Stamp HEAD as 18devel.

Let the hacking begin ...

configure

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for PostgreSQL 17beta2.
+# Generated by GNU Autoconf 2.69 for PostgreSQL 18devel.
 #
 # 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='17beta2'
-PACKAGE_STRING='PostgreSQL 17beta2'
+PACKAGE_VERSION='18devel'
+PACKAGE_STRING='PostgreSQL 18devel'
 PACKAGE_BUGREPORT='pgsql-bugs@lists.postgresql.org'
 PACKAGE_URL='https://www.postgresql.org/'
 
@@ -1450,7 +1450,7 @@ 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 17beta2 to adapt to many kinds of systems.
+\`configure' configures PostgreSQL 18devel to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1515,7 +1515,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of PostgreSQL 17beta2:";;
+     short | recursive ) echo "Configuration of PostgreSQL 18devel:";;
    esac
   cat <<\_ACEOF
 
@@ -1690,7 +1690,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-PostgreSQL configure 17beta2
+PostgreSQL configure 18devel
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2443,7 +2443,7 @@ 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 17beta2, which was
+It was created by PostgreSQL $as_me 18devel, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -19785,7 +19785,7 @@ cat >>$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 17beta2, which was
+This file was extended by PostgreSQL $as_me 18devel, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -19856,7 +19856,7 @@ _ACEOF
 cat >>$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 17beta2
+PostgreSQL config.status 18devel
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 

configure.ac

@@ -17,7 +17,7 @@ dnl Read the Autoconf manual for details.
 dnl
 m4_pattern_forbid(^PGAC_)dnl to catch undefined macros
 
-AC_INIT([PostgreSQL], [17beta2], [pgsql-bugs@lists.postgresql.org], [], [https://www.postgresql.org/])
+AC_INIT([PostgreSQL], [18devel], [pgsql-bugs@lists.postgresql.org], [], [https://www.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

doc/src/sgml/filelist.sgml

@@ -177,7 +177,7 @@
 <!ENTITY sourcerepo SYSTEM "sourcerepo.sgml">
 
 <!ENTITY release    SYSTEM "release.sgml">
-<!ENTITY release-17 SYSTEM "release-17.sgml">
+<!ENTITY release-18 SYSTEM "release-18.sgml">
 
 <!ENTITY limits     SYSTEM "limits.sgml">
 <!ENTITY acronyms   SYSTEM "acronyms.sgml">

doc/src/sgml/release-18.sgml

@@ -0,0 +1,16 @@
+<!-- doc/src/sgml/release-18.sgml -->
+<!-- See header comment in release.sgml about typical markup -->
+
+<sect1 id="release-18">
+ <title>Release 18</title>
+
+ <formalpara>
+  <title>Release date:</title>
+  <para>2025-??-??</para>
+ </formalpara>
+
+ <para>
+  This is just a placeholder for now.
+ </para>
+
+</sect1>

doc/src/sgml/release.sgml

@@ -79,7 +79,7 @@ For new features, add links to the documentation sections.
   All the active branches have to be edited concurrently when doing that.
 -->
 
-&release-17;
+&release-18;
 
  <sect1 id="release-prior">
   <title>Prior Releases</title>

meson.build

@@ -8,7 +8,7 @@
 
 project('postgresql',
   ['c'],
-  version: '17beta2',
+  version: '18devel',
   license: 'PostgreSQL',
 
   # We want < 0.56 for python 3.5 compatibility on old platforms. EPEL for

src/tools/git_changelog

@@ -59,7 +59,7 @@ require IPC::Open2;
 # (We could get this from "git branches", but not worth the trouble.)
 # NB: master must be first!
 my @BRANCHES = qw(master
-  REL_16_STABLE REL_15_STABLE REL_14_STABLE REL_13_STABLE
+  REL_17_STABLE REL_16_STABLE REL_15_STABLE REL_14_STABLE REL_13_STABLE
   REL_12_STABLE REL_11_STABLE REL_10_STABLE REL9_6_STABLE REL9_5_STABLE
   REL9_4_STABLE REL9_3_STABLE REL9_2_STABLE REL9_1_STABLE REL9_0_STABLE
   REL8_4_STABLE REL8_3_STABLE REL8_2_STABLE REL8_1_STABLE REL8_0_STABLE

src/tools/version_stamp.pl

@@ -25,7 +25,7 @@ use warnings FATAL => 'all';
 
 # Major version is hard-wired into the script.  We update it when we branch
 # a new development version.
-my $majorversion = 17;
+my $majorversion = 18;
 
 # Validate argument and compute derived variables
 my $minor = shift;