Doc: update v14 release notes through today.

Account for recent commits, notably reversion of 0827e8af.
Strip trailing spaces.

doc/src/sgml/release-14.sgml

@@ -6,7 +6,7 @@
 
   <formalpara>
    <title>Release date:</title>
-   <para>2021-??-?? (AS OF 2021-06-20)</para>
+   <para>2021-??-?? (AS OF 2021-09-18)</para>
   </formalpara>
 
   <sect2>
@@ -858,24 +858,6 @@ Author: Noah Misch <noah@leadboat.com>
 
       <listitem>
 <!--
-Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
-2021-04-08 [0827e8af7] autovacuum: handle analyze for partitioned tables
--->
-
-       <para>
-        <link linkend="autovacuum">Autovacuum</link> now analyzes
-        partitioned tables (Yuzuko Hosoya, Álvaro Herrera)
-       </para>
-
-       <para>
-        Insert, update, and delete tuple counts from partitions are now
-        propagated to their parent tables so autovacuum knows when to
-        process them.
-       </para>
-      </listitem>
-
-      <listitem>
-<!--
 Author: Michael Paquier <michael@paquier.xyz>
 2021-03-23 [5aed6a1fc] Add per-index stats information in verbose logs of autov
 -->
@@ -1184,13 +1166,13 @@ Author: David Rowley <drowley@postgresql.org>
 -->
 
        <para>
-        Add executor method to cache results from the inner-side of nested
-        loop joins (David Rowley)
+        Add executor method to memoize results from the inner side of a
+        nested-loop join (David Rowley)
        </para>
 
        <para>
         This is useful if only a small percentage of rows is checked on
-        the inner side and is controlled by <xref
+        the inner side.  It can be disabled via <xref
         linkend="guc-enable-memoize"/>.
        </para>
       </listitem>
@@ -2500,6 +2482,8 @@ Author: Alexander Korotkov <akorotkov@postgresql.org>
 2020-12-29 [db6335b5b] Add support of multirange matching to the existing range
 Author: Alexander Korotkov <akorotkov@postgresql.org>
 2020-12-30 [62097a4cc] Fix selectivity estimation @&gt; (anymultirange, anyrange)
+Author: Alexander Korotkov <akorotkov@postgresql.org>
+2021-07-18 [244ad5415] Support for unnest(multirange)
 -->
 
       <para>
@@ -3223,6 +3207,19 @@ Author: Dean Rasheed <dean.a.rasheed@gmail.com>
 
      <listitem>
 <!--
+Author: Fujii Masao <fujii@postgresql.org>
+2021-09-01 [d760d942c] pgbench: Fix bug in measurement of disconnection delays.
+-->
+
+      <para>
+       Include disconnection times in the reconnection overhead measured
+       by <application>pgbench</application> with <option>-C</option>
+       (Yugo Nagata)
+      </para>
+     </listitem>
+
+     <listitem>
+<!--
 Author: Tom Lane <tgl@sss.pgh.pa.us>
 2020-09-17 [99175141c] Improve common/logging.c's support for multiple verbosit
 -->
@@ -3587,15 +3584,21 @@ Author: Tom Lane <tgl@sss.pgh.pa.us>
 <!--
 Author: Peter Eisentraut <peter@eisentraut.org>
 2021-01-06 [4656e3d66] Replace CLOBBER_CACHE_ALWAYS with run-time GUC
+Author: Tom Lane <tgl@sss.pgh.pa.us>
+2021-07-01 [d04770801] Add - -clobber-cache option to initdb, for CCA testing.
+Author: Tom Lane <tgl@sss.pgh.pa.us>
+2021-07-13 [6201fa3c1] Rename debug_invalidate_system_caches_always to debug_di
 -->
 
        <para>
-        Add <xref linkend="guc-debug-discard-caches"/>
+        Add <xref linkend="guc-debug-discard-caches"/> parameter
         to control cache flushing for test purposes (Craig Ringer)
        </para>
 
        <para>
         Previously this behavior could only be set at compile time.
+        To invoke it during <application>initdb</application>, use the new
+        option <option>--discard-caches</option>.
        </para>
       </listitem>
 
@@ -3714,6 +3717,30 @@ Author: Tom Lane <tgl@sss.pgh.pa.us>
        </para>
       </listitem>
 
+      <listitem>
+<!--
+Author: Tom Lane <tgl@sss.pgh.pa.us>
+2021-06-19 [6991e774e] Provide feature-test macros for libpq features added in
+-->
+
+       <para>
+        Provide feature-test macros in <filename>libpq-fe.h</filename>
+        for recently-added <application>libpq</application> features
+        (Tom Lane, Álvaro Herrera)
+       </para>
+
+       <para>
+        Historically, applications have usually used compile-time checks
+        of <literal>PG_VERSION_NUM</literal> to test whether a feature is
+        available.  But that's normally the server version, which might
+        not be a good guide to <application>libpq</application>'s
+        version.  <filename>libpq-fe.h</filename> now
+        offers <literal>#define</literal> symbols denoting
+        application-visible features added in v14; the intent is to keep
+        adding symbols for such features in future versions.
+       </para>
+      </listitem>
+
      </itemizedlist>
 
    </sect3>