This release shows <productname>PostgreSQL</> moving beyond the

traditional relational feature set with new, ground-breaking

functionality that is unique to <productname>PostgreSQL</>.

Additionally, this release improves streaming replication by adding

a synchronous option and monitoring improvements. Major enhancements

include:

<itemizedlist>

<!-- This list duplicates items below, but without authors or details-->

<listitem>

<para>

Support unlogged tables using the <link

linkend="SQL-CREATETABLE-description"><literal>UNLOGGED</></link>

option in <link linkend="SQL-CREATETABLE"><command>CREATE

TABLE</></link>

</para>

</listitem>

<listitem>

<para>

Allow <link linkend="synchronous-replication">synchronous

replication</link>

</para>

</listitem>

<listitem>

<para>

Add support for <link linkend="SQL-CREATEFOREIGNTABLE">foreign

tables</link>

</para>

</listitem>

<listitem>

<para>

Add per-column <link

linkend="collation">collation</link> support

</para>

</listitem>

<listitem>

<para>

Add a <link linkend="SQL-SECURITY-LABEL"><command>SECURITY

LABEL</></link> command

</para>

</listitem>

<listitem>

<para>

Add a true <link

linkend="xact-serializable">serializable</link> isolation

level

</para>

</listitem>

<listitem>

<para>

Allow data-modification commands

(<command>INSERT</>/<command>UPDATE</>/<command>DELETE)</> in

<link linkend="queries-with"><literal>WITH</></link> clauses

</para>

</listitem>

<listitem>

<para>

Add nearest-neighbor (order-by-operator) searching to <link

linkend="GiST"><acronym>GiST</> indexes</link>

</para>

</listitem>

<listitem>

<para>

Add <link linkend="extend-extensions">extensions</link> which

simplify packaging of additions to <productname>PostgreSQL</>

</para>

</listitem>

<listitem>

<para>

Update the <link linkend="plpython">PL/Python</link> server-side

language

</para>

</listitem>

</itemizedlist>