Add release notes for back branches (7.3 and up).

Also minor improvements to 8.1.1 release notes.

doc/src/sgml/release.sgml

@@ -1,10 +1,56 @@
 <!--
-$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.163.2.23 2005/10/03 16:05:29 tgl Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.163.2.24 2005/12/09 20:41:11 tgl Exp $
 -->
 
 <appendix id="release">
  <title>Release Notes</title>
  
+  <sect1 id="release-7-3-12">
+   <title>Release 7.3.12</title>
+
+   <note>
+   <title>Release date</title>
+   <simpara>2005-12-12</simpara>
+   </note>
+
+   <para>
+    This release contains a variety of fixes from 7.3.11.
+   </para>
+
+   <sect2>
+    <title>Migration to version 7.3.12</title>
+
+    <para>
+     A dump/restore is not required for those running 7.3.X.  However,
+     if you are upgrading from a version earlier than 7.3.10, see the release
+     notes for 7.3.10.
+    </para>
+   </sect2>
+
+   <sect2>
+    <title>Changes</title>
+  
+<itemizedlist>
+
+<listitem><para>Fix race condition in transaction log management</para>
+<para>There was a narrow window in which an I/O operation could be initiated
+for the wrong page, leading to an Assert failure or data
+corruption.</para>
+</listitem>
+
+<listitem><para><filename>/contrib/ltree</> fixes (Teodor)</para></listitem>
+
+<listitem><para>Fix longstanding planning error for outer joins</para>
+<para>This bug sometimes caused a bogus error <quote>RIGHT JOIN is
+only supported with merge-joinable join conditions</>.</para></listitem>
+
+<listitem><para>Prevent core dump in <application>pg_autovacuum</> when a
+table has been dropped</para></listitem>
+</itemizedlist>
+
+   </sect2>
+  </sect1>
+ 
   <sect1 id="release-7-3-11">
    <title>Release 7.3.11</title>