PgBouncer 1.21.0 for Aiven for PostgreSQL^® released

The PgBouncer connection pooler for PostgreSQL 1.21.0 is now available for Aiven for PostgreSQL®. It introduces new features, changes, and bug fixes.

New features

Introduces support for protocol-level named prepared statements: Using prepared statements together with PgBouncer can reduce the CPU load on your system.

Changes

• Improves security for default TLS settings and changes required for the FIPS compliance.
• Discontinues support for UDNS.

Bug fixes

• Fixes the crash with error message FATAL in function client_proto(): bad client state: 6/7 [#928] (the bug introduced in 1.18.0).
• Fixes the crash with error message FATAL in function server_proto(): server in bad state: 11 [#927] (the bug introduced in 1.18.0).
• Reduces cancellation sending log level [#903].
• Fixes the slog log prefix for peers [#922].
• Fixes typos in the docs [#932].
• Fixes errors pointed out by the static analyzer [#943].
• Prevents killing all waiting clients on temporary FATAL errors during logging in [#946].
• Enables using the auto-database when a database in auth_dbname is not explicitly configured [#921].