<listitem>

<para>

New memory management system for <command>VACUUM</command>, which reduces

memory consumption and can improve overall vacuuming performance.

</para>

</listitem>

<listitem>

<para>

New <acronym>SQL/JSON</acronym> capabilities, including constructors,

identity functions, and the <link

linkend="functions-sqljson-table"><function>JSON_TABLE()</function></link>

function, which converts JSON data into a table representation.

</para>

</listitem>

<listitem>

<para>

Various query performance improvements, including to sequential reads

using streaming I/O, write throughput under high concurrency, and

searches over multiple values in a <link linkend="btree">btree</link>

index.

</para>

</listitem>

<listitem>

<para>

Logical replication enhancements, including:

<itemizedlist>

<listitem>

<para>

Failover control

</para>

</listitem>

<listitem>

<para>

<link

linkend="app-pgcreatesubscriber"><application>pg_createsubscriber</application></link>,

a utility that logical replicas from physical standbys

</para>

</listitem>

<listitem>

<para>

<link

linkend="pgupgrade"><application>pg_upgrade</application></link> now

preserves replication slots on both publishers and subscribers

</para>

</listitem>

</itemizedlist>

</para>

</listitem>

<listitem>

<para>

New client-side connection option, <link

linkend="libpq-connect-sslnegotiation"><literal>sslnegotiation=direct</literal></link>,

that allows direct TLS handshakes that avoids a round-trip negotation.

</para>

</listitem>

<listitem>

<para>

<link

linkend="app-pgbasebackup"><application>pg_basebackup</application></link>

now supports incremental backup.

</para>

</listitem>

<listitem>

<para>

<link linkend="sql-copy"><command>COPY</command></link> adds a new option,

<literal>ON_ERROR ignore</literal>, that allows a copy operation to

continue in the event of an error.

</para>

</listitem>