diff --git a/configure.ac b/configure.ac
index c90167874ff..61b9b87aad3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,19 +2,19 @@
 ## Ed Hartnett 8/16/17
 
 # Initialize autoconf and automake.
-AC_INIT(pio, 2.4.1)
+AC_INIT(pio, 2.4.2-development)
 AC_CONFIG_SRCDIR(src/clib/pio_darray.c)
 AM_INIT_AUTOMAKE([foreign serial-tests])
 
 # The PIO version, again.
 AC_DEFINE([PIO_VERSION_MAJOR], [2], [PIO major version])
 AC_DEFINE([PIO_VERSION_MINOR], [4], [PIO minor version])
-AC_DEFINE([PIO_VERSION_PATCH], [1], [PIO patch version])
+AC_DEFINE([PIO_VERSION_PATCH], [2], [PIO patch version])
 
 # Once more for the documentation.
 AC_SUBST([VERSION_MAJOR], [2])
 AC_SUBST([VERSION_MINOR], [4])
-AC_SUBST([VERSION_PATCH], [1])
+AC_SUBST([VERSION_PATCH], [2])
 
 # The m4 directory holds macros for autoconf.
 AC_CONFIG_MACRO_DIR([m4])
diff --git a/tests/performance/Pioperformance.md b/tests/performance/Pioperformance.md
index 7b6016efc3b..c6ce7f0fafc 100644
--- a/tests/performance/Pioperformance.md
+++ b/tests/performance/Pioperformance.md
@@ -40,3 +40,23 @@ They call init_ideal_dof which internally generates a dof as follows:
 The size of the variable is npes*varsize where varsize can be set in
 the namelist.
 
+When this is run, output like the following will appear:
+
+    mpiexec -n 4 ./pioperf
+    (t_initf) Read in prof_inparm namelist from: pioperf.nl
+     Testing decomp: BLOCK
+    iotype=           1
+    pioperformance.F90         298 Frame:                     1
+    pioperformance.F90         301 var:            1
+    RESULT: write       BOX         1         4         1        0.0319221529
+     RESULT: read       BOX         1         4         1        0.1658564029
+    pioperformance.F90         298 Frame:                     1
+    pioperformance.F90         301 var:            1
+    RESULT: write    SUBSET         1         4         1        0.0438470950
+     RESULT: read    SUBSET         1         4         1        0.1623275432
+
+These are read and write rates in units of MB/s for Box and Subset
+rearrangers - the time measured is from the call to readdof or
+writedof to the completion of the close (since writes are buffered the
+close needs to be included) .
+