diff --git a/configure b/configure
index b0a10fbbc1..3819732ca0 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.63 for PostgreSQL 9.1devel.
+# Generated by GNU Autoconf 2.63 for PostgreSQL 9.1beta1.
 #
 # Report bugs to <pgsql-bugs@postgresql.org>.
 #
@@ -598,8 +598,8 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 # Identity of this package.
 PACKAGE_NAME='PostgreSQL'
 PACKAGE_TARNAME='postgresql'
-PACKAGE_VERSION='9.1devel'
-PACKAGE_STRING='PostgreSQL 9.1devel'
+PACKAGE_VERSION='9.1beta1'
+PACKAGE_STRING='PostgreSQL 9.1beta1'
 PACKAGE_BUGREPORT='pgsql-bugs@postgresql.org'
 
 ac_unique_file="src/backend/access/common/heaptuple.c"
@@ -1415,7 +1415,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures PostgreSQL 9.1devel to adapt to many kinds of systems.
+\`configure' configures PostgreSQL 9.1beta1 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1480,7 +1480,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of PostgreSQL 9.1devel:";;
+     short | recursive ) echo "Configuration of PostgreSQL 9.1beta1:";;
    esac
   cat <<\_ACEOF
 
@@ -1628,7 +1628,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-PostgreSQL configure 9.1devel
+PostgreSQL configure 9.1beta1
 generated by GNU Autoconf 2.63
 
 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
@@ -1644,7 +1644,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by PostgreSQL $as_me 9.1devel, which was
+It was created by PostgreSQL $as_me 9.1beta1, which was
 generated by GNU Autoconf 2.63.  Invocation command line was
 
   $ $0 $@
@@ -30188,7 +30188,7 @@ exec 6>&1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by PostgreSQL $as_me 9.1devel, which was
+This file was extended by PostgreSQL $as_me 9.1beta1, which was
 generated by GNU Autoconf 2.63.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -30255,7 +30255,7 @@ Report bugs to <bug-autoconf@gnu.org>."
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_version="\\
-PostgreSQL config.status 9.1devel
+PostgreSQL config.status 9.1beta1
 configured by $0, generated by GNU Autoconf 2.63,
   with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"
 
diff --git a/configure.in b/configure.in
index 03ff57d4bc..fa6d9e5d7c 100644
--- a/configure.in
+++ b/configure.in
@@ -17,7 +17,7 @@ dnl Read the Autoconf manual for details.
 dnl
 m4_pattern_forbid(^PGAC_)dnl to catch undefined macros
 
-AC_INIT([PostgreSQL], [9.1devel], [pgsql-bugs@postgresql.org])
+AC_INIT([PostgreSQL], [9.1beta1], [pgsql-bugs@postgresql.org])
 
 m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.63], [], [m4_fatal([Autoconf version 2.63 is required.
 Untested combinations of 'autoconf' and PostgreSQL versions are not
diff --git a/doc/bug.template b/doc/bug.template
index f1c5dc9d04..a63853c182 100644
--- a/doc/bug.template
+++ b/doc/bug.template
@@ -27,7 +27,7 @@ System Configuration:
 
   Operating System (example: Linux 2.4.18)	:
 
-  PostgreSQL version (example: PostgreSQL 9.1devel):  PostgreSQL 9.1devel
+  PostgreSQL version (example: PostgreSQL 9.1beta1):  PostgreSQL 9.1beta1
 
   Compiler used (example: gcc 3.3.5)		:
 
diff --git a/src/include/pg_config.h.win32 b/src/include/pg_config.h.win32
index b85bf411de..1ecc05604d 100644
--- a/src/include/pg_config.h.win32
+++ b/src/include/pg_config.h.win32
@@ -572,13 +572,13 @@
 #define PACKAGE_NAME "PostgreSQL"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "PostgreSQL 9.1devel"
+#define PACKAGE_STRING "PostgreSQL 9.1beta1"
 
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "9.1devel"
+#define PACKAGE_VERSION "9.1beta1"
 
 /* PostgreSQL version as a string */
-#define PG_VERSION "9.1devel"
+#define PG_VERSION "9.1beta1"
 
 /* PostgreSQL version as a number */
 #define PG_VERSION_NUM 90100