Better explanation in 2023-05-11 release

Reviewed-by: David Rowley <dgrowleyml@gmail.com>

diff --git a/update_releases/current/20230511updaterelease.md b/update_releases/current/20230511updaterelease.md
index 3aa71fac88e2d8eb259702d44e6d0a89774c518a..a53ef0dc2e9fd38ea19f41084865289867d60bf1 100644 (file)
--- a/update_releases/current/20230511updaterelease.md
+++ b/update_releases/current/20230511updaterelease.md
@@ -1,6 +1,7 @@
 The PostgreSQL Global Development Group has released an update to all supported
 versions of PostgreSQL, including 15.3, 14.8, 13.11, 12.15, and 11.20.
-This release fixes over 80 bugs reported over the last several months.
+This release fixes two security vulnerabilities over 80 bugs reported over the
+last several months.
 
 For the full list of changes, please review the
 [release notes](https://www.postgresql.org/docs/release/).
@@ -42,8 +43,8 @@ the ICU provider.
 current 64-bit xid.
 * Several fixes for the query parser and planner, including better detection of
 improperly-nested aggregates.
-* Fix partition pruning logic for partitioning on boolean columns when using a
-`IS NOT TRUE` condition.
+* Fix partition pruning bug with the boolean `IS NOT TRUE` and `IS NOT FALSE`
+conditions. Prior to this, `NULL` partitions were accidentally pruned.
 * Fix memory leak in [Memoize plan](https://www.postgresql.org/docs/current/runtime-config-query.html#GUC-ENABLE-MEMOIZE)
 execution.
 * Fix buffer refcount leak on foreign tables using partitions when performing