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AWS AmazonRDS medium security documentation change

Service: AmazonRDS · 2025-08-16 · Security-related medium

File: AmazonRDS/latest/PostgreSQLReleaseNotes/postgresql-versions.md

Summary

Added documentation for PostgreSQL versions 18 Beta 3, 17.6, 16.10, 15.14, 14.19, and 13.22, including new parameters, extensions, and general enhancements

Security assessment

The addition of parameters like 'idle_replication_slot_timeout' (prevents resource exhaustion), 'md5_password_warnings' (deprecation warnings for weak authentication), 'log_lock_failure' (security logging), and 'restrict_nonsystem_relation_kind' (access control) in PostgreSQL 18 Beta 3 directly addresses security-related configurations. These parameters improve security posture by mitigating risks associated with idle resources, weak authentication methods, and unauthorized access.

Diff

diff --git a/AmazonRDS/latest/PostgreSQLReleaseNotes/postgresql-versions.md b/AmazonRDS/latest/PostgreSQLReleaseNotes/postgresql-versions.md
index fc6e6930e..1e6ef5257 100644
--- a//AmazonRDS/latest/PostgreSQLReleaseNotes/postgresql-versions.md
+++ b//AmazonRDS/latest/PostgreSQLReleaseNotes/postgresql-versions.md
@@ -50,0 +51,2 @@ To learn more about versioning policy for RDS for PostgreSQL, see [Amazon RDS FA
+  * PostgreSQL version 18 Beta 3 in the Amazon RDS Preview environment
+
@@ -57,0 +60,77 @@ To learn more about versioning policy for RDS for PostgreSQL, see [Amazon RDS FA
+### PostgreSQL version 18 Beta 3 in the Amazon RDS Preview environment
+
+PostgreSQL 18 Beta 3 contains many new features and enhancements that can be seen in the release documentation: [PostgreSQL 18 Beta 3 Released!](https://www.postgresql.org/about/news/postgresql-176-1610-1514-1419-1322-and-18-beta-3-released-3118/).
+
+The following modifiable parameters were added:
+
+  * `autovacuum_vacuum_max_threshold`
+
+  * `track_cost_delay_timing`
+
+  * `idle_replication_slot_timeout`
+
+  * `md5_password_warnings`
+
+  * `log_lock_failure`
+
+  * `restrict_nonsystem_relation_kind`
+
+  * `vacuum_truncate`
+
+  * `vacuum_max_eager_freeze_failure_rate`
+
+  * `enable_distinct_reordering`
+
+  * `enable_self_join_elimination`
+
+  * `max_active_replication_origins`
+
+  * `io_max_combine_limit`
+
+
+
+
+The following extensions were added:
+
+  * `plv8`
+
+  * `pgactive`
+
+
+
+
+The following extensions that are supported in Amazon RDS PostgreSQL version 17 aren't supported for Amazon RDS PostgreSQL version 18 Beta 3 in preview:
+
+  * `address_standardizer`
+
+  * `address_standardizer_data_us`
+
+  * `h3-pg`
+
+  * `pg_hint_plan`
+
+  * `pg_transport`
+
+  * `pgAudit`
+
+  * `pglogical`
+
+  * `pgrouting`
+
+  * `plrust`
+
+  * `PostGIS`
+
+  * `postgis_raster`
+
+  * `postgis_tiger_geocoder`
+
+  * `postgis_topology`
+
+  * `tds_fdw`
+
+
+
+
+For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 18](./postgresql-extensions.html#postgresql-extensions-18x).
+
@@ -214,0 +294,2 @@ For version information on all extensions, see [Extensions supported for RDS for
+  * PostgreSQL version 17.6 on Amazon RDS
+
@@ -239,0 +321,24 @@ For version information on all extensions, see [Extensions supported for RDS for
+### PostgreSQL version 17.6 on Amazon RDS
+
+PostgreSQL version 17.6 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 17.6 release](https://www.postgresql.org/docs/release/17.6/).
+
+**General enhancements**
+
+  * Grant rds_superuser access to pg_wal_pause / pg_wal_replay functions to perform logical upgrades and verification/validation.
+
+  * Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.
+
+
+
+
+This version also includes the following extension changes:
+
+  * The `pg_repack` extension was updated to version 1.5.2.
+
+  * The `oracle_fdw` extension was updated to version 2.8.0.
+
+  * The `pgactive` extension was updated to version 2.1.5.
+
+
+
+
@@ -620,0 +726,2 @@ For version information on all extensions, see [Extensions supported for RDS for
+  * PostgreSQL version 16.10 on Amazon RDS
+
@@ -669,0 +777,24 @@ For version information on all extensions, see [Extensions supported for RDS for
+### PostgreSQL version 16.10 on Amazon RDS
+
+PostgreSQL version 16.10 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.10 release](https://www.postgresql.org/docs/release/16.10/).
+
+**General enhancements**
+
+  * Grant rds_superuser access to pg_wal_pause / pg_wal_replay functions to perform logical upgrades and verification/validation.
+
+  * Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.
+
+
+
+
+This version also includes the following extension changes:
+
+  * The `pg_repack` extension was updated to version 1.5.2.
+
+  * The `oracle_fdw` extension was updated to version 2.8.0.
+
+  * The `pgactive` extension was updated to version 2.1.5.
+
+
+
+
@@ -1245,0 +1377,2 @@ For version information on all extensions, see [Extensions supported for RDS for
+  * PostgreSQL version 15.14 on Amazon RDS
+
@@ -1298,0 +1432,24 @@ For version information on all extensions, see [Extensions supported for RDS for
+### PostgreSQL version 15.14 on Amazon RDS
+
+PostgreSQL version 15.14 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.14 release](https://www.postgresql.org/docs/release/15.14/).
+
+**General enhancements**
+
+  * Grant rds_superuser access to pg_wal_pause / pg_wal_replay functions to perform logical upgrades and verification/validation.
+
+  * Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.
+
+
+
+
+This version also includes the following extension changes:
+
+  * The `pg_repack` extension was updated to version 1.5.2.
+
+  * The `oracle_fdw` extension was updated to version 2.8.0.
+
+  * The `pgactive` extension was updated to version 2.1.5.
+
+
+
+
@@ -1915,0 +2073,2 @@ For version information on all extensions, see [Extensions supported for RDS for
+  * PostgreSQL version 14.19 on Amazon RDS
+
@@ -1978,0 +2138,24 @@ For version information on all extensions, see [Extensions supported for RDS for
+### PostgreSQL version 14.19 on Amazon RDS
+
+PostgreSQL version 14.19 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.19 release](https://www.postgresql.org/docs/release/14.19/).
+
+**General enhancements**
+
+  * Grant rds_superuser access to pg_wal_pause / pg_wal_replay functions to perform logical upgrades and verification/validation.
+
+  * Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.
+
+
+
+
+This version also includes the following extension changes:
+
+  * The `pg_repack` extension was updated to version 1.5.2.
+
+  * The `oracle_fdw` extension was updated to version 2.8.0.
+
+  * The `pgactive` extension was updated to version 2.1.5.
+
+
+
+
@@ -2695,0 +2879,2 @@ For information on all extensions, see [Extensions supported for RDS for Postgre
+  * PostgreSQL version 13.22 on Amazon RDS
+