diff --git a/mono.spec b/mono.spec
index 14cf125..3f4351c 100644
--- a/mono.spec
+++ b/mono.spec
@@ -16,25 +16,20 @@
 %endif
 
 Name:           mono
-Version:        4.0.5
+Version:        4.2.1
 Release:        1%{?dist}
 Summary:        Cross-platform, Open Source, .NET development framework
 
 Group:          Development/Languages
 License:        MIT
 URL:            http://www.mono-project.com
-Source0:        http://download.mono-project.com/sources/mono/mono-%{version}.1.tar.bz2
+Source0:        http://download.mono-project.com/sources/mono/mono-%{version}.102.tar.bz2
 # This key was generated by Tom "spot" Callaway <tcallawa@redhat.com> on Dec 1, 2009
 # by running the following command:
 # sn -k mono.snk
 # You should not regenerate this unless you have a really, really, really good reason.
 Source1:        mono.snk
 Patch0:         mono-4.0.0-ignore-reference-assemblies.patch
-# https://github.com/mono/mono/commit/f6294778fe4f5a90bd7b7b592bd8fa359d299e1e
-Patch1:         mono-4.0.2-s390x.patch
-Patch2:         mono-4.0.2-ppc64.patch
-Patch3:         mono-4.0.2-tz.patch
-Patch4:         mono-4.0.4-swap.patch
 
 BuildRequires:  bison
 BuildRequires:  gcc-c++
@@ -45,11 +40,6 @@ BuildRequires:  pkgconfig
 BuildRequires:  valgrind-devel
 BuildRequires:  zlib-devel
 
-# http://www.mono-project.com/docs/about-mono/releases/4.0.0/#npgsql
-Obsoletes:      mono-data-postgresql
-# http://www.mono-project.com/docs/about-mono/releases/4.0.0/#entityframework
-Obsoletes:      mono-entityframework
-
 # Yes, mono actually depends on itself, because
 # we deleted the bootstrapping binaries. If you
 # need to bootstrap mono, comment out this BuildRequires
@@ -276,12 +266,6 @@ Development file for monodoc
 %prep
 %setup -q -n %{name}-%{version}
 %patch0 -p1
-%patch1 -p1
-%patch2 -p1
-%patch3 -p1
-%patch4 -p1
-# modifications for Mono 4
-sed -i "s#mono/2.0#mono/4.5#g" data/mono-nunit.pc.in
 
 # Add undeclared Arg
 sed -i "61a #define ARG_MAX     _POSIX_ARG_MAX" mono/io-layer/wapi_glob.h
@@ -357,7 +341,7 @@ rm -f %{buildroot}%{_libdir}/pkgconfig/mono-nunit.pc
 %postun devel -p /sbin/ldconfig
 
 %files core -f mcs.lang
-%doc AUTHORS COPYING.LIB ChangeLog NEWS README.md
+%doc COPYING.LIB ChangeLog NEWS README.md
 %{_bindir}/mono
 %{_bindir}/mono-test-install
 %{_bindir}/mono-gdb.py
@@ -472,8 +456,8 @@ rm -f %{buildroot}%{_libdir}/pkgconfig/mono-nunit.pc
 %{_sysconfdir}/pki/mono/
 %{_bindir}/mono-api-info
 %{_monodir}/4.5/mono-api-info.exe
-%{_monodir}/4.5/symbolicate.exe
-%{_monodir}/4.5/symbolicate.exe.mdb
+%mono_bin mono-symbolicate
+%gac_dll SMDiagnostics
 %mono_bin xbuild
 %{_monodir}/4.5/xbuild.rsp
 %mono_bin genxs
@@ -526,8 +510,10 @@ rm -f %{buildroot}%{_libdir}/pkgconfig/mono-nunit.pc
 %{_mandir}/man1/mono-cil-strip.1.gz
 %{_mandir}/man1/monodis.1.gz
 %{_datadir}/mono-2.0/mono/cil/cil-opcodes.xml
+%{_datadir}/mono-2.0/mono/profiler/mono-profiler-log.suppression
 %{_mandir}/man1/monolinker.1.gz
 %{_mandir}/man1/mono-shlib-cop.1.gz
+%{_mandir}/man1/mono-symbolicate.1.gz
 %{_mandir}/man1/mono-xmltool.1.gz
 %{_mandir}/man1/monop.1.gz
 %{_mandir}/man1/permview.1.gz
@@ -624,6 +610,7 @@ rm -f %{buildroot}%{_libdir}/pkgconfig/mono-nunit.pc
 %gac_dll System.ServiceModel
 %gac_dll System.ServiceModel.Activation
 %gac_dll System.ServiceModel.Discovery
+%gac_dll System.ServiceModel.Internals
 %gac_dll System.ServiceModel.Routing
 %gac_dll System.ServiceModel.Web
 
@@ -745,6 +732,9 @@ rm -f %{buildroot}%{_libdir}/pkgconfig/mono-nunit.pc
 %{_libdir}/pkgconfig/monodoc.pc
 
 %changelog
+* Tue Nov 17 2015 Claudio Rodrigo Pereyra Diaz <elsupergomez@fedoraproject.org> - 4.2.1-1
+- Update to 4.2.1.102 Cycle 6
+
 * Thu Nov 12 2015 Claudio Rodrigo Pereyra Diaz <elsupergomez@fedoraproject.org> - 4.0.5-1
 - Update to 4.0.5.1 Cycle 5 – Service Release 5
 
diff --git a/sources b/sources
index 79b7df4..d12429d 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-2ebdc1859cdc03d408684779503691dc  mono-4.0.5.1.tar.bz2
+74f92eccf51e59fb626bbdd39fa89229  mono-4.2.1.102.tar.bz2