Doc: final(?) updates for 14.0 release notes.

Add the customary short list of major features.  Set release date.

Discussion: https://postgr.es/m/1489855.1631986639@sss.pgh.pa.us

diff --git a/doc/src/sgml/release-14.sgml b/doc/src/sgml/release-14.sgml
index 647ac47c5c476c7ce863e5b5e9c4f93b0d8dda2c..0f5dcbd62b911af6ae42cd84508f7c92e900b176 100644 (file)
--- a/doc/src/sgml/release-14.sgml
+++ b/doc/src/sgml/release-14.sgml
@@ -6,7 +6,7 @@
 
   
    Release date:
-   2021-??-?? (AS OF 2021-09-18)
+   2021-09-30
   
 
   
@@ -20,7 +20,70 @@
    
     
      
-      TO BE ADDED
+      Stored procedures can now return data via OUT
+      parameters.
+     
+    
+
+    
+     
+      The SQL-standard SEARCH
+      and CYCLE options for common table expressions
+      have been implemented.
+     
+    
+
+    
+     
+      Subscripting can now be applied to any data type for which
+      it is a useful notation, not only arrays.  In this release,
+      the jsonb and hstore types have gained
+      subscripting operators.
+     
+    
+
+    
+     
+      Range types have been extended by adding multiranges, allowing
+      representation of noncontiguous data ranges.
+     
+    
+
+    
+     
+      Numerous performance improvements have been made for parallel
+      queries, heavily-concurrent workloads, partitioned tables, logical
+      replication, and vacuuming.
+     
+    
+
+    
+     
+      B-tree index updates are managed more efficiently, reducing index
+      bloat.
+     
+    
+
+    
+     
+      VACUUM automatically becomes more aggressive, and
+      skips inessential cleanup, if the database starts to approach a
+      transaction ID wraparound condition.
+     
+    
+
+    
+     
+      Extended statistics can now be collected on expressions, allowing
+      better planning results for complex queries.
+     
+    
+
+    
+     
+      libpq now has the ability to pipeline
+      multiple queries, which can boost throughput over high-latency
+      connections.