PgBouncer 1.19.0 has been released. This release contains several small new features and some important bug fixes. A new option auth_dbname and a new command SHOW STATE have been added, as well as additional facilities to manage cancel requests. A bug introduced in version 1.18.0 that affected a number of users has been fixed, so users of that version are especially encouraged to upgrade.
for more information, the detailed changelog, and download links.
PgBouncer is a lightweight connection pooler for PostgreSQL.