diff --git a/sources b/sources
index 8afe937..e96d62e 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (z3-4.11.2.tar.gz) = be2573d38c0e50b46fcb025d50335e016769fdeab3c26f5dc2a13102fae889d23039258ea8d38de3f53daa4cf073704d8639ac291e781a74633194adedaae21a
+SHA512 (z3-4.12.0.tar.gz) = 53a51c8304fa4356d13293f68b14d9d9eef57a0771c6698d38aea5fac62c4e52c41ff003cb6d771a32645d2aa4ef59be5f792f2efbee927d06ac8280094976e5
diff --git a/z3-data-race.patch b/z3-data-race.patch
deleted file mode 100644
index 547b48c..0000000
--- a/z3-data-race.patch
+++ /dev/null
@@ -1,10 +0,0 @@
---- z3-z3-4.11.2/src/solver/parallel_tactic.cpp.orig	2022-09-03 16:47:12.000000000 -0600
-+++ z3-z3-4.11.2/src/solver/parallel_tactic.cpp	2023-01-08 21:39:29.169670155 -0700
-@@ -460,6 +460,7 @@ private:
-             conquer->get_model(mdl);
-         }
-         else {
-+            std::lock_guard<std::mutex> lock(m_mutex);
-             s.get_solver().get_model(mdl);
-         }
-         if (mdl) {
diff --git a/z3-uninit.patch b/z3-uninit.patch
deleted file mode 100644
index fc3623c..0000000
--- a/z3-uninit.patch
+++ /dev/null
@@ -1,10 +0,0 @@
---- z3-z3-4.11.2/src/sat/sat_lookahead.cpp.orig	2022-09-03 16:47:12.000000000 -0600
-+++ z3-z3-4.11.2/src/sat/sat_lookahead.cpp	2023-01-06 15:09:19.198322817 -0700
-@@ -1001,6 +1001,7 @@ namespace sat {
-         m_inconsistent = false;
-         m_qhead = 0;
-         m_bstamp_id = 0;
-+        m_istamp_id = 0;
- 
-         for (unsigned i = 0; i < m_num_vars; ++i) {
-             init_var(i);
diff --git a/z3.spec b/z3.spec
index 9328599..67526af 100644
--- a/z3.spec
+++ b/z3.spec
@@ -15,8 +15,8 @@
 %bcond_with test
 
 Name:           z3
-Version:        4.11.2
-Release:        2%{?dist}
+Version:        4.12.0
+Release:        1%{?dist}
 Summary:        Satisfiability Modulo Theories (SMT) solver
 
 License:        MIT
@@ -24,10 +24,6 @@ URL:            https://github.com/Z3Prover/z3
 Source0:        https://github.com/Z3Prover/z3/archive/%{name}-%{version}.tar.gz
 # Change the way python finds the shared object; see bz 1910923
 Patch0:         %{name}-python.patch
-# Fix use of an uninitialized variable
-Patch1:         %{name}-uninit.patch
-# Fix a data race that can cause a segfault; see bz 2157972
-Patch2:         %{name}-data-race.patch
 
 BuildRequires:  cmake
 BuildRequires:  doxygen
@@ -171,6 +167,9 @@ sed -e '/libz3java/s,\(System\.load\)Library("\(.*\)"),\1("%{_libdir}/z3/\2.so")
     -e "s/@MAJVER@/$majver/" \
     -i scripts/update_api.py
 
+# Turn off HTML timestamps for reproducible builds
+sed -i '/HTML_TIMESTAMP/s/YES/NO/' doc/z3api.cfg.in doc/z3code.dox
+
 %build
 export LANG=C.UTF-8
 export PYTHON=%{python3}
@@ -236,6 +235,9 @@ rm -rf %{buildroot}%{_docdir}/Z3
 mkdir -p %{buildroot}%{_mandir}/man1
 help2man -N -o %{buildroot}%{_mandir}/man1/z3.1 %{_vpath_builddir}/z3
 
+# Fix the pkgconfig file
+sed -i 's,//usr,,' %{buildroot}%{_libdir}/pkgconfig/z3.pc
+
 %if %{with test}
 %check
 export LANG="C.UTF-8"
@@ -252,7 +254,7 @@ cd -
 
 %files libs
 %license LICENSE.txt
-%{_libdir}/libz3.so.4.11*
+%{_libdir}/libz3.so.4.12*
 
 %files devel
 %{_includedir}/z3/
@@ -288,6 +290,10 @@ cd -
 %{python3_sitelib}/z3/
 
 %changelog
+* Tue Jan 17 2023 Jerry James <loganjerry@gmail.com> - 4.12.0-1
+- Version 4.12.0
+- Drop upstreamed -data-race and -uninit patches
+
 * Sun Jan  8 2023 Jerry James <loganjerry@gmail.com> - 4.11.2-2
 - Add -data-race patch to fix segfault (bz 2157972)
 - Add -uninit patch to fix use of an uninitialized value