PgBouncer 1.11.0 is out. The major new feature is support for SCRAM authentication.
This release also adds support for a new startup packet type introduced in PostgreSQL 12 (GSSENCRequest), so this release is recommended for a better experience with PostgreSQL 12 and beyond.
See
https://pgbouncer.github.io/2019/08/pgbouncer-1-11-0
for more information, the detailed changelog, and download links.
PgBouncer is a lightweight connection pooler for PostgreSQL.