diff --git a/doc/src/sgml/release-13.sgml b/doc/src/sgml/release-13.sgml
index bd36eb1bda..afeec3e953 100644
--- a/doc/src/sgml/release-13.sgml
+++ b/doc/src/sgml/release-13.sgml
@@ -12,23 +12,46 @@
Overview
-
- Major enhancements in PostgreSQL 13 include:
-
-
-
+
+ PostgreSQL 13 contains many new features and
+ enhancements, including:
+
-
- TBD
+
+ Space savings and performance gains from de-duplication of B-tree
+ index entries
+
+
+
+
+ Improved performance for queries that use aggregates or partitioned
+ tables
+
+
+
+
+ Better query planning when using extended statistics
+
+
+
+
+ Parallelized vacuuming of B-tree indexes
+
+
+
+
+ Incremental sorting
+
-
-
- The above items are explained in more detail in the sections below.
-
+
+ The above items and other new features
+ of PostgreSQL 13 are explained in more
+ detail in the sections below.
+
@@ -3079,7 +3102,7 @@ Author: Peter Geoghegan
-->
- Add btree index deduplication processing columns to pageinspect output
+ Add btree index de-duplication processing columns to pageinspect output
(Peter Geoghegan)