1 files changed, 132 insertions, 0 deletions
diff --git a/doc/src/sgml/release-8.2.sgml b/doc/src/sgml/release-8.2.sgml
index 8d35d919ad..0a9ee5031a 100644
--- a/doc/src/sgml/release-8.2.sgml
+++ b/doc/src/sgml/release-8.2.sgml
@@ -1,6 +1,138 @@
 <!-- doc/src/sgml/release-8.2.sgml -->
 <!-- See header comment in release.sgml about typical markup -->
 
+ <sect1 id="release-8-2-21">
+  <title>Release 8.2.21</title>
+
+  <note>
+  <title>Release Date</title>
+  <simpara>2011-04-18</simpara>
+  </note>
+
+  <para>
+   This release contains a variety of fixes from 8.2.20.
+   For information about new features in the 8.2 major release, see
+   <xref linkend="release-8-2">.
+  </para>
+
+  <sect2>
+   <title>Migration to Version 8.2.21</title>
+
+   <para>
+    A dump/restore is not required for those running 8.2.X.
+    However, if you are upgrading from a version earlier than 8.2.14,
+    see the release notes for 8.2.14.
+   </para>
+
+  </sect2>
+
+  <sect2>
+   <title>Changes</title>
+
+   <itemizedlist>
+
+    <listitem>
+     <para>
+      Avoid potential deadlock during catalog cache initialization
+      (Nikhil Sontakke)
+     </para>
+
+     <para>
+      In some cases the cache loading code would acquire share lock on a
+      system index before locking the index's catalog.  This could deadlock
+      against processes trying to acquire exclusive locks in the other,
+      more standard order.
+     </para>
+    </listitem>
+
+    <listitem>
+     <para>
+      Fix dangling-pointer problem in <literal>BEFORE ROW UPDATE</> trigger
+      handling when there was a concurrent update to the target tuple
+      (Tom Lane)
+     </para>
+
+     <para>
+      This bug has been observed to result in intermittent <quote>cannot
+      extract system attribute from virtual tuple</> failures while trying to
+      do <literal>UPDATE RETURNING ctid</>.  There is a very small probability
+      of more serious errors, such as generating incorrect index entries for
+      the updated tuple.
+     </para>
+    </listitem>
+
+    <listitem>
+     <para>
+      Disallow <command>DROP TABLE</> when there are pending deferred trigger
+      events for the table (Tom Lane)
+     </para>
+
+     <para>
+      Formerly the <command>DROP</> would go through, leading to
+      <quote>could not open relation with OID nnn</> errors when the
+      triggers were eventually fired.
+     </para>
+    </listitem>
+
+    <listitem>
+     <para>
+      Fix PL/Python memory leak involving array slices (Daniel Popowich)
+     </para>
+    </listitem>
+
+    <listitem>
+     <para>
+      Fix <application>pg_restore</> to cope with long lines (over 1KB) in
+      TOC files (Tom Lane)
+     </para>
+    </listitem>
+
+    <listitem>
+     <para>
+      Put in more safeguards against crashing due to division-by-zero
+      with overly enthusiastic compiler optimization (Aurelien Jarno)
+     </para>
+    </listitem>
+
+    <listitem>
+     <para>
+      Support use of dlopen() in FreeBSD and OpenBSD on MIPS (Tom Lane)
+     </para>
+
+     <para>
+      There was a hard-wired assumption that this system function was not
+      available on MIPS hardware on these systems.  Use a compile-time test
+      instead, since more recent versions have it.
+     </para>
+    </listitem>
+
+    <listitem>
+     <para>
+      Fix compilation failures on HP-UX (Heikki Linnakangas)
+     </para>
+    </listitem>
+
+    <listitem>
+     <para>
+      Fix path separator used by <application>pg_regress</> on Cygwin
+      (Andrew Dunstan)
+     </para>
+    </listitem>
+
+    <listitem>
+     <para>
+      Update time zone data files to <application>tzdata</> release 2011f
+      for DST law changes in Chile, Cuba, Falkland Islands, Morocco, Samoa,
+      and Turkey; also historical corrections for South Australia, Alaska,
+      and Hawaii.
+     </para>
+    </listitem>
+
+   </itemizedlist>
+
+  </sect2>
+ </sect1>
+
  <sect1 id="release-8-2-20">
   <title>Release 8.2.20</title>