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AWS AmazonRDS: Added MariaDB 12.3.2 support and security features

Service: AmazonRDS · 2026-08-12 · Documentation medium

File: AmazonRDS/latest/UserGuide/MariaDB.Concepts.VersionMgmt.md · Type: authz

Summary

Added version details for MariaDB 12.3.2 and documented reserved user protections.

Security assessment

Documents security hardening features (protected system accounts) introduced in new engine version.

Evidence

  * **Reserved user for RDS Proxy** – The `rdsproxyadmin` user is a reserved user. You can't modify or drop this user.

Diff

diff --git a/AmazonRDS/latest/UserGuide/MariaDB.Concepts.VersionMgmt.md b/AmazonRDS/latest/UserGuide/MariaDB.Concepts.VersionMgmt.md
index 5f7f1e295..1672952dc 100644
--- a//AmazonRDS/latest/UserGuide/MariaDB.Concepts.VersionMgmt.md
+++ b//AmazonRDS/latest/UserGuide/MariaDB.Concepts.VersionMgmt.md
@@ -55,0 +56,6 @@ Dates with only a month and a year are approximate and are updated with an exact
+The following table shows the minor versions of MariaDB 12.3 that Amazon RDS currently supports. 
+
+MariaDB engine version | Community release date | RDS release date | RDS end of standard support date  
+---|---|---|---  
+12.3.2 | 28 May 2026 |  7 August 2026 |  August 2027  
+  
@@ -132,0 +139,2 @@ Replace `major_engine_version` with the major engine version, and replace `regio
+  * MariaDB version 12.3.2
+
@@ -191,0 +200,13 @@ Replace `major_engine_version` with the major engine version, and replace `regio
+#### MariaDB version 12.3.2
+
+MariaDB version 12.3.2 is now available on Amazon RDS. This release contains fixes and improvements added by the MariaDB community and Amazon RDS.
+
+**New features and enhancements**
+
+  * **Reserved user for RDS Proxy** – The `rdsproxyadmin` user is a reserved user. You can't modify or drop this user. For more information, see [MariaDB security on Amazon RDS](./MariaDB.Concepts.UsersAndPrivileges.html).
+
+  * **Drop protection for the replication user account** – Starting with RDS for MariaDB version 12.3, drop protection applies to the `rdsrepladmin` account regardless of its host value. Attempting to drop `'rdsrepladmin'@'host'` for any host results in an error. For more information, see [MariaDB security on Amazon RDS](./MariaDB.Concepts.UsersAndPrivileges.html).
+
+
+
+
@@ -471 +492,2 @@ MariaDB major version | Community release date | RDS release date | Community en
-MariaDB 11.8 |  6 August 2025 |  25 August 2025 |  June 2030 |  June 2030  
+MariaDB 12.3 |  28 May 2026 |  7 August 2026 |  June 2029 |  June 2029  
+MariaDB 11.8 |  6 August 2025 |  25 August 2025 |  June 2028 |  June 2028