Stamp 12.0.

configure

 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for PostgreSQL 12rc1.
+# Generated by GNU Autoconf 2.69 for PostgreSQL 12.0.
 #
 # Report bugs to <pgsql-bugs@lists.postgresql.org>.
 #
@@ -582,8 +582,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='PostgreSQL'
 PACKAGE_TARNAME='postgresql'
-PACKAGE_VERSION='12rc1'
-PACKAGE_STRING='PostgreSQL 12rc1'
+PACKAGE_VERSION='12.0'
+PACKAGE_STRING='PostgreSQL 12.0'
 PACKAGE_BUGREPORT='pgsql-bugs@lists.postgresql.org'
 PACKAGE_URL=''
@@ -1435,7 +1435,7 @@ 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 12rc1 to adapt to many kinds of systems.
+\`configure' configures PostgreSQL 12.0 to adapt to many kinds of systems.
 Usage: $0 [OPTION]... [VAR=VALUE]...
@@ -1500,7 +1500,7 @@ fi
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of PostgreSQL 12rc1:";;
+     short | recursive ) echo "Configuration of PostgreSQL 12.0:";;
    esac
   cat <<\_ACEOF
@@ -1666,7 +1666,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-PostgreSQL configure 12rc1
+PostgreSQL configure 12.0
 generated by GNU Autoconf 2.69
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2419,7 +2419,7 @@ 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 12rc1, which was
+It was created by PostgreSQL $as_me 12.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
   $ $0 $@
@@ -19864,7 +19864,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=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 12rc1, which was
+This file was extended by PostgreSQL $as_me 12.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
   CONFIG_FILES    = $CONFIG_FILES
@@ -19934,7 +19934,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-PostgreSQL config.status 12rc1
+PostgreSQL config.status 12.0
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"

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], [12rc1], [pgsql-bugs@lists.postgresql.org])
+AC_INIT([PostgreSQL], [12.0], [pgsql-bugs@lists.postgresql.org])
 
 m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.69], [], [m4_fatal([Autoconf version 2.69 is required.
 Untested combinations of 'autoconf' and PostgreSQL versions are not

src/include/pg_config.h.win32

@@ -645,10 +645,10 @@
 #define PACKAGE_NAME "PostgreSQL"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "PostgreSQL 12rc1"
+#define PACKAGE_STRING "PostgreSQL 12.0"
 
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "12rc1"
+#define PACKAGE_VERSION "12.0"
 
 /* Define to the name of a signed 128-bit integer type. */
 #undef PG_INT128_TYPE
@@ -657,7 +657,7 @@
 #define PG_INT64_TYPE long long int
 
 /* PostgreSQL version as a string */
-#define PG_VERSION "12rc1"
+#define PG_VERSION "12.0"
 
 /* PostgreSQL version as a number */
 #define PG_VERSION_NUM 120000