# Percona Distribution for PostgreSQL 11.12 Second Update (2021-07-01)
With this update of Percona Distribution for PostgreSQL, ``etcd`` package is added as a ``DEB`` package to Percona Distribution for PostgreSQL for Debian 9 ("stretch"). This package is used to set up High Availability clusters with Patroni. For how to set up Patroni clusters, see [Patroni documentation](https://patroni.readthedocs.io/en/latest/README.html#running-configuring).