# Percona Distribution for PostgreSQL 13.6 (2022-03-22)
Percona Distribution for PostgreSQL is a collection of tools to assist you in managing PostgreSQL. Percona Distribution for PostgreSQL
installs PostgreSQL and complements it by a selection of extensions that
enable solving essential practical tasks efficiently.
This release of Percona Distribution for PostgreSQL is based on [PostgreSQL 13.6](https://www.postgresql.org/docs/13/release-13-5.html).
The following is the list of extensions available in Percona Distribution for PostgreSQL.
| Extension | Version | Description |
| ------------------- | -------------- | ---------------------------- |
| [Patroni](https://patroni.readthedocs.io/en/latest/) | 2.1.2 | a HA (High Availability) solution for PostgreSQL |
| [Pgaudit](https://www.pgaudit.org/) | 1.5.1 | provides detailed session or object audit logging via the standard logging facility provided by PostgreSQL |
|[`pgAudit set user`](https://github.com/pgaudit/set_user)| 3.0.0| provides an additional layer of logging and control when unprivileged users must escalate themselves to superuser or object owner roles in order to perform needed maintenance tasks.|
| [pgBackRest](https://pgbackrest.org/) | 2.37 | a backup and restore solution for PostgreSQL |
|[`pgBadger`](https://github.com/darold/pgbadger) | 11.7 | a fast PostgreSQL Log Analyzer.|
|[`pgBouncer`](https://www.pgbouncer.org/) | 1.16.1 | lightweight connection pooler for PostgreSQL|
| [pg_repack](https://github.com/reorg/pg_repack) | 1.4.7 | rebuilds PostgreSQL database objects |
| [pg_stat_monitor](https://github.com/percona/pg_stat_monitor)| 1.0.0 - rc.1 | collects and aggregates statistics for PostgreSQL and provides histogram information. |
| [PostgreSQL Common](https://packages.debian.org/sid/percona-postgresql-common)| 237 | PostgreSQL database-cluster manager. It provides a structure under which multiple versions of PostgreSQL may be installed and/or multiple clusters maintained at one time.|
|[`wal2json`](https://github.com/eulerto/wal2json) |2.4 | a PostgreSQL logical decoding JSON output plugin.|
Percona Distribution for PostgreSQL also includes the following packages:
- `llvm` 12.0.1 packages for Red Hat Enterprise Linux 8 and compatible derivatives. These fix compatibility issues with LLVM from upstream.
- supplemental etcd packages which can be used for setting up Patroni clusters. These packages are available for the following operating systems:
| Operating System |Package | Version | Description |
| ------------------- | ---------------------| --------| -------------------|
| RHEL 7 |`python3-python-etcd` | 0.4.3 | A Python client for etcd |
| RHEL 8 | `etcd` | 3.3.11 | A consistent, distributed key-value store|
| | `python3-python-etcd`| 0.4.3 | A Python client for etcd |
| Debian 9 ('stretch')| `etcd` | 3.3.11 |A consistent, distributed key-value store|
| | `python3-etcd` | 0.4.3 | A Python client for etcd |
Percona Distribution for PostgreSQL is also shipped with the [libpq](https://www.postgresql.org/docs/13/libpq.html) library. It contains "a set of
library functions that allow client programs to pass queries to the PostgreSQL
backend server and to receive the results of these queries."