diff --git a/doc/src/sgml/release-16.sgml b/doc/src/sgml/release-16.sgml
index 3d462d1c914..f737a7ead22 100644
--- a/doc/src/sgml/release-16.sgml
+++ b/doc/src/sgml/release-16.sgml
@@ -1,6 +1,200 @@
+
+ Release 16.13
+
+
+ Release date:
+ 2026-02-26
+
+
+
+ This release contains a small number of fixes from 16.12.
+ For information about new features in major release 16, see
+ .
+
+
+
+ Migration to Version 16.13
+
+
+ A dump/restore is not required for those running 16.X.
+
+
+
+ However, if you are upgrading from a version earlier than 16.10,
+ see .
+
+
+
+
+ Changes
+
+
+
+
+
+
+ Fix failure after replaying a multixid truncation record from WAL
+ that was generated by an older minor version (Heikki Linnakangas)
+ §
+
+
+
+ Erroneous logic for coping with the way that previous versions
+ handled multixid wraparound led to replay failure, with messages
+ like could not access status of transaction
.
+ A typical scenario in which this could occur is a standby server of
+ the latest minor version consuming WAL from a primary server of an
+ older version.
+
+
+
+
+
+
+ Avoid incorrect complaint of invalid encoding
+ when substring() is applied
+ to toasted
data (Noah Misch)
+ §
+ §
+ §
+
+
+
+ The fix for CVE-2026-2006 was too aggressive and could raise an
+ error about an incomplete character in cases that are actually
+ valid.
+
+
+
+
+
+
+ Fix computation of the set of potentially-nulling outer joins for
+ the output of a LATERAL UNION ALL subquery
+ (Richard Guo)
+ §
+
+
+
+ This error could lead to skipping NOT NULL tests
+ in the mistaken belief that they were unnecessary, resulting in
+ wrong query output.
+
+
+
+
+
+
+ Fix pg_stat_get_backend_wait_event()
+ and pg_stat_get_backend_wait_event_type()
+ to report values for auxiliary processes (Heikki Linnakangas)
+ §
+
+
+
+ Previously these functions returned NULL for auxiliary processes,
+ but that's inconsistent with
+ the pg_stat_activity view.
+
+
+
+
+
+
+ Fix casting a composite-type variable to a domain type when
+ returning its value from a PL/pgSQL function (Tom Lane)
+ §
+
+
+
+ If the variable's value is NULL, a cache lookup failed for
+ type 0
error resulted.
+
+
+
+
+
+
+ Fix potential null pointer dereference
+ in contrib/hstore's binary input function
+ (Michael Paquier)
+ §
+
+
+
+ hstore's receive function crashed on input containing
+ duplicate keys. hstore values generated by Postgres
+ would never contain duplicate keys, so this mistake has gone
+ unnoticed. The crash could be provoked by malicious or corrupted
+ data.
+
+
+
+
+
+
+
+
Release 16.12