PostgreSQL 14: What's New, Release History & EOL Status

What is New in PostgreSQL 14

PostgreSQL 14 brings important performance gains, enhanced security, better scalability, and several developer-friendly features. This major release focuses on improving vacuum efficiency, logical replication, query performance for large datasets, and overall system reliability.

Key improvements include faster vacuuming, more powerful logical replication, new security capabilities, and better support for modern workloads.

Performance Improvements

PostgreSQL 14 delivers noticeable speed improvements across multiple areas:

• Substantial vacuum performance improvements, especially on tables with many indexes
• Faster B-tree index builds and maintenance
• Improved query planning and execution for partitioned tables
• Better memory management during sorting and aggregation
• Enhanced parallel query execution in more scenarios

These changes help reduce maintenance windows and improve overall database responsiveness under heavy load.

Logical Replication Enhancements

Logical replication has been significantly strengthened in PostgreSQL 14:

• Support for streaming large in-progress transactions to subscribers
• Two-phase commit support for logical replication
• Row filtering on the publisher side for more efficient replication
• Improved monitoring with new system views
• Better conflict detection and resolution options

These features make building scalable, distributed database architectures much easier and more reliable.

Security Improvements

PostgreSQL 14 introduces several important security enhancements:

• New predefined role pg_database_owner for easier ownership management
• Support for SCRAM-SHA-256 password encryption by default in many setups
• Ability to restrict access to specific schemas using the pg_read_all_settings and related roles
• Improved TLS configuration options and certificate handling

SQL and Developer Features

PostgreSQL 14 adds several useful features for developers and data teams:

• New multirange data types for easier date and number range handling
• Support for the OUT and INOUT parameters in procedures
• Improved JSON functions and performance
• New pg_stat_progress_copy view for monitoring COPY operations
• Better support for GROUP BY and window functions

Monitoring and Administration

Other Notable Changes

Additional improvements include:

• Better handling of very large databases and tablespaces
• Improved WAL writing performance
• More efficient TOAST storage management
• Removal of some long-deprecated features
• Enhanced support for ARM64 architecture

Migration Considerations

When planning an upgrade to PostgreSQL 14, keep these points in mind:

• Test vacuum performance thoroughly as behavior has changed significantly
• Review logical replication setups to take advantage of new streaming and filtering features
• Update security policies to use the new predefined roles where appropriate
• Check applications using deprecated features that have been removed

PostgreSQL 14 delivers a strong balance of performance improvements, security enhancements, and new functionality, making it an excellent upgrade for most production environments.