diff --git a/.gitignore b/.gitignore
index 52b0dbb..32a028d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /nauty26r5.tar.gz
+/nauty26r7.tar.gz
diff --git a/nauty-autotoolization.patch b/nauty-autotoolization.patch
index a3fd73e..e25c25b 100644
--- a/nauty-autotoolization.patch
+++ b/nauty-autotoolization.patch
@@ -39,166 +39,23 @@ Last-Update: 2016-03-19
  $2=1
  else
  $2=0
-@@ -58,82 +75,89 @@
+@@ -57,10 +74,15 @@
+ 
  dnl Checks for system features
  AC_CANONICAL_HOST
- 
--dnl Checks for C compiler and sets CFLAGS if not set by user
--user_cflags="$CFLAGS"
 +AC_PATH_PROG([HELP2MAN],[help2man])
+ 
+ dnl Checks for C compiler and sets CFLAGS if not set by user
+ user_cflags="$CFLAGS"
  AC_PROG_CC
--CFLAGS=$user_cflags
 +AC_PROG_INSTALL
 +AC_PROG_LN_S
 +AC_PROG_MAKE_SET
 +LT_INIT
-+
-+dnl dnl Checks for C compiler and sets CFLAGS if not set by user
-+dnl user_cflags="$CFLAGS"
-+dnl AC_PROG_CC
-+dnl CFLAGS=$user_cflags
+ CFLAGS=$user_cflags
  MORECFLAGS=""
  dnl  we need  AC_SYS_LARGEFILE and AC_FUNC_FSEEKO
- AC_SYS_LARGEFILE
- AS_IF([test x"$ac_cv_sys_file_offset_bits" = xno],[ac_cv_sys_file_offset_bits=0],[])
- AC_SUBST(ac_cv_sys_file_offset_bits)
- 
--if test x"$user_cflags" = x"" -o x"$user_cflags" = x-m32 ; then
--  if test "$CC" = "icc" ; then
--    AC_TRY_CFLAGS([-O3],[CFLAGS="$CFLAGS -O3"]);
--    if test x"$ac_cv_try_cflags_ok" = x"no"; then
--        AC_TRY_CFLAGS([-O2],[CFLAGS="$CFLAGS -O2"],[CFLAGS="$CFLAGS -O"]);
--    fi
--  else
--    AC_TRY_CFLAGS([-O4 -Werror],[CFLAGS="$CFLAGS -O4"]);
--    if test x"$ac_cv_try_cflags_ok" = x"no"; then
--       AC_TRY_CFLAGS([-O3],[CFLAGS="$CFLAGS -O3"]);
--       if test x"$ac_cv_try_cflags_ok" = x"no"; then
--          AC_TRY_CFLAGS([-O2],[CFLAGS="$CFLAGS -O2"],[CFLAGS="$CFLAGS -O"]);
--       fi
--    fi
--  fi
-- 
--  if test "$CC" = "gcc" ; then
--      gccver=`gcc --version 2>/dev/null || echo 0.0.0`
--  else
--      gccver=0.0.0
--  fi
--
--  case "$host" in
--   *i686-apple-darwin*)
--	AC_TRY_CFLAGS([-fast],[CFLAGS="$MORECFLAGS -fast"]);;
--   *pentium*solaris*)
--	;;
--   *pentium4*)
--	AC_TRY_CFLAGS([-march=pentium4],[CFLAGS="$CFLAGS -march=pentium4"]);;
--   *pentium3*|*i686*|*athlon*)
--	AC_TRY_CFLAGS([-march=i686],[CFLAGS="$CFLAGS -march=i686"]);;
--   *pentium2*|*i586*)
--	AC_TRY_CFLAGS([-march=i586],[CFLAGS="$CFLAGS -march=i586"]);;
--   *powerpc*)
--        machtype=`/usr/bin/machine 2>/dev/null || echo unknown`
--        case "$machtype" in
--	  ppc740?)
--	     AC_TRY_CFLAGS([-mcpu=7400],[CFLAGS="$CFLAGS -mcpu=7400"])
--	     AC_TRY_CFLAGS([-mtune=7400],[CFLAGS="$CFLAGS -mtune=7400"]);;
--	  ppc745?)
--	     AC_TRY_CFLAGS([-mcpu=7450],[CFLAGS="$CFLAGS -mcpu=7450"])
--	     AC_TRY_CFLAGS([-mtune=7450],[CFLAGS="$CFLAGS -mtune=7450"])
--             case "$gccver" in
--               *\ 4.[[0-9]].[[0-9]]\ *)
--	           AC_TRY_CFLAGS([$CFLAGS -fast],
--			[MORECFLAGS="$MORECFLAGS -fast"]);;
--             esac;;
--	  ppc970)
--	     AC_TRY_CFLAGS([-mcpu=g5],[CFLAGS="$CFLAGS -mcpu=g5"])
--	     AC_TRY_CFLAGS([-mtune=g5],[CFLAGS="$CFLAGS -mtune=g5"])
--	     AC_TRY_CFLAGS([-fast],[CFLAGS="$MORECFLAGS -fast"]);;
--          *)
--	     AC_TRY_CFLAGS([-mpowerpc],[CFLAGS="$CFLAGS -mpowerpc"]);;
--        esac;;
--   *osf*)
--	AC_TRY_CFLAGS([-fast],[CFLAGS="$CFLAGS -fast"]);;
--   *sparcv8*|*sparcv9*)
--	AC_TRY_CFLAGS([-msupersparc],[CFLAGS="$CFLAGS -msupersparc"])
--	if test x"$ac_cv_try_cflags_ok" = x"no"; then
--	    AC_TRY_CFLAGS([-cg92],[CFLAGS="$CFLAGS -cg92"])
--	    if test x"$ac_cv_try_cflags_ok" = x"no"; then
--		AC_TRY_CFLAGS([-xcg92],[CFLAGS="$CFLAGS -xcg92"])
--	    fi
--	fi;;
--  esac
--fi
-+dnl if test x"$user_cflags" = x"" -o x"$user_cflags" = x-m32 ; then
-+dnl   if test "$CC" = "icc" ; then
-+dnl     AC_TRY_CFLAGS([-O3],[CFLAGS="$CFLAGS -O3"]);
-+dnl     if test x"$ac_cv_try_cflags_ok" = x"no"; then
-+dnl         AC_TRY_CFLAGS([-O2],[CFLAGS="$CFLAGS -O2"],[CFLAGS="$CFLAGS -O"]);
-+dnl     fi
-+dnl   else
-+dnl     AC_TRY_CFLAGS([-O4 -Werror],[CFLAGS="$CFLAGS -O4"]);
-+dnl     if test x"$ac_cv_try_cflags_ok" = x"no"; then
-+dnl        AC_TRY_CFLAGS([-O3],[CFLAGS="$CFLAGS -O3"]);
-+dnl        if test x"$ac_cv_try_cflags_ok" = x"no"; then
-+dnl           AC_TRY_CFLAGS([-O2],[CFLAGS="$CFLAGS -O2"],[CFLAGS="$CFLAGS -O"]);
-+dnl        fi
-+dnl     fi
-+dnl   fi
-+dnl
-+dnl   if test "$CC" = "gcc" ; then
-+dnl       gccver=`gcc --version 2>/dev/null || echo 0.0.0`
-+dnl   else
-+dnl       gccver=0.0.0
-+dnl   fi
-+dnl
-+dnl   case "$host" in
-+dnl    *i686-apple-darwin*)
-+dnl 	AC_TRY_CFLAGS([-fast],[CFLAGS="$MORECFLAGS -fast"]);;
-+dnl    *pentium*solaris*)
-+dnl 	;;
-+dnl    *pentium4*)
-+dnl 	AC_TRY_CFLAGS([-march=pentium4],[CFLAGS="$CFLAGS -march=pentium4"]);;
-+dnl    *pentium3*|*i686*|*athlon*)
-+dnl 	AC_TRY_CFLAGS([-march=i686],[CFLAGS="$CFLAGS -march=i686"]);;
-+dnl    *pentium2*|*i586*)
-+dnl 	AC_TRY_CFLAGS([-march=i586],[CFLAGS="$CFLAGS -march=i586"]);;
-+dnl    *powerpc*)
-+dnl         machtype=`/usr/bin/machine 2>/dev/null || echo unknown`
-+dnl         case "$machtype" in
-+dnl 	  ppc740?)
-+dnl 	     AC_TRY_CFLAGS([-mcpu=7400],[CFLAGS="$CFLAGS -mcpu=7400"])
-+dnl 	     AC_TRY_CFLAGS([-mtune=7400],[CFLAGS="$CFLAGS -mtune=7400"]);;
-+dnl 	  ppc745?)
-+dnl 	     AC_TRY_CFLAGS([-mcpu=7450],[CFLAGS="$CFLAGS -mcpu=7450"])
-+dnl 	     AC_TRY_CFLAGS([-mtune=7450],[CFLAGS="$CFLAGS -mtune=7450"])
-+dnl              case "$gccver" in
-+dnl                *\ 4.[[0-9]].[[0-9]]\ *)
-+dnl 	           AC_TRY_CFLAGS([$CFLAGS -fast],
-+dnl 			[MORECFLAGS="$MORECFLAGS -fast"]);;
-+dnl              esac;;
-+dnl 	  ppc970)
-+dnl 	     AC_TRY_CFLAGS([-mcpu=g5],[CFLAGS="$CFLAGS -mcpu=g5"])
-+dnl 	     AC_TRY_CFLAGS([-mtune=g5],[CFLAGS="$CFLAGS -mtune=g5"])
-+dnl 	     AC_TRY_CFLAGS([-fast],[CFLAGS="$MORECFLAGS -fast"]);;
-+dnl           *)
-+dnl 	     AC_TRY_CFLAGS([-mpowerpc],[CFLAGS="$CFLAGS -mpowerpc"]);;
-+dnl         esac;;
-+dnl    *osf*)
-+dnl 	AC_TRY_CFLAGS([-fast],[CFLAGS="$CFLAGS -fast"]);;
-+dnl    *sparcv8*|*sparcv9*)
-+dnl 	AC_TRY_CFLAGS([-msupersparc],[CFLAGS="$CFLAGS -msupersparc"])
-+dnl 	if test x"$ac_cv_try_cflags_ok" = x"no"; then
-+dnl 	    AC_TRY_CFLAGS([-cg92],[CFLAGS="$CFLAGS -cg92"])
-+dnl 	    if test x"$ac_cv_try_cflags_ok" = x"no"; then
-+dnl 		AC_TRY_CFLAGS([-xcg92],[CFLAGS="$CFLAGS -xcg92"])
-+dnl 	    fi
-+dnl 	fi;;
-+dnl   esac
-+dnl fi
- 
- echo CFLAGS=$CFLAGS
- echo MORECFLAGS=$MORECFLAGS
-@@ -431,6 +455,26 @@
+@@ -434,6 +456,26 @@
  edit_msg="++++++ This file is automatically generated, don't edit it by hand! ++++++"
  AC_SUBST(edit_msg)
  
@@ -206,7 +63,7 @@ Last-Update: 2016-03-19
 -    naututil.h:naututil-h.in gtools.h:gtools-h.in)
 +dnl Checks for linker script support
 +gl_LD_VERSION_SCRIPT
-+
+ 
 +dnl Checks for libraries
 +## pkg-config
 +PKG_PROG_PKG_CONFIG
@@ -225,7 +82,7 @@ Last-Update: 2016-03-19
 +	naututil.h:naututil-h.in
 +	gtools.h:gtools-h.in
 +	])
- 
++
 +AC_OUTPUT
 --- /dev/null
 +++ b/Makefile.am
@@ -1471,9 +1328,9 @@ Last-Update: 2016-03-19
 +])
 --- a/traces.h
 +++ b/traces.h
-@@ -22,6 +22,9 @@
-  *       28-Jan-16 : version ready for nauty and Traces v.2.6 distribution    *
-  *****************************************************************************/
+@@ -23,6 +23,9 @@
+  *       12-Jul-16 : bug correction (reaching degree 2 vertices)              *
+ *****************************************************************************/
  
 +#ifndef  _TRACES_H_    /* only process this file once */
 +#define  _TRACES_H_
@@ -1481,7 +1338,7 @@ Last-Update: 2016-03-19
  #include "gtools.h"
  #include "schreier.h" 
  
-@@ -61,3 +64,5 @@
+@@ -62,3 +65,5 @@ extern void Traces(sparsegraph*,int*,int
  				   TracesStats*,sparsegraph*);									
  extern void refine_tr(sparsegraph*,int*,int*,int*,int*,TracesOptions*);		
  extern void traces_freedyn(void);
diff --git a/nauty-popcnt.patch b/nauty-popcnt.patch
index 5235107..5daf3a6 100644
--- a/nauty-popcnt.patch
+++ b/nauty-popcnt.patch
@@ -101,7 +101,7 @@ Last-Update: 2016-04-20
  AS_IF([test "x$popcntarg" = "xnotgiven" -o "x$enable_popcnt" = "xyes"], [
  have_hwpopcnt=0
  test -e /proc/cpuinfo && grep -i popcnt /proc/cpuinfo >/dev/null && have_hwpopcnt=1 
-@@ -329,7 +332,6 @@ AC_LINK_IFELSE([AC_LANG_SOURCE([#include
+@@ -329,7 +333,6 @@ AC_LINK_IFELSE([AC_LANG_SOURCE([#include
  main(){unsigned int x; x = _mm_popcnt_u64(x);}])], [have_mmpop64=1], [have_mmpop64=0])
  AC_MSG_RESULT($have_mmpop64)
  ], [
@@ -109,7 +109,7 @@ Last-Update: 2016-04-20
  AC_MSG_CHECKING(if __builtin_popcount() is supported)
  AC_LINK_IFELSE([AC_LANG_SOURCE([main(){unsigned int x; x = __builtin_popcount(x);}])], [have_popcnt=1], [have_popcnt=0])
  AC_MSG_RESULT($have_popcnt)
-@@ -348,6 +350,7 @@ AC_SUBST(have_popcntl)
+@@ -348,6 +351,7 @@ AC_SUBST(have_popcntl)
  AC_SUBST(have_popcntll)
  AC_SUBST(have_mmpop32)
  AC_SUBST(have_mmpop64)
diff --git a/nauty.spec b/nauty.spec
index 2d523a8..e058605 100644
--- a/nauty.spec
+++ b/nauty.spec
@@ -1,4 +1,4 @@
-%global nautybasever    2.6r5
+%global nautybasever    2.6r7
 %global nautytarver     %(tr -d . <<< %{nautybasever})
 
 Name:           nauty
@@ -125,6 +125,9 @@ make check
 %{_libdir}/pkgconfig/%{name}.pc
 
 %changelog
+* Sat Sep 10 2016 Jerry James <loganjerry@gmail.com> - 2.6.7-1
+- New upstream version
+
 * Thu Apr 21 2016 Jerry James <loganjerry@gmail.com> - 2.6.5-1
 - New upstream version
 
diff --git a/sources b/sources
index f996f5c..8a5d108 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-91b03a7b069962e94fc9aac8831ce8d2  nauty26r5.tar.gz
+b2b18e03ea7698db3fbe06c5d76ad8fe  nauty26r7.tar.gz