diff --git a/RELEASE_NOTES b/RELEASE_NOTES
index d39b7da..7949f0b 100644
--- a/RELEASE_NOTES
+++ b/RELEASE_NOTES
@@ -1,7 +1,7 @@
-== iperf 3.1.0 ????-??-?? ==
+== iperf 3.1 2015-10-16 ==
 
-The release notes for iperf 3.1.0 describe changes and new
-functionality in iperf 3.1.0, but not present in 3.0.11 or any earlier
+The release notes for iperf 3.1 describe changes and new
+functionality in iperf 3.1, but not present in 3.0.11 or any earlier
 3.0.x release.
 
 * Selected user-visible changes
diff --git a/configure.ac b/configure.ac
index 6c33dc7..e59a967 100644
--- a/configure.ac
+++ b/configure.ac
@@ -24,7 +24,7 @@
 # file for complete information.
 
 # Initialize the autoconf system for the specified tool, version and mailing list
-AC_INIT(iperf, 3.1b3, https://github.com/esnet/iperf, iperf, http://software.es.net/iperf/)
+AC_INIT(iperf, 3.1, https://github.com/esnet/iperf, iperf, http://software.es.net/iperf/)
 AC_LANG(C)
 
 # Specify where the auxiliary files created by configure should go. The config
diff --git a/src/iperf3.1 b/src/iperf3.1
index d865014..cb67336 100644
--- a/src/iperf3.1
+++ b/src/iperf3.1
@@ -1,4 +1,4 @@
-.TH IPERF 1 "June 2015" ESnet "User Manuals"
+.TH IPERF 1 "October 2015" ESnet "User Manuals"
 .SH NAME
 iperf3 \- perform network throughput tests
 .SH SYNOPSIS
diff --git a/src/libiperf.3 b/src/libiperf.3
index cd911ba..49d2526 100644
--- a/src/libiperf.3
+++ b/src/libiperf.3
@@ -1,4 +1,4 @@
-.TH LIBIPERF 3 "June 2015" ESnet "User Manuals"
+.TH LIBIPERF 3 "September 2015" ESnet "User Manuals"
 .SH NAME
 libiperf \- API for iperf3 network throughput tester