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PG-1794 Release Notes 17.5.3
- update variables - update dates - add release note highlights incl. pg_tde ver and doc updates
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# Percona Distribution for PostgreSQL 17.5.3 ({{date.17_5_3}})
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--8<-- "release-notes-intro.md"
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This release of Percona Distribution for PostgreSQL is based on Percona Server for PostgreSQL 17.5.3 - a binary compatible, open source drop in replacement of [PostgreSQL Community 17.5](https://www.postgresql.org/docs/17/release-17-5.html).
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## Release Highlights
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### `pg_tde` 2.0 - WAL encryption now generally available
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Percona Distribution for PostgreSQL includes the 2.0 release of `pg_tde`.
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This version introduces several enhancements, most notably the general availability of WAL encryption.
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See the [`pg_tde` release notes :octicons-link-external-16:](https://docs.percona.com/pg-tde/release-notes/release-notes-v2.0.html) for more details.
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### Major documentation update in Percona Distribution for PostgreSQL
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* Expanded and improved the [High Availability](../solutions/high-availability.md) topic with more information and example deployments.
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* Updated the [PostGIS installation commands via yum](../yum.md#for-postgis) topic.
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* Updated the [Telemetry](../telemetry.md) topic with revised steps and commands.
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* Added new [FAQ](../faq.md) and [Versioning](../versioning.md) topics.
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The following is the list of extensions available in Percona Distribution for PostgreSQL.
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| Extension | Version | Description |
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|--------------------------------------------------------------------------------------|-----------|----------------------------------------------------------------------------------------------------------------------|
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| [etcd :octicons-link-external-16:](https://etcd.io/) | 3.5.21 | A distributed, reliable key-value store for setting up high available Patroni clusters |
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| [HAProxy :octicons-link-external-16:](http://www.haproxy.org/) | 2.8.15 | A high-availability and load-balancing solution |
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| [Patroni :octicons-link-external-16:](https://patroni.readthedocs.io/en/latest/) | 4.0.5 | A HA (High Availability) solution for PostgreSQL |
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| [PgAudit :octicons-link-external-16:](https://www.pgaudit.org/) | 17.1 | Provides detailed session or object audit logging via the standard logging facility provided by PostgreSQL |
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| [pgAudit set_user :octicons-link-external-16:](https://github.com/pgaudit/set_user) | 4.1.0 | Provides an additional layer of logging and control when unprivileged users must escalate roles for maintenance. |
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| [pgBackRest :octicons-link-external-16:](https://pgbackrest.org/) | 2.55.0 | A backup and restore solution for PostgreSQL |
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| [pgBadger :octicons-link-external-16:](https://github.com/darold/pgbadger) | 13.1 | A fast PostgreSQL Log Analyzer |
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| [PgBouncer :octicons-link-external-16:](https://www.pgbouncer.org/) | 1.24.1 | A lightweight connection pooler for PostgreSQL |
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| [pg_gather :octicons-link-external-16:](https://github.com/jobinau/pg_gather) | v30 | An SQL script for running the diagnostics of the health of a PostgreSQL cluster |
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| [pgpool2 :octicons-link-external-16:](https://git.postgresql.org/gitweb/?p=pgpool2.git;a=summary) | 4.6.0 | A middleware between PostgreSQL server and client for high availability, connection pooling, and load balancing |
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| [pg_repack :octicons-link-external-16:](https://github.com/reorg/pg_repack) | 1.5.2 | Rebuilds PostgreSQL database objects |
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| [pgvector :octicons-link-external-16:](https://github.com/pgvector/pgvector) | v0.8.0 | A vector similarity search for PostgreSQL |
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| [PostGIS :octicons-link-external-16:](https://github.com/postgis/postgis) | 3.3.8 | A spatial extension for PostgreSQL |
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| [PostgreSQL Common :octicons-link-external-16:](https://salsa.debian.org/postgresql/postgresql-common) | 277 | PostgreSQL database-cluster manager. Supports multiple PostgreSQL versions and clusters simultaneously |
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| [wal2json :octicons-link-external-16:](https://github.com/eulerto/wal2json) | 2.6 | A PostgreSQL logical decoding JSON output plugin |
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For Red Hat Enterprise Linux 8 and compatible derivatives, Percona Distribution for PostgreSQL also includes the supplemental `python3-etcd` 0.4.5 packages, which are used for setting up Patroni clusters.
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Percona Distribution for PostgreSQL is also shipped with the [libpq](https://www.postgresql.org/docs/17/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."

docs/release-notes/release-notes.md

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## 2025
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* [17.5.3](release-notes-v17.5.3.md) ({{date.17_5_3}})
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* [17.5.2](release-notes-v17.5.md) ({{date.17_5}})
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* [17.5.1](release-notes-v17.5.1.md) ({{date.17_5_1}})
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* [17.4.1](release-notes-v17.4.md) ({{date.17_4}})

docs/templates/pdf_cover_page.tpl

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{% if config.site_description %}
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<h1>{{ config.site_description }}</h1>
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{% endif %}
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<h2>17.5.2 (June 30, 2025)</h2>
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<h2>17.5.3 (August 30, 2025)</h2>
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<!--<h3>Percona Technical Documentation Team</h3>-->
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mkdocs.yml

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- Release notes:
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- "Release notes index": release-notes/release-notes.md
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- 2025:
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- "17.5.3": release-notes/release-notes-v17.5.3.md
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- "17.5.2": release-notes/release-notes-v17.5.md
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- "17.5.1": release-notes/release-notes-v17.5.1.md
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- "17.4.1": release-notes/release-notes-v17.4.md

variables.yml

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release: 'release-notes-v17.5'
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dockertag: '17.5-2'
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dockertag: '17.5-3'
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pgversion: '17'
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pspgversion: '17.5.2'
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pspgversion: '17.5.3'
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pgsmversion: '2.1.1'
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date:
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17_5_3: 2025-08-30
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17_5: 2025-06-30
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17_5_1: 2025-05-28
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17_4: 2025-03-27

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