PG-2349 - Add Release Notes (18) (#961)

Andriciuc · web-flow · commit c85d2e40ff5b · 2026-05-20T19:09:40.000+03:00
This PR adds the release notes for PSP 18.
diff --git a/.github/workflows/generate-release-metadata.yml b/.github/workflows/generate-release-metadata.yml
diff --git a/docs/release-notes/release-notes-v18.4.1.md b/docs/release-notes/release-notes-v18.4.1.md
@@ -0,0 +1,98 @@
+# Percona Distribution for PostgreSQL 18.4.1 ({{date.18_4_1}})
+
+--8<-- "release-notes-intro.md"
+
+This release of Percona Distribution for PostgreSQL is based on Percona Server for PostgreSQL 18.4.1 - a binary compatible, open source drop in replacement of [PostgreSQL Community 18.4](https://www.postgresql.org/docs/18/release-18-4.html).
+
+## Release Highlights
+
+This release continues to deliver Percona’s open source value-add components for enterprise use cases, `pg_tde` 2.2.0 for Transparent Data Encryption and more. See the full component list below for details.
+
+!!! note
+    `pg_tde` 2.2.0 requires Percona Distribution for PostgreSQL 18.4 at minimum. Earlier versions of PPG are not supported with this release of `pg_tde`.
+
+To upgrade from earlier versions (e.g. Percona Distribution for PostgreSQL 17.x), follow the steps in [Upgrading Percona Distribution for PostgreSQL](../major-upgrade.md).
+
+!!! note
+    Starting with this release, `shared_preload_libraries` is empty by default. Extensions such as `pg_tde` must be added manually.
+
+### Ubuntu 26.04 LTS support added
+
+Percona Distribution for PostgreSQL is available on Ubuntu 26.04 LTS (Noble Numbat's successor). Packages are provided for AMD64 and ARM64 architectures.
+
+### Added Quick Start guide
+
+Added a Quick Start Guide walking users through setting up Percona Distribution for PostgreSQL with minimal steps and linking to more advanced topics.
+
+### Tarball updates
+
+The binary tarballs for x86_64 and ARM64 architectures have been updated in this release. The following libraries and components have new versions:
+
+- postgres-common: 290
+- pgBouncer: 1.25.2
+- etcd: 3.5.30
+- pysyncobj: 0.3.15
+- haproxy: 2.8.23
+- patroni: 4.1.3
+- pgpool2: 4.7.1
+- postgis: 3.5.6
+- pg_gather: 33
+- pg_cron: 1.6.7
+- pg_tde: 2.2.0
+
+See [Install Percona Distribution for PostgreSQL from binary tarballs](../tarball.md) for the download links.
+
+### Addressed CVEs
+
+This release includes important security measures that address the following CVEs: TBD. For more details, see the [PostgreSQL 18.4 release notes](https://www.postgresql.org/docs/18/release-18-4.html).
+
+## Known Issues
+
+### For minor & major upgrades (RHEL only)
+
+During an upgrade on RHEL, you may encounter the following error:
+
+```bash
+Unknown Error occurred: Transaction test error:
+  file /usr/share/postgresql-common/server/postgresql.mk from install of percona-postgresql-common conflicts with file from package percona-postgresql-common-dev
+  file /usr/share/postgresql-common/t/040_upgrade.t from install of percona-postgresql-common conflicts with file from package percona-postgresql-common-dev
+```
+
+To resolve this, remove the `percona-postgresql-common-dev` package and reinstall it with the new intended upgraded PPG/PSP server.
+
+## MD5 Authentication Deprecated
+
+The md5 password authentication is deprecated now and will be removed in a future release.
+
+## Supplied third-party extensions
+
+Review each extension’s release notes for What’s new, improvements, or bug fixes.
+
+The following is the list of extensions available in Percona Distribution for PostgreSQL.
+
+| Extension | Version | Description |
+| --- | --- | --- |
+| [etcd :octicons-link-external-16:](https://etcd.io/) | 3.5.30 | A distributed, reliable key-value store for setting up highly available Patroni clusters |
+| [python-etcd :octicons-link-external-16:](https://python-etcd.readthedocs.io/en/latest/) | 0.4.5 | A Python client library for interacting with etcd |
+| [HAProxy :octicons-link-external-16:](https://www.haproxy.org/) | 2.8.23 | A high-availability and load-balancing solution |
+| [Patroni :octicons-link-external-16:](https://patroni.readthedocs.io/en/latest/) | 4.1.3 | A HA (High Availability) solution for PostgreSQL |
+| [PgAudit :octicons-link-external-16:](https://www.pgaudit.org/) | 18 | A detailed session or object audit logging via the standard logging facility provided by PostgreSQL |
+| [pgAudit set_user :octicons-link-external-16:](https://github.com/pgaudit/set_user) | 4.2.0 | Provides an additional layer of logging and control when unprivileged users must escalate roles for maintenance |
+| [pgBackRest :octicons-link-external-16:](https://pgbackrest.org/) | 2.58.0 | A backup and restore solution for PostgreSQL |
+| [pgBadger :octicons-link-external-16:](https://github.com/darold/pgbadger) | 13.2 | A fast PostgreSQL log analyzer |
+| [PgBouncer :octicons-link-external-16:](https://www.pgbouncer.org/) | 1.25.2 | A lightweight connection pooler for PostgreSQL |
+| [pg_cron :octicons-link-external-16:](https://github.com/citusdata/pg_cron) | 1.6.7 | A simple cron-based job scheduler for PostgreSQL |
+| [pg_gather :octicons-link-external-16:](https://github.com/jobinau/pg_gather) | v33 | An SQL script for running diagnostics on the health of a PostgreSQL cluster |
+| [pg_oidc_validator](https://github.com/Percona-Lab/pg_oidc_validator) | 1.0 | OAuth validator library for PostgreSQL 18 |
+| [pg_repack :octicons-link-external-16:](https://github.com/reorg/pg_repack) | 1.5.3 | Rebuilds PostgreSQL database objects |
+| [pg_stat_monitor](https://github.com/percona/pg_stat_monitor) | 2.3.2 | Collects and aggregates statistics for PostgreSQL and provides histogram information |
+| [pg_tde :octicons-link-external-16:](https://github.com/percona/pg_tde) | v2.2.0 | A PostgreSQL extension that provides Transparent Data Encryption (TDE) to protect data at rest |
+| [pg_vector](https://github.com/pgvector/pgvector) | v0.8.2 | A vector similarity search extension for PostgreSQL |
+| [pgpool2 :octicons-link-external-16:](https://git.postgresql.org/gitweb/?p=pgpool2.git;a=summary) | 4.7.1 | A middleware between PostgreSQL server and client for high availability, connection pooling, and load balancing |
+| [PostGIS :octicons-link-external-16:](https://github.com/postgis/postgis) | 3.5.6 | A spatial extension for PostgreSQL |
+| [PostgreSQL Commons :octicons-link-external-16:](https://salsa.debian.org/postgresql/postgresql-common) | 290 | PostgreSQL database-cluster manager. Supports multiple PostgreSQL versions and clusters simultaneously |
+| [wal2json :octicons-link-external-16:](https://github.com/eulerto/wal2json) | 2.6 | A PostgreSQL logical decoding JSON output plugin |
+
+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.
+
+Percona Distribution for PostgreSQL is also shipped with the [libpq](https://www.postgresql.org/docs/18/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."
diff --git a/docs/release-notes/release-notes.md b/docs/release-notes/release-notes.md
@@ -4,6 +4,7 @@ This page lists all release notes for Percona Server for PostgreSQL 18, organize
 
 ## 2026
 
+* [18.4.1](release-notes-v18.4.1.md) ({{date.18_4_1}})
 * [18.3.1](release-notes-v18.3.1.md) ({{date.18_3_1}})
 
 ## 2025
diff --git a/docs/sboms.md b/docs/sboms.md
@@ -18,6 +18,8 @@ SBOMs are available for:
     - [Ubuntu 22.04 (Jammy, aarch64)](https://downloads.percona.com/downloads/postgresql-distribution-{{pgversion}}/{{pgsubversion}}/binary/tarball/sbom-percona-postgresql-{{pgsubversion}}-jammy-aarch64.json)
     - [Ubuntu 24.04 (Noble, x86_64)](https://downloads.percona.com/downloads/postgresql-distribution-{{pgversion}}/{{pgsubversion}}/binary/tarball/sbom-percona-postgresql-{{pgsubversion}}-noble-x86_64.json)
     - [Ubuntu 24.04 (Noble, aarch64)](https://downloads.percona.com/downloads/postgresql-distribution-{{pgversion}}/{{pgsubversion}}/binary/tarball/sbom-percona-postgresql-{{pgsubversion}}-noble-aarch64.json)
+    - [Ubuntu 26.04 (Resolute, x86_64)](https://downloads.percona.com/downloads/postgresql-distribution-{{pgversion}}/{{pgsubversion}}/binary/tarball/sbom-percona-postgresql-{{pgsubversion}}-resolute-x86_64.json)
+    - [Ubuntu 26.04 (Resolute, aarch64)](https://downloads.percona.com/downloads/postgresql-distribution-{{pgversion}}/{{pgsubversion}}/binary/tarball/sbom-percona-postgresql-{{pgsubversion}}-resolute-aarch64.json)
 
 === "Red Hat Enterprise Linux (RHEL) and derivatives"
     - [RHEL 8 (x86_64)](https://downloads.percona.com/downloads/postgresql-distribution-{{pgversion}}/{{pgsubversion}}/binary/tarball/sbom-percona-postgresql-{{pgsubversion}}-ol8-x86_64.json)
diff --git a/docs/templates/pdf_cover_page.tpl b/docs/templates/pdf_cover_page.tpl
@@ -7,6 +7,6 @@
 {% if config.site_description %}
 <h1>{{ config.site_description }}</h1>
 {% endif %} 
-<h2>18.3.1 (March 02, 2026)</h2>
+<h2>18.4.1 (May 20, 2026)</h2>
 <!--<h3>Percona Technical Documentation Team</h3>-->
 
diff --git a/mkdocs.yml b/mkdocs.yml
@@ -74,6 +74,7 @@ nav:
   - Uninstall: uninstalling.md
   - Release notes:
       - "Release notes index": release-notes/release-notes.md
+      - "18.4.1": release-notes/release-notes-v18.4.1.md
       - "18.3.1": release-notes/release-notes-v18.3.1.md
       - "2025":
         - "18.1.1": release-notes/release-notes-v18.1.1.md
diff --git a/variables.yml b/variables.yml
@@ -1,14 +1,15 @@
 # PG Variables set for HTML output
 # See also mkdocs.yml plugins.with-pdf.cover_subtitle and output_path
 
-release: 'release-notes-v18.3.1'
-dockertag: '18.3'
-pgsubversion: '18.3'
+release: 'release-notes-v18.4.1'
+dockertag: '18.4'
+pgsubversion: '18.4'
 pgversion: '18'
-pspgversion: '18.3.1' #change version for release note update
+pspgversion: '18.4.1' 
 pgsmversion: '2.3.2'
 
-# Dates are automatically updated by CI on release merge
+
 date:
-  18_3_1: 2026-05-05
+  18_4_1: 2026-05-20
+  18_3_1: 2026-03-02
   18_1_1: 2025-11-28
