Amazon Aurora PostgreSQL-Compatible Edition now supports PostgreSQL major version 14 (14.3). PostgreSQL 14 includes performance improvements for parallel queries, heavily-concurrent workloads, partitioned tables, logical replication, and vacuuming. PostgreSQL 14 also improves functionality with new capabilities. For example, you can cancel long-running queries if a client disconnects and you can close idle sessions if they time out. Range types now support multiranges, allowing representation of non-contiguous data ranges, and stored procedures can now return data via OUT parameters. This release includes new features for Babelfish for Aurora PostgreSQL version 2.1. Please refer to Amazon Aurora PostgreSQL updates for more information.
Source:: Amazon AWS