIBRARY=%{_datadir}/%{name}%{version_major_minor}
 %else
-%make_build CFLAGS="-Wl,--whole-archive -lpthread -Wl,--no-whole-archive" TCL_LIBRARY=%{_datadir}/%{name}%{MAJOR}
+%make_build CFLAGS="-Wl,--whole-archive -lpthread -Wl,--no-whole-archive" TCL_LIBRARY=%{_datadir}/%{name}%{version_major_minor}
 %endif
 popd
 
 %install
 pushd unix
-make INSTALL_ROOT=$RPM_BUILD_ROOT TCL_LIBRARY=%{_datadir}/%{name}%{MAJOR} install
+make INSTALL_ROOT=$RPM_BUILD_ROOT TCL_LIBRARY=%{_datadir}/%{name}%{version_major_minor} install
 popd
 
-ln -s tclsh%{MAJOR} %{buildroot}%{_bindir}/tclsh
-ln -s lib%{name}%{MAJOR}.so $RPM_BUILD_ROOT%{_libdir}/lib%{name}.so
+ln -s tclsh%{version_major_minor} %{buildroot}%{_bindir}/tclsh
+ln -s lib%{name}%{version_major_minor}.so $RPM_BUILD_ROOT%{_libdir}/lib%{name}.so
 
-mkdir -p $RPM_BUILD_ROOT%{_libdir}/%{name}%{MAJOR}
-ln -s %{_libdir}/%{name}Config.sh $RPM_BUILD_ROOT%{_libdir}/%{name}%{MAJOR}/%{name}Config.sh
+mkdir -p $RPM_BUILD_ROOT%{_libdir}/%{name}%{version_major_minor}
+ln -s %{_libdir}/%{name}Config.sh $RPM_BUILD_ROOT%{_libdir}/%{name}%{version_major_minor}/%{name}Config.sh
 
 mv license.terms COPYING
 mkdir -p $RPM_BUILD_ROOT%{_includedir}/%{name}-private/generic
@@ -88,7 +86,7 @@ for header in *.h ; do
 done
 )
 sed -i -e "s|$PWD/unix|%{_libdir}|; s|$PWD|%{_includedir}/%{name}-private|" %{buildroot}/%{_libdir}/%{name}Config.sh
-rm -rf %{buildroot}/%{_datadir}/%{name}%{MAJOR}/ldAix
+rm -rf %{buildroot}/%{_datadir}/%{name}%{version_major_minor}/ldAix
 
 install -D -m644 %{S:1} %{buildroot}%{_rpmmacrodir}/macros.tcl
 install -D -m644 %{S:2} %{buildroot}%{_fileattrsdir}/tcl.attr
@@ -102,28 +100,31 @@ popd
 %license COPYING
 %doc README.md changes
 %{_bindir}/tclsh*
-%dir %{_libdir}/%{name}%{MAJOR}
-%{_datadir}/%{name}%{MAJOR}
+%dir %{_libdir}/%{name}%{version_major_minor}
+%{_datadir}/%{name}%{version_major_minor}
 %{_datadir}/%{name}8
-%{_libdir}/lib%{name}%{MAJOR}.so
-%exclude %{_datadir}/%{name}%{MAJOR}/tclAppInit.c
+%{_libdir}/lib%{name}%{version_major_minor}.so
+%exclude %{_datadir}/%{name}%{version_major_minor}/tclAppInit.c
 %{_rpmmacrodir}/macros.tcl
 %{_fileattrsdir}/tcl.attr
 
 %files devel
 %{_includedir}/*
-%{_libdir}/lib%{name}stub%{MAJOR}.a
+%{_libdir}/lib%{name}stub%{version_major_minor}.a
 %{_libdir}/lib%{name}.so
 %{_libdir}/%{name}Config.sh
 %{_libdir}/%{name}ooConfig.sh
-%{_libdir}/%{name}%{MAJOR}/%{name}Config.sh
+%{_libdir}/%{name}%{version_major_minor}/%{name}Config.sh
 %{_libdir}/pkgconfig/tcl.pc
-%{_datadir}/%{name}%{MAJOR}/tclAppInit.c
+%{_datadir}/%{name}%{version_major_minor}/tclAppInit.c
 
 %files help
 %{_mandir}/man?/*
 
 %changelog
+* Sat Oct 25 2025 Funda Wang <fundawang@yeah.net> - 1:8.6.17-1
+- update to 8.6.17
+
 * Sat Aug 02 2025 Funda Wang <fundawang@yeah.net> - 1:8.6.16-2
 - add tcl.attr to generate 'tcl(abi)' requires automatically