diff --git a/.gitignore b/.gitignore
index 8ae641d..4642b65 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,5 @@
 /petsc-3.14.4.tar.gz
 /petsc-3.14.5.tar.gz
 /petsc-3.14.6.tar.gz
+/petsc-with-docs-3.15.0.tar.gz
+/petsc4py-3.15.0.tar.gz
diff --git a/petsc-3.13.0-fix_sundials_version.patch b/petsc-3.13.0-fix_sundials_version.patch
deleted file mode 100644
index 82b0d0d..0000000
--- a/petsc-3.13.0-fix_sundials_version.patch
+++ /dev/null
@@ -1,13 +0,0 @@
---- a/config/BuildSystem/config/packages/sundials.orig.py	2019-09-30 01:36:08.000000000 +0200
-+++ b/config/BuildSystem/config/packages/sundials.py	2020-04-04 16:15:52.074244560 +0200
-@@ -3,8 +3,8 @@
- class Configure(config.package.GNUPackage):
-   def __init__(self, framework):
-     config.package.GNUPackage.__init__(self, framework)
--    self.version      = '2.5.0'
--    self.maxversion   = '2.5.100000'
-+    self.version      = '5.2.0'
-+    self.maxversion   = '5.2.000000'
-     self.versionname  = 'SUNDIALS_PACKAGE_VERSION'
-     self.download     = ['http://ftp.mcs.anl.gov/pub/petsc/externalpackages/sundials-'+self.version+'p1.tar.gz']
-     self.functions    = ['CVSpgmr']
diff --git a/petsc-3.15.0-fix_sundials_version.patch b/petsc-3.15.0-fix_sundials_version.patch
new file mode 100644
index 0000000..43feb40
--- /dev/null
+++ b/petsc-3.15.0-fix_sundials_version.patch
@@ -0,0 +1,13 @@
+--- a/config/BuildSystem/config/packages/sundials2.orig.py	2019-09-30 01:36:08.000000000 +0200
++++ b/config/BuildSystem/config/packages/sundials2.py	2020-04-04 16:15:52.074244560 +0200
+@@ -3,8 +3,8 @@
+ class Configure(config.package.GNUPackage):
+   def __init__(self, framework):
+     config.package.GNUPackage.__init__(self, framework)
+-    self.version          = '2.5.0'
+-    self.maxversion       = '2.5.100000'
++    self.version          = '5.2.0'
++    self.maxversion       = '5.7.000000'
+     self.versionname      = 'SUNDIALS_PACKAGE_VERSION'
+     self.download         = ['http://ftp.mcs.anl.gov/pub/petsc/externalpackages/sundials-'+self.version+'p1.tar.gz']
+     self.downloaddirnames = ['sundials']
diff --git a/petsc.spec b/petsc.spec
index b4e49bb..ca72474 100644
--- a/petsc.spec
+++ b/petsc.spec
@@ -8,7 +8,7 @@
 %bcond_without pycheck
 %endif
 %global pymodule_name petsc4py
-%global pymodule_version 3.14.1
+%global pymodule_version 3.15.0
 #
 
 ## Debug builds ?
@@ -33,13 +33,8 @@
 %bcond_without blas64
 %endif
 
-%if 0%{?fedora} >= 33
 %global blaslib flexiblas
 %global blasvar %{nil}
-%else
-%global blaslib openblas
-%global blasvar p
-%endif
 
 #
 ## PETSC looks incompatible with serial MUMPS
@@ -52,11 +47,9 @@
 #
 
 ## Suitesparse
-## Currently, suitesparse-5.4.0 is available on Fedora 32+, but this version of PETSc needs the 5.6.0 at least
+## This version of PETSc needs the 5.6.0 at least
 %bcond_with suitesparse
-%if 0%{?fedora} && 0%{?fedora} >= 32
 %bcond_with suitesparse64
-%endif
 #
 
 ## SuperLUDIST needs parmetis
@@ -208,7 +201,8 @@
  %if %{with python} \
   --with-python=1 \\\
   --with-python-exec=%{__python3} \\\
-  --download-petsc4py=1 \\\
+  --with-petsc4py=1 \\\
+  --with-petsc4py-test-np="`/usr/bin/getconf _NPROCESSORS_ONLN`" \\\
  %endif \
  %if 0%{?fedora} \
   --with-cxxlib-autodetect=0 \\\
@@ -276,15 +270,16 @@
   
 %global mpichversion %(rpm -qi mpich | awk -F': ' '/Version/ {print $2}')
 %global openmpiversion %(rpm -qi openmpi | awk -F': ' '/Version/ {print $2}')
-%global releasever 3.14
+%global releasever 3.15
 
 Name:    petsc
 Summary: Portable Extensible Toolkit for Scientific Computation
-Version: %{releasever}.6
+Version: %{releasever}.0
 Release: 1%{?dist}
 License: BSD
 URL:     https://www.mcs.anl.gov/petsc
-Source0: https://www.mcs.anl.gov/petsc/mirror/release-snapshots/petsc-%{version}.tar.gz
+Source0: https://ftp.mcs.anl.gov/pub/petsc/release-snapshots/petsc-with-docs-%{version}.tar.gz
+Source1: https://ftp.mcs.anl.gov/pub/petsc/release-snapshots/petsc4py-%{version}.tar.gz
 
 ## Remove rpath flags
 Patch0:  %{name}-3.11-no-rpath.patch
@@ -297,7 +292,7 @@ Patch2:  %{name}-3.14-hypre_2.11.2_reverting.patch
 
 Patch3:  %{name}-3.13-fix_mumps_includes.patch
 Patch4:  %{name}-3.13.0-fix_metis64.patch
-Patch5:  %{name}-3.13.0-fix_sundials_version.patch
+Patch5:  %{name}-3.15.0-fix_sundials_version.patch
 Patch6:  %{name}-3.14.1-fix_pkgconfig_file.patch
 
 Patch7:  %{name}-3.4.1-avoid_fake_MKL_detection.patch
@@ -568,6 +563,12 @@ Portable Extensible Toolkit for Scientific Computation (developer files).
 
 %prep
 %setup -qc
+%if %{with python}
+%setup -q -T -D -a 1
+cp -a petsc4py-%{version}/* %{name}-%{version}/
+rm -rf %{name}-%{version}/*.egg-info
+rm -rf petsc4py-%{version}
+%endif
 
 pushd %{name}-%{version}
 
@@ -697,15 +698,13 @@ pushd buildopenmpi_dir
 RPM_BUILD_NCPUS="`%{_bindir}/getconf _NPROCESSORS_ONLN`"
 make \
  V=1 MAKE_NP=$RPM_BUILD_NCPUS PETSC_DIR=%{_builddir}/%{name}-%{version}/buildopenmpi_dir PETSC_ARCH=%{_arch} all
-
+ 
 %if %{with python}
-cd %{_arch}/externalpackages/petsc4py
 export PETSC_ARCH=%{_arch}
-export PETSC_DIR=../../../
+export PETSC_DIR=./
 %py3_build
 unset PETSC_ARCH
 unset PETSC_DIR
-cd ../../..
 %endif
 
 %{_openmpi_unload}
@@ -737,17 +736,15 @@ pushd buildmpich_dir
 RPM_BUILD_NCPUS="`%{_bindir}/getconf _NPROCESSORS_ONLN`"
 make \
  V=1 MAKE_NP=$RPM_BUILD_NCPUS PETSC_DIR=%{_builddir}/%{name}-%{version}/buildmpich_dir PETSC_ARCH=%{_arch} all
- 
+
 %if %{with python}
-cd %{_arch}/externalpackages/petsc4py
 export PETSC_ARCH=%{_arch}
-export PETSC_DIR=../../../
+export PETSC_DIR=./
 %py3_build
 unset PETSC_ARCH
 unset PETSC_DIR
-cd ../../..
 %endif
- 
+
 %{_mpich_unload}
 popd
 %endif
@@ -843,11 +840,9 @@ sed -e 's|${PETSC_DIR}/${PETSC_ARCH}/lib|${PETSC_DIR}/%{_lib}/openmpi/lib|g' -i
 sed -e 's|${PETSC_DIR}/${PETSC_ARCH}/lib|${PETSC_DIR}/%{_lib}/openmpi/lib|g' -i %{buildroot}$MPI_LIB/%{name}/conf/rules
 
 %if %{with python}
-pushd %{_arch}/externalpackages/petsc4py
 export PETSC_ARCH=%{_arch}
-export PETSC_DIR=../../../
+export PETSC_DIR=./
 %py3_install
-popd
 
 # Install petsc4py files into MPI directories
 %if 0%{?rhel}
@@ -899,11 +894,10 @@ sed -e 's|${PETSC_DIR}/${PETSC_ARCH}/lib|${PETSC_DIR}/%{_lib}/mpich/lib|g' -i %{
 sed -e 's|${PETSC_DIR}/${PETSC_ARCH}/lib|${PETSC_DIR}/%{_lib}/mpich/lib|g' -i %{buildroot}$MPI_LIB/%{name}/conf/rules
 
 %if %{with python}
-pushd %{_arch}/externalpackages/petsc4py
 export PETSC_ARCH=%{_arch}
-export PETSC_DIR=../../../
+export PETSC_DIR=./
 %py3_install
-popd
+
 # Install petsc4py files into MPI directories
 %if 0%{?rhel}
 MPI_PYTHON3_SITEARCH=%{python3_sitearch}/mpich
@@ -933,12 +927,6 @@ popd
 cp -a %{name}-%{version}/docs/* %{buildroot}%{_pkgdocdir}
 #
 
-%ldconfig_scriptlets
-
-%if %{with arch64}
-%ldconfig_scriptlets -n petsc64
-%endif
-
 %check
 
 %if %{with openmpi}
@@ -962,9 +950,9 @@ xvfb-run -a make all test -C buildopenmpi_dir V=1
 
 %if %{with python}
 %if %{with pycheck}
-pushd buildopenmpi_dir/%{_arch}/externalpackages/petsc4py
+pushd buildopenmpi_dir
 export PETSC_ARCH=%{_arch}
-export PETSC_DIR=../../../
+export PETSC_DIR=./
 %if 0%{?rhel}
 MPI_PYTHON3_SITEARCH=%{python3_sitearch}/openmpi
 %endif
@@ -999,9 +987,9 @@ xvfb-run -a make all test -C buildmpich_dir V=1
 
 %if %{with python}
 %if %{with pycheck}
-pushd buildmpich_dir/%{_arch}/externalpackages/petsc4py
+pushd buildmpich_dir
 export PETSC_ARCH=%{_arch}
-export PETSC_DIR=../../../
+export PETSC_DIR=./
 %if 0%{?rhel}
 MPI_PYTHON3_SITEARCH=%{python3_sitearch}/mpich
 %endif
@@ -1130,6 +1118,10 @@ xvfb-run -a make all test -C build64 V=1 MPIEXEC='%{_builddir}/%{name}-%{version
 %endif
 
 %changelog
+* Fri Apr 02 2021 Antonio Trande <sagitter@fedoraproject.org> - 3.15.0-1
+- Release 3.15.0
+- PETSc4py 3.15.0
+
 * Fri Apr 02 2021 Antonio Trande <sagitter@fedoraproject.org> - 3.14.6-1
 - Release 3.14.6
 
@@ -1138,7 +1130,7 @@ xvfb-run -a make all test -C build64 V=1 MPIEXEC='%{_builddir}/%{name}-%{version
 
 * Sun Feb 07 2021 Antonio Trande <sagitter@fedoraproject.org> - 3.14.4-1
 - Release 3.14.4
-- Release petsc4py-3.14.1
+- Release PETSc4py-3.14.1
 
 * Tue Feb 02 2021 Antonio Trande <sagitter@fedoraproject.org> - 3.14.2-5
 - Rebuild for OpenMPI-4.1.0 and MPICH-3.4.1
@@ -1148,11 +1140,11 @@ xvfb-run -a make all test -C build64 V=1 MPIEXEC='%{_builddir}/%{name}-%{version
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
 
 * Sun Dec 13 2020 Antonio Trande <sagitter@fedoraproject.org> - 3.14.2-3
-- Obsolete the stand-alone petsc4py packages
-- This package now provides petsc4py/python-petsc rpms
+- Obsolete the stand-alone PETSc4py packages
+- This package now provides PETSc4py/python-petsc rpms
 
 * Wed Dec 09 2020 Antonio Trande <sagitter@fedoraproject.org> - 3.14.2-2
-- Compile petsc4py code inside
+- Compile PETSc4py code inside
 
 * Sat Dec 05 2020 Antonio Trande <sagitter@fedoraproject.org> - 3.14.2-1
 - Release 3.14.2
diff --git a/sources b/sources
index e3a87b4..d13c2b9 100644
--- a/sources
+++ b/sources
@@ -1 +1,2 @@
-SHA512 (petsc-3.14.6.tar.gz) = 9766e164446ac5a69b8bf761a0e8a235b1a2b85ed9c96a7fd59e668ae4cceb9d9559a38b175b4aa9747e78d7b44d0018a3c02748dcd3d783d28f861f8382d44c
+SHA512 (petsc-with-docs-3.15.0.tar.gz) = d141f98742b3a831d2efede7cf3c6ed12380a052c4243dcad2a770455c15b1fbd0ecc3191368ffd110491f3b239af140f7a0ebab87ceb439eb497336e0cf6f2c
+SHA512 (petsc4py-3.15.0.tar.gz) = a5200967b39637171fa9426a639b37c474ee893450da53c882648d85c5d79f694def505a3dec5dca094629eda1ff7ba5572121d61372b1d74e52f277f007ff7f