Azure Database for PostgreSQL flexible server: August 2026 release

We're excited to announce the August 2026 version of Azure Database for PostgreSQL. This version introduces a range of new features and enhancements, resolves known issues, and includes essential security patches to ensure optimal performance and security.

Note

New servers created on or after August 5, 2026, are automatically be onboarded to this latest version. Existing servers will be updated during their next scheduled maintenance. Azure deployments roll out region by region, so availability may vary and the global rollout can take up to one month. Customers should monitor their scheduled maintenance notifications to know when the update will be applied to their server.

Note

The following released version, date, and content only correspond to the actual deployment of the Microsoft Azure Clouds.

It provides the evolution history of Azure Database for PostgreSQL service on Azure Public Cloud in most cases.

Please note that in some cases, it may not be consistent with the actual deployment of Azure operated by 21Vianet.

Engine version changes

Features

  • PgBouncer upgraded to latest community version release 1.25.2.

Improvements

  • Migrations: Added configurable batching for pgoutput publication creation, which prevents timeouts and memory spikes when migrating databases with very large numbers of tables.
  • Migrations: Publication batch size and SQL command timeout are now configurable.
  • Improved read availability during compute scale-up and scale-down operations.
  • Multiple security fixes and hardening improvements to enhance platform security and reliability.

Known issue fixes

  • Fixed an issue that could cause Microsoft Entra ID administrator creation to fail when the principal name exceeded 63 bytes.
  • Migrations: Fixed online migration reliability for PostgreSQL 9.5 and 9.6 source servers by using the correct WAL-position function and automatically selecting wal2json, preventing follow-stage and publication failures.
  • Migrations: Corrected SSL-mode handling during publication validation and added a clearer, actionable error for SSL handshake failures.
  • Migrations: Corrected publication validation to run only for online migrations, preventing publication-ownership failures during offline migrations.
  • Migrations: Added missing en_NZ.UTF-8 and en_NZ.utf8 collation mappings.
  • Long-term retention (LTR): Backup failures caused by insufficient CPU credits on burstable Azure Database for PostgreSQL flexible servers now surface in Azure Backup with an actionable error, enabling you to take corrective action.