diff --git a/CMakeLists.txt b/CMakeLists.txt
index a730ced3dd..a4ef59cf68 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,10 +14,10 @@
 cmake_minimum_required ( VERSION 3.19 )
 
 # version of SuiteSparse:GraphBLAS
-set ( GraphBLAS_DATE "Oct 14, 2022" )
+set ( GraphBLAS_DATE "Oct 21, 2022" )
 set ( GraphBLAS_VERSION_MAJOR 7 )
 set ( GraphBLAS_VERSION_MINOR 3 )
-set ( GraphBLAS_VERSION_SUB   0 )
+set ( GraphBLAS_VERSION_SUB   1 )
 
 # GraphBLAS C API Specification version, at graphblas.org
 set ( GraphBLAS_API_DATE "Nov 15, 2021" )
@@ -266,7 +266,7 @@ endif ( )
 
 add_library ( graphblas SHARED ${GRAPHBLAS_SOURCES} )
 
-SET_TARGET_PROPERTIES ( graphblas PROPERTIES
+set_target_properties ( graphblas PROPERTIES
     VERSION ${GraphBLAS_VERSION_MAJOR}.${GraphBLAS_VERSION_MINOR}.${GraphBLAS_VERSION_SUB}
     SOVERSION ${GraphBLAS_VERSION_MAJOR}
     C_STANDARD_REQUIRED 11
@@ -286,7 +286,7 @@ if ( BUILD_GRB_STATIC_LIBRARY )
 
     add_library ( graphblas_static STATIC ${GRAPHBLAS_SOURCES} )
 
-    SET_TARGET_PROPERTIES ( graphblas_static PROPERTIES
+    set_target_properties ( graphblas_static PROPERTIES
        VERSION ${GraphBLAS_VERSION_MAJOR}.${GraphBLAS_VERSION_MINOR}.${GraphBLAS_VERSION_SUB}
        OUTPUT_NAME graphblas
        SOVERSION ${GraphBLAS_VERSION_MAJOR}
@@ -391,7 +391,7 @@ if ( DEMO )
     file ( GLOB DEMO_SOURCES "Demo/Source/*.c" )
     add_library ( graphblasdemo SHARED ${DEMO_SOURCES} )
 
-    SET_TARGET_PROPERTIES ( graphblasdemo PROPERTIES
+    set_target_properties ( graphblasdemo PROPERTIES
         VERSION ${GraphBLAS_VERSION_MAJOR}.${GraphBLAS_VERSION_MINOR}.${GraphBLAS_VERSION_SUB}
         SOVERSION ${GraphBLAS_VERSION_MAJOR}
         C_STANDARD_REQUIRED 11 )
@@ -400,7 +400,7 @@ if ( DEMO )
 
     if ( BUILD_GRB_STATIC_LIBRARY )
         add_library ( graphblasdemo_static STATIC ${DEMO_SOURCES} )
-        SET_TARGET_PROPERTIES ( graphblasdemo_static PROPERTIES
+        set_target_properties ( graphblasdemo_static PROPERTIES
             VERSION ${GraphBLAS_VERSION_MAJOR}.${GraphBLAS_VERSION_MINOR}.${GraphBLAS_VERSION_SUB}
             C_STANDARD_REQUIRED 11 )
         set_property ( TARGET graphblasdemo_static PROPERTY C_STANDARD 11 )
diff --git a/CUDA/GB_cuda_kernel.h b/CUDA/GB_cuda_kernel.h
index 2f3dc67988..b5f8ccb0bb 100644
--- a/CUDA/GB_cuda_kernel.h
+++ b/CUDA/GB_cuda_kernel.h
@@ -124,7 +124,7 @@
         GB_ADD (c, c, x_op_y) ;             /* c += x_op_y  */          \
     }
 
-    #define GB_DOT_TERMINAL( c ) GB_IF_TERMINAL_BREAK (c)
+    #define GB_DOT_TERMINAL( c ) GB_IF_TERMINAL_BREAK ( c, z )
 
     #if GB_IS_PLUS_PAIR_REAL_SEMIRING
 
diff --git a/Doc/ChangeLog b/Doc/ChangeLog
index 773c94a03c..4b209627f8 100644
--- a/Doc/ChangeLog
+++ b/Doc/ChangeLog
@@ -1,4 +1,13 @@
-Version 7.3.0, Oct 11, 2022
+Version 7.3.1, Oct 21, 2022
+
+    * workaround for Microsoft Visual Studio bug :  MSC 19.2x (in vs2019)
+        encounters a compiler bug when compiling the FIRST_FC32 and SECOND_FC32
+        binary operators.  This version adds a flag that disables those
+        methods.  The operators still work, they are just handled by the
+        slower generic methods. Thanks to Erik Welch, H. Vetinari, and others
+        in the conda-forge community for tracking this down.
+
+Version 7.3.0, Oct 14, 2022
 
     * GrB_Matrix: changes to the internal data structure
         * minor internal changes: A->nvals for sparse/hypersparse
diff --git a/Doc/GraphBLAS_UserGuide.pdf b/Doc/GraphBLAS_UserGuide.pdf
index 6405e509d3..6b7fabf63a 100644
Binary files a/Doc/GraphBLAS_UserGuide.pdf and b/Doc/GraphBLAS_UserGuide.pdf differ
diff --git a/Doc/GraphBLAS_UserGuide.tex b/Doc/GraphBLAS_UserGuide.tex
index fff532d867..322ff1f9dd 100644
--- a/Doc/GraphBLAS_UserGuide.tex
+++ b/Doc/GraphBLAS_UserGuide.tex
@@ -15455,6 +15455,13 @@ \section{Release Notes}
 
 \begin{itemize}
 
+\item Version 7.3.1 (Oct 21, 2022)
+
+    \begin{packed_itemize}
+    \item workaround for a bug in the Microsoft Visual Studio Compiler,
+        MSC 19.2x (in vs2019).
+    \end{packed_itemize}
+
 \item Version 7.3.0 (Oct 14, 2022)
 
     \begin{packed_itemize}
@@ -16121,6 +16128,9 @@ \section{Acknowledgments}
 I would like to thank Joe Eaton and Corey Nolet for their collaboration on the
 CUDA kernels (still in progress), and for the support of NVIDIA.
 
+I would like to thank Pat Quillen for his
+collaboration and for the support of MathWorks.
+
 I would like to thank John Eaton for his collaboration on the integration
 with Octave 7.
 
@@ -16152,7 +16162,7 @@ \section{Acknowledgments}
 \url{https://redislabs.com/blog/new-redisgraph-1-0-achieves-600x-faster-performance-graph-databases/}}).
 
 SuiteSparse:GraphBLAS was developed with support from
-NVIDIA, Intel, MIT Lincoln Lab, Redis, IBM,
+NVIDIA, Intel, MIT Lincoln Lab, MathWorks, Redis, IBM,
 the National Science Foundation (1514406, 1835499), and Julia Computing.
 
 %-------------------------------------------------------------------------------
diff --git a/Doc/GraphBLAS_version.tex b/Doc/GraphBLAS_version.tex
index 8abf8ca42b..9ba781cdeb 100644
--- a/Doc/GraphBLAS_version.tex
+++ b/Doc/GraphBLAS_version.tex
@@ -1,5 +1,5 @@
 % version of SuiteSparse:GraphBLAS
 \date{VERSION
-7.3.0,
-Oct 14, 2022}
+7.3.1,
+Oct 21, 2022}
 
diff --git a/GraphBLAS/CMakeLists.txt b/GraphBLAS/CMakeLists.txt
index 11a6321894..fe23dc0da9 100644
--- a/GraphBLAS/CMakeLists.txt
+++ b/GraphBLAS/CMakeLists.txt
@@ -17,10 +17,10 @@ cmake_minimum_required ( VERSION 3.19 )
 
 # date version must match ../CMakeLists.txt:
 # version of SuiteSparse:GraphBLAS
-set ( GraphBLAS_DATE "Oct 14, 2022" )
+set ( GraphBLAS_DATE "Oct 21, 2022" )
 set ( GraphBLAS_VERSION_MAJOR 7 )
 set ( GraphBLAS_VERSION_MINOR 3 )
-set ( GraphBLAS_VERSION_SUB   0 )
+set ( GraphBLAS_VERSION_SUB   1 )
 
 message ( STATUS "Building SuiteSparse:GraphBLAS version: v"
     ${GraphBLAS_VERSION_MAJOR}.${GraphBLAS_VERSION_MINOR}.${GraphBLAS_VERSION_SUB}
diff --git a/Include/GraphBLAS.h b/Include/GraphBLAS.h
index de05ca95f1..82877e356a 100644
--- a/Include/GraphBLAS.h
+++ b/Include/GraphBLAS.h
@@ -221,10 +221,10 @@
 
 // The version of this implementation, and the GraphBLAS API version:
 #define GxB_IMPLEMENTATION_NAME "SuiteSparse:GraphBLAS"
-#define GxB_IMPLEMENTATION_DATE "Oct 14, 2022"
+#define GxB_IMPLEMENTATION_DATE "Oct 21, 2022"
 #define GxB_IMPLEMENTATION_MAJOR 7
 #define GxB_IMPLEMENTATION_MINOR 3
-#define GxB_IMPLEMENTATION_SUB   0
+#define GxB_IMPLEMENTATION_SUB   1
 #define GxB_SPEC_DATE "Nov 15, 2021"
 #define GxB_SPEC_MAJOR 2
 #define GxB_SPEC_MINOR 0
diff --git a/README.md b/README.md
index bfbb2c7873..19a1304f2c 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
 
 SPDX-License-Identifier: Apache-2.0
 
-VERSION 7.3.0, Oct 14, 2022
+VERSION 7.3.1, Oct 21, 2022
 
 SuiteSparse:GraphBLAS is a complete implementation of the GraphBLAS standard,
 which defines a set of sparse matrix operations on an extended algebra of
diff --git a/Source/GB_compiler.h b/Source/GB_compiler.h
index 48cd5ac4f8..496b30edf1 100644
--- a/Source/GB_compiler.h
+++ b/Source/GB_compiler.h
@@ -175,6 +175,19 @@
 
 #endif
 
+//------------------------------------------------------------------------------
+// Workaround for compiler bug in Microsoft Visual Studio 2019
+//------------------------------------------------------------------------------
+
+// The GB_COMPILER_MSC_2019 flag disables the FIRST_FC32 and SECOND_FC32 binary
+// operators for the MS Visual Studio 2019 compiler (MSC versions 19.20 to
+// 19.29).  It's possible that the compiler bug appears in 19.30 and later (VS
+// 2022), but this hasn't been tested.  This macro optimistically assumes the
+// bug will be fixed in that version.
+
+#define GB_COMPILER_MSC_2019 ( GB_COMPILER_MSC && (GB_COMPILER_MAJOR == 19) \
+    && (GB_COMPILER_MINOR >= 20) && (GB_COMPILER_MINOR <= 29) )
+
 //------------------------------------------------------------------------------
 // malloc.h: required include file for Microsoft Visual Studio
 //------------------------------------------------------------------------------
diff --git a/Source/Generated2/GB_binop__first_fc32.c b/Source/Generated2/GB_binop__first_fc32.c
index 970f661bb5..1b2c611f6e 100644
--- a/Source/Generated2/GB_binop__first_fc32.c
+++ b/Source/Generated2/GB_binop__first_fc32.c
@@ -118,7 +118,7 @@
 
 // disable this operator and use the generic case if these conditions hold
 #define GB_DISABLE \
-    (GxB_NO_FIRST || GxB_NO_FC32 || GxB_NO_FIRST_FC32)
+    (GxB_NO_FIRST || GxB_NO_FC32 || GxB_NO_FIRST_FC32 || GB_COMPILER_MSC_2019)
 
 //------------------------------------------------------------------------------
 // C += A+B, all 3 matrices dense
diff --git a/Source/Generated2/GB_binop__second_fc32.c b/Source/Generated2/GB_binop__second_fc32.c
index 243adbfea9..81757dabf6 100644
--- a/Source/Generated2/GB_binop__second_fc32.c
+++ b/Source/Generated2/GB_binop__second_fc32.c
@@ -118,7 +118,7 @@
 
 // disable this operator and use the generic case if these conditions hold
 #define GB_DISABLE \
-    (GxB_NO_SECOND || GxB_NO_FC32 || GxB_NO_SECOND_FC32)
+    (GxB_NO_SECOND || GxB_NO_FC32 || GxB_NO_SECOND_FC32 || GB_COMPILER_MSC_2019)
 
 //------------------------------------------------------------------------------
 // C += A+B, all 3 matrices dense
diff --git a/Source/Template/GB_sparse_add_template.c b/Source/Template/GB_sparse_add_template.c
index 04a76c6e1f..5c2f00a9da 100644
--- a/Source/Template/GB_sparse_add_template.c
+++ b/Source/Template/GB_sparse_add_template.c
@@ -395,6 +395,14 @@
                         { 
                             // C (i,j) = alpha + B(i,j)
                             GB_LOAD_B (bij, Bx, pB+p, B_iso) ;
+                            // GB_COMPILER_MSC_2019 workaround: the following
+                            // line of code triggers a bug in the MSC 19.2x
+                            // compiler in Visual Studio 2019, only for the
+                            // FIRST_FC32 and SECOND_FC32 operators.  As a
+                            // workaround, this template is not used for
+                            // those operators when compiling GraphBLAS with
+                            // this compiler.  Note the bug may also appear
+                            // in VS2022, but this has not yet been tested.
                             GB_BINOP (GB_CX (pC+p), alpha_scalar, bij, i, j) ;
                         }
                         #else
diff --git a/Source/codegen_binop_method.m b/Source/codegen_binop_method.m
index c53779b5a7..38a2a3134c 100644
--- a/Source/codegen_binop_method.m
+++ b/Source/codegen_binop_method.m
@@ -224,6 +224,12 @@ function codegen_binop_method (binop, op, xtype)
 disable = sprintf ('GxB_NO_%s', upper (binop)) ;
 disable = [disable (sprintf (' || GxB_NO_%s', upper (fname)))] ;
 disable = [disable (sprintf (' || GxB_NO_%s_%s', upper (binop), upper (fname)))] ;
+if (isequal (ytype, 'GxB_FC32_t') && ...
+    (isequal (binop, 'first') || isequal (binop, 'second')))
+    % disable the FIRST_FC32 and SECOND_FC32 binary operators for
+    % MS Visual Studio 2019.  These files trigger a bug in the compiler.
+    disable = [disable ' || GB_COMPILER_MSC_2019'] ;
+end
 fprintf (f, 'define(`GB_disable'', `(%s)'')\n', disable) ;
 
 % ff = fopen ('temp.h', 'a') ;
diff --git a/Tcov/log_Oct13.txt b/Tcov/log_Oct13.txt
deleted file mode 100644
index 97220e2a76..0000000000
--- a/Tcov/log_Oct13.txt
+++ /dev/null
@@ -1,141 +0,0 @@
-
----------------------------------------------- [malloc] [cover]
-13-Oct 19:31:32 test246         9.1 sec   374: 19981 of 20355   1.8%    40.94/s
-13-Oct 19:31:33 test01          0.9 sec  1975: 18006 of 20355  11.5%  2166.50/s
-13-Oct 19:31:34 test245         0.2 sec    47: 17959 of 20355  11.8%   268.90/s
-13-Oct 19:31:34 test199         0.0 sec    17: 17942 of 20355  11.9%  1542.09/s
-13-Oct 19:31:34 test83          0.1 sec    21: 17921 of 20355  12.0%   258.12/s
-13-Oct 19:31:34 test210         0.0 sec     7: 17914 of 20355  12.0%  1508.62/s
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-13-Oct 19:31:37 test186(0)      0.4 sec     4: 16504 of 20355  18.9%     9.00/s
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-[malloc debugging turned off]
-13-Oct 19:39:46 test201         0.0 sec     5: 11517 of 20355  43.4%   688.33/s
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-13-Oct 19:43:58 test135         1.9 sec     7:  9705 of 20355  52.3%     3.71/s
-13-Oct 19:44:28 test160        29.3 sec    25:  9680 of 20355  52.4%     0.85/s
-13-Oct 19:44:33 test54          5.9 sec    20:  9660 of 20355  52.5%     3.41/s
-13-Oct 19:44:35 test129         1.2 sec     7:  9653 of 20355  52.6%     5.63/s
-13-Oct 19:44:37 test69          2.2 sec     3:  9650 of 20355  52.6%     1.34/s
-13-Oct 19:46:12 test230        94.9 sec   104:  9546 of 20355  53.1%     1.10/s
-13-Oct 19:56:55 test74        643.5 sec  5796:  3750 of 20355  81.6%     9.01/s
-13-Oct 20:01:06 test127       250.4 sec  1606:  2144 of 20355  89.5%     6.41/s
-13-Oct 20:01:09 test19          3.6 sec    12:  2132 of 20355  89.5%     3.35/s
-13-Oct 20:01:13 test11          3.7 sec     3:  2129 of 20355  89.5%     0.81/s
-13-Oct 20:01:42 test160        29.3 sec     4:  2125 of 20355  89.6%     0.14/s
-13-Oct 20:01:45 test215         2.8 sec     1:  2124 of 20355  89.6%     0.35/s
-13-Oct 20:02:03 test193        17.8 sec     5:  2119 of 20355  89.6%     0.28/s
-13-Oct 20:03:23 test195        80.1 sec    36:  2083 of 20355  89.8%     0.45/s
-13-Oct 20:03:31 test233         7.8 sec     1:  2082 of 20355  89.8%     0.13/s
-13-Oct 20:03:57 test243        26.4 sec     7:  2075 of 20355  89.8%     0.27/s
-13-Oct 20:04:07 test29          9.5 sec     2:  2073 of 20355  89.8%     0.21/s
-13-Oct 20:04:08 testc2(0,0)     1.3 sec     9:  2064 of 20355  89.9%     7.06/s
-13-Oct 20:04:09 testc4(0)       0.6 sec     4:  2060 of 20355  89.9%     6.86/s
-13-Oct 20:04:27 testc7(0)      18.4 sec     3:  2057 of 20355  89.9%     0.16/s
-13-Oct 20:04:33 testcc(1)       5.8 sec     1:  2056 of 20355  89.9%     0.17/s
-13-Oct 20:04:41 test187         8.3 sec     3:  2053 of 20355  89.9%     0.36/s
-13-Oct 20:04:47 test192         5.7 sec     1:  2052 of 20355  89.9%     0.17/s
-13-Oct 20:05:07 test181        20.0 sec    13:  2039 of 20355  90.0%     0.65/s
-13-Oct 20:06:42 test185        95.5 sec    11:  2028 of 20355  90.0%     0.12/s
-13-Oct 20:06:58 test53         16.0 sec     4:  2024 of 20355  90.1%     0.25/s
-13-Oct 20:07:48 test17         50.1 sec    28:  1996 of 20355  90.2%     0.56/s
-13-Oct 20:15:23 test231       454.6 sec   295:  1701 of 20355  91.6%     0.65/s
-13-Oct 20:28:18 test10        774.8 sec   793:   908 of 20355  95.5%     1.02/s
-13-Oct 20:38:26 test75b       608.0 sec   860:    48 of 20355  99.8%     1.41/s
-13-Oct 20:39:58 test21b        92.2 sec    26:    22 of 20355  99.9%     0.28/s
-13-Oct 20:41:10 testca(1)      72.2 sec     5:    17 of 20355  99.9%     0.07/s
-13-Oct 20:43:04 test81        113.4 sec     1:    16 of 20355  99.9%     0.01/s
-13-Oct 20:50:15 test18        431.1 sec    16:   all 20355 full 100%     0.04/s
-[malloc debugging turned back on]
diff --git a/Tcov/log_Oct20.txt b/Tcov/log_Oct20.txt
new file mode 100644
index 0000000000..1af9524356
--- /dev/null
+++ b/Tcov/log_Oct20.txt
@@ -0,0 +1,141 @@
+
+---------------------------------------------- [malloc] [cover]
+20-Oct 21:21:18 test246         9.2 sec   374: 19981 of 20355   1.8%    40.87/s
+20-Oct 21:21:19 test01          1.3 sec  1975: 18006 of 20355  11.5%  1579.29/s
+20-Oct 21:21:19 test245         0.2 sec    47: 17959 of 20355  11.8%   295.47/s
+20-Oct 21:21:19 test199         0.0 sec    17: 17942 of 20355  11.9%  3497.22/s
+20-Oct 21:21:20 test83          0.1 sec    21: 17921 of 20355  12.0%   257.10/s
+20-Oct 21:21:20 test210         0.0 sec     7: 17914 of 20355  12.0%  1843.56/s
+20-Oct 21:21:20 test165         0.0 sec    12: 17902 of 20355  12.1%  1205.30/s
+20-Oct 21:21:20 test219         0.1 sec    11: 17891 of 20355  12.1%   136.75/s
+20-Oct 21:21:20 test241         0.3 sec    16: 17875 of 20355  12.2%    61.76/s
+20-Oct 21:21:20 test220         0.1 sec    66: 17809 of 20355  12.5%   490.14/s
+20-Oct 21:21:20 test211         0.0 sec    26: 17783 of 20355  12.6%   529.87/s
+20-Oct 21:21:20 test202         0.2 sec    33: 17750 of 20355  12.8%   199.48/s
+20-Oct 21:21:22 test152         1.3 sec  1127: 16623 of 20355  18.3%   889.46/s
+20-Oct 21:21:22 test222         0.1 sec     6: 16617 of 20355  18.4%    73.63/s
+20-Oct 21:21:22 test240         0.4 sec    42: 16575 of 20355  18.6%   117.36/s
+20-Oct 21:21:22 test186         0.5 sec    67: 16508 of 20355  18.9%   126.05/s
+20-Oct 21:21:23 test186(0)      0.4 sec     4: 16504 of 20355  18.9%     9.62/s
+20-Oct 21:21:23 test186         0.4 sec     3: 16501 of 20355  18.9%     6.69/s
+20-Oct 21:21:24 test150         0.2 sec    63: 16438 of 20355  19.2%   339.52/s
+20-Oct 21:21:24 test239         0.1 sec    14: 16424 of 20355  19.3%   116.85/s
+20-Oct 21:21:24 test235         0.0 sec    12: 16412 of 20355  19.4%   306.66/s
+20-Oct 21:21:24 test226         0.0 sec     8: 16404 of 20355  19.4%   687.23/s
+20-Oct 21:21:24 test223         0.0 sec     2: 16402 of 20355  19.4%    62.70/s
+20-Oct 21:21:24 test204         0.2 sec    21: 16381 of 20355  19.5%   136.99/s
+20-Oct 21:21:24 test203         0.1 sec    11: 16370 of 20355  19.6%   141.36/s
+20-Oct 21:21:24 test183         0.0 sec    12: 16358 of 20355  19.6%   335.34/s
+20-Oct 21:21:24 test179         0.1 sec    26: 16332 of 20355  19.8%   183.85/s
+20-Oct 21:21:24 test174         0.0 sec    10: 16322 of 20355  19.8%   216.13/s
+20-Oct 21:21:24 test155         0.2 sec    48: 16274 of 20355  20.0%   287.50/s
+20-Oct 21:21:25 test156         0.7 sec   258: 16016 of 20355  21.3%   359.93/s
+20-Oct 21:21:25 test136         0.2 sec    58: 15958 of 20355  21.6%   282.59/s
+20-Oct 21:21:26 test02          0.4 sec   181: 15777 of 20355  22.5%   491.14/s
+20-Oct 21:21:26 test109         0.1 sec    12: 15765 of 20355  22.5%   151.35/s
+20-Oct 21:21:26 test109         0.0 sec     1: 15764 of 20355  22.6%   289.86/s
+20-Oct 21:21:26 test04          0.1 sec    21: 15743 of 20355  22.7%   204.52/s
+20-Oct 21:21:26 test207         0.0 sec     1: 15742 of 20355  22.7%   326.26/s
+20-Oct 21:21:26 test221         0.0 sec     2: 15740 of 20355  22.7%   286.90/s
+20-Oct 21:21:26 test162         0.1 sec     5: 15735 of 20355  22.7%    94.53/s
+20-Oct 21:21:28 test159         1.5 sec   135: 15600 of 20355  23.4%    87.19/s
+20-Oct 21:21:28 test09          0.0 sec     5: 15595 of 20355  23.4%   851.06/s
+20-Oct 21:21:28 test132         0.1 sec     8: 15587 of 20355  23.4%    84.07/s
+20-Oct 21:21:33 test141         5.7 sec   543: 15044 of 20355  26.1%    95.41/s
+20-Oct 21:21:34 testc2(1,1)     0.4 sec    46: 14998 of 20355  26.3%   112.83/s
+20-Oct 21:21:34 test214         0.0 sec     3: 14995 of 20355  26.3%   203.05/s
+20-Oct 21:21:34 test213         0.0 sec     4: 14991 of 20355  26.4%   382.74/s
+20-Oct 21:21:36 test206         2.6 sec   265: 14726 of 20355  27.7%   101.13/s
+20-Oct 21:21:37 test212         0.1 sec    10: 14716 of 20355  27.7%   107.90/s
+20-Oct 21:21:37 test128         0.4 sec    53: 14663 of 20355  28.0%   122.35/s
+20-Oct 21:21:37 test82          0.1 sec    18: 14645 of 20355  28.1%   203.39/s
+20-Oct 21:21:38 test229         1.1 sec     7: 14638 of 20355  28.1%     6.27/s
+20-Oct 21:21:39 test144         0.6 sec     2: 14636 of 20355  28.1%     3.51/s
+20-Oct 21:22:01 test14         22.3 sec   724: 13912 of 20355  31.7%    32.48/s
+20-Oct 21:22:11 test180        10.2 sec   133: 13779 of 20355  32.3%    13.01/s
+20-Oct 21:22:15 test236         3.7 sec    73: 13706 of 20355  32.7%    19.69/s
+20-Oct 21:22:18 test232         2.6 sec    22: 13684 of 20355  32.8%     8.47/s
+20-Oct 21:22:35 test228        17.7 sec    37: 13647 of 20355  33.0%     2.09/s
+20-Oct 21:24:38 test154       122.8 sec  1503: 12144 of 20355  40.3%    12.24/s
+20-Oct 21:24:54 test238        15.6 sec    70: 12074 of 20355  40.7%     4.50/s
+20-Oct 21:25:43 test151b       49.6 sec   144: 11930 of 20355  41.4%     2.90/s
+20-Oct 21:25:46 test184         3.0 sec    39: 11891 of 20355  41.6%    12.84/s
+20-Oct 21:25:59 test191        13.1 sec    20: 11871 of 20355  41.7%     1.53/s
+20-Oct 21:26:52 test188        52.8 sec   194: 11677 of 20355  42.6%     3.67/s
+20-Oct 21:26:53 test237         0.8 sec    16: 11661 of 20355  42.7%    21.15/s
+20-Oct 21:26:58 test224         5.2 sec    24: 11637 of 20355  42.8%     4.64/s
+20-Oct 21:27:01 test196         2.4 sec    11: 11626 of 20355  42.9%     4.55/s
+20-Oct 21:27:06 test209         5.8 sec    20: 11606 of 20355  43.0%     3.47/s
+20-Oct 21:27:25 test104        18.9 sec    40: 11566 of 20355  43.2%     2.11/s
+20-Oct 21:27:33 test189         7.8 sec     1: 11565 of 20355  43.2%     0.13/s
+20-Oct 21:28:47 test194        73.4 sec     8: 11557 of 20355  43.2%     0.11/s
+20-Oct 21:29:03 test76         16.3 sec    18: 11539 of 20355  43.3%     1.11/s
+20-Oct 21:29:42 test244        38.7 sec    17: 11522 of 20355  43.4%     0.44/s
+[malloc debugging turned off]
+20-Oct 21:29:42 test201         0.0 sec     5: 11517 of 20355  43.4%  1296.68/s
+20-Oct 21:29:42 test225         0.1 sec     5: 11512 of 20355  43.4%    34.46/s
+20-Oct 21:29:42 test170         0.1 sec     1: 11511 of 20355  43.4%    12.21/s
+20-Oct 21:29:42 test176         0.1 sec     5: 11506 of 20355  43.5%    59.14/s
+20-Oct 21:29:42 test208         0.0 sec     5: 11501 of 20355  43.5%   270.04/s
+20-Oct 21:29:42 test216         0.1 sec     3: 11498 of 20355  43.5%    33.22/s
+20-Oct 21:29:49 test142         7.4 sec   630: 10868 of 20355  46.6%    85.65/s
+20-Oct 21:29:50 test137         0.2 sec     5: 10863 of 20355  46.6%    31.24/s
+20-Oct 21:29:50 test139         0.4 sec     2: 10861 of 20355  46.6%     5.49/s
+20-Oct 21:29:50 test145         0.2 sec    10: 10851 of 20355  46.7%    56.72/s
+20-Oct 21:29:50 test172         0.1 sec     3: 10848 of 20355  46.7%    39.24/s
+20-Oct 21:29:51 test148         0.5 sec     6: 10842 of 20355  46.7%    13.11/s
+20-Oct 21:29:51 test157         0.7 sec    13: 10829 of 20355  46.8%    18.17/s
+20-Oct 21:29:52 test182         1.0 sec     9: 10820 of 20355  46.8%     9.07/s
+20-Oct 21:29:53 test108         0.4 sec     1: 10819 of 20355  46.8%     2.36/s
+20-Oct 21:29:54 test130         1.0 sec    26: 10793 of 20355  47.0%    27.36/s
+20-Oct 21:29:54 test124         0.2 sec     3: 10790 of 20355  47.0%    17.39/s
+20-Oct 21:29:54 test138         0.0 sec     1: 10789 of 20355  47.0%    21.51/s
+20-Oct 21:29:59 test227         5.0 sec    27: 10762 of 20355  47.1%     5.39/s
+20-Oct 21:30:31 test125        32.2 sec   627: 10135 of 20355  50.2%    19.50/s
+20-Oct 21:31:49 test234        78.1 sec    69: 10066 of 20355  50.5%     0.88/s
+20-Oct 21:32:42 test242        52.9 sec    77:  9989 of 20355  50.9%     1.46/s
+20-Oct 21:32:44 test173         1.3 sec    11:  9978 of 20355  51.0%     8.61/s
+20-Oct 21:32:47 test200         3.5 sec    10:  9968 of 20355  51.0%     2.89/s
+20-Oct 21:32:47 test197         0.1 sec     1:  9967 of 20355  51.0%     7.56/s
+20-Oct 21:32:49 test84          1.5 sec    18:  9949 of 20355  51.1%    12.27/s
+20-Oct 21:33:03 test19b        14.1 sec    57:  9892 of 20355  51.4%     4.04/s
+20-Oct 21:33:13 test19b         9.8 sec     5:  9887 of 20355  51.4%     0.51/s
+20-Oct 21:33:13 test133         0.4 sec     2:  9885 of 20355  51.4%     5.05/s
+20-Oct 21:33:17 test80          3.8 sec    12:  9873 of 20355  51.5%     3.13/s
+20-Oct 21:33:38 test151        21.4 sec    73:  9800 of 20355  51.9%     3.41/s
+20-Oct 21:33:57 test23         18.7 sec    88:  9712 of 20355  52.3%     4.72/s
+20-Oct 21:33:59 test135         1.9 sec     7:  9705 of 20355  52.3%     3.71/s
+20-Oct 21:34:29 test160        30.5 sec    25:  9680 of 20355  52.4%     0.82/s
+20-Oct 21:34:35 test54          5.9 sec    20:  9660 of 20355  52.5%     3.39/s
+20-Oct 21:34:36 test129         1.3 sec     7:  9653 of 20355  52.6%     5.59/s
+20-Oct 21:34:39 test69          2.1 sec     3:  9650 of 20355  52.6%     1.40/s
+20-Oct 21:36:14 test230        95.9 sec   104:  9546 of 20355  53.1%     1.08/s
+20-Oct 21:47:01 test74        646.1 sec  5796:  3750 of 20355  81.6%     8.97/s
+20-Oct 21:51:16 test127       255.6 sec  1606:  2144 of 20355  89.5%     6.28/s
+20-Oct 21:51:20 test19          3.6 sec    12:  2132 of 20355  89.5%     3.36/s
+20-Oct 21:51:23 test11          3.7 sec     3:  2129 of 20355  89.5%     0.82/s
+20-Oct 21:51:54 test160        30.6 sec     4:  2125 of 20355  89.6%     0.13/s
+20-Oct 21:51:57 test215         2.8 sec     1:  2124 of 20355  89.6%     0.36/s
+20-Oct 21:52:15 test193        17.9 sec     5:  2119 of 20355  89.6%     0.28/s
+20-Oct 21:53:38 test195        82.9 sec    36:  2083 of 20355  89.8%     0.43/s
+20-Oct 21:53:45 test233         7.8 sec     1:  2082 of 20355  89.8%     0.13/s
+20-Oct 21:54:12 test243        26.7 sec     7:  2075 of 20355  89.8%     0.26/s
+20-Oct 21:54:21 test29          9.4 sec     2:  2073 of 20355  89.8%     0.21/s
+20-Oct 21:54:23 testc2(0,0)     1.3 sec     9:  2064 of 20355  89.9%     6.85/s
+20-Oct 21:54:23 testc4(0)       0.7 sec     4:  2060 of 20355  89.9%     6.12/s
+20-Oct 21:54:42 testc7(0)      18.8 sec     3:  2057 of 20355  89.9%     0.16/s
+20-Oct 21:54:48 testcc(1)       5.9 sec     1:  2056 of 20355  89.9%     0.17/s
+20-Oct 21:54:57 test187         8.4 sec     3:  2053 of 20355  89.9%     0.36/s
+20-Oct 21:55:02 test192         5.8 sec     1:  2052 of 20355  89.9%     0.17/s
+20-Oct 21:55:23 test181        20.3 sec    13:  2039 of 20355  90.0%     0.64/s
+20-Oct 21:56:59 test185        96.0 sec    11:  2028 of 20355  90.0%     0.11/s
+20-Oct 21:57:15 test53         16.3 sec     4:  2024 of 20355  90.1%     0.25/s
+20-Oct 21:58:06 test17         50.8 sec    28:  1996 of 20355  90.2%     0.55/s
+20-Oct 22:05:48 test231       462.4 sec   295:  1701 of 20355  91.6%     0.64/s
+20-Oct 22:19:01 test10        792.4 sec   793:   908 of 20355  95.5%     1.00/s
+20-Oct 22:29:16 test75b       615.7 sec   860:    48 of 20355  99.8%     1.40/s
+20-Oct 22:30:50 test21b        93.6 sec    26:    22 of 20355  99.9%     0.28/s
+20-Oct 22:32:01 testca(1)      71.4 sec     5:    17 of 20355  99.9%     0.07/s
+20-Oct 22:33:55 test81        113.6 sec     1:    16 of 20355  99.9%     0.01/s
+20-Oct 22:41:14 test18        439.2 sec    16:   all 20355 full 100%     0.04/s
+[malloc debugging turned back on]
diff --git a/Test/test128.m b/Test/test128.m
index 2bd79b2855..8d6fc014cb 100644
--- a/Test/test128.m
+++ b/Test/test128.m
@@ -43,6 +43,30 @@
 S = sparse (m,n) ;
 X = sparse (rand (m,n)) ;
 
+% test the workaround for the GB_COMPILER_MSC_2019 bug in the
+% Microsoft C compiler
+A.class = 'single complex' ;
+B.class = 'single complex' ;
+T.matrix = sparse (m,n) ;
+T.class = 'single complex' ;
+GrB.burble (1) ;
+for B_hyper = 0:1
+    for A_hyper = 0:1
+        A.is_hyper = A_hyper ;
+        B.is_hyper = B_hyper ;
+        C1 = GB_spec_Matrix_eWiseUnion(T, [ ], [ ], 'first', A, 1, B, 2, [ ]) ;
+        C4 = GB_mex_Matrix_eWiseUnion (T, [ ], [ ], 'first', A, 1, B, 2, [ ]) ;
+        GB_spec_compare (C1, C4) ;
+        C1 = GB_spec_Matrix_eWiseUnion(T, [ ], [ ], 'second', A, 1, B, 2, [ ]) ;
+        C4 = GB_mex_Matrix_eWiseUnion (T, [ ], [ ], 'second', A, 1, B, 2, [ ]) ;
+        GB_spec_compare (C1, C4) ;
+    end
+end
+GrB.burble (0) ;
+
+A.class = 'double' ;
+B.class = 'double' ;
+
 for B_hyper = 0:1
     for A_hyper = 0:1
         A.is_hyper = A_hyper ;
diff --git a/alternative/Makefile b/alternative/Makefile
index 7b39ddd8f3..ab61c3c138 100644
--- a/alternative/Makefile
+++ b/alternative/Makefile
@@ -21,7 +21,7 @@ default: library
 # This version info must match ../CMakeLists.txt 
 VER1 = 7
 VER2 = 3
-VER3 = 0
+VER3 = 1
 
 # pick your compiler:
   CC = gcc
diff --git a/rmm_wrap/CMakeLists.txt b/rmm_wrap/CMakeLists.txt
index 3fc0ade50e..74d87ba965 100644
--- a/rmm_wrap/CMakeLists.txt
+++ b/rmm_wrap/CMakeLists.txt
@@ -43,7 +43,7 @@ include_directories(${CMAKE_CURRENT_BINARY_DIR}/external_includes/rmm/include)
 
 add_library(rmm_wrap rmm_wrap.cpp rmm_wrap.hpp rmm_wrap.h)
 
-SET_TARGET_PROPERTIES (rmm_wrap PROPERTIES
+set_target_properties (rmm_wrap PROPERTIES
 		VERSION ${GraphBLAS_VERSION_MAJOR}.${GraphBLAS_VERSION_MINOR}.${GraphBLAS_VERSION_SUB}
 		SOVERSION ${GraphBLAS_VERSION_MAJOR}
 		C_STANDARD_REQUIRED 11