PgBouncer 1.7.1 maintenance release is out. It contains mainly tuning of TLS-related code. See full details in changelog.
WARNING: 1.7.x behaviour change
Since version 1.7,
server_reset_query is not executed when
database is in transaction-pooling mode. Seems this was not highlighted
enough in 1.7 announcement. If your apps depend on that happening, use
server_reset_query_always to restore previous behaviour.