Merge pull request #184 from percona/DISTMYSQL-489

DISTMYSQL-489 [DOC] Release notes for PDPS 8.0.40
percona · Jan 2, 2025 · d495fd9 · d495fd9
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diff --git a/docs/copyright.md b/docs/copyright.md
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 ## Documentation licensing
 
-Percona Distribution for MySQL documentation is (C)2009-2024 Percona LLC and/or its affiliates and is distributed under the [Creative Commons Attribution 4.0 International License](https://creativecommons.org/licenses/by/4.0/).
+Percona Distribution for MySQL documentation is (C)2009-2025 Percona LLC and/or its affiliates and is distributed under the [Creative Commons Attribution 4.0 International License](https://creativecommons.org/licenses/by/4.0/).
 
diff --git a/docs/release-notes-ps-v8.0.40.md b/docs/release-notes-ps-v8.0.40.md
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+# Percona Distribution for MySQL 8.0.40 using Percona Server for MySQL (2025-01-02)
+
+Percona Distribution for MySQL is the most stable, scalable, and secure open source MySQL distribution, with two download options: one based on Percona Server for MySQL and one based on Percona XtraDB Cluster. [Install Percona Distribution for MySQL](installing.md).
+
+This release is based on [Percona Server for MySQL 8.0.40-31](https://www.percona.com/doc/percona-server/8.0/release-notes/8.0.40-31.html) that includes all the features and bug fixes available in the [MySQL 8.0.40 Community Edition](https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-40.html) and enterprise-grade features developed by Percona.
+
+## Release highlights
+
+Improvements and bug fixes provided by Oracle for MySQL 8.0.40 and included in Percona Server for MySQL are the following:
+
+* Changes in MySQL 8.0.33 caused queries using joins on InnoDB tables to perform worse because refactoring affected functions that were previously inline.
+
+* The server crashed when it tried to update columns altered with NULL as the default value using the INSTANT algorithm.
+
+* The server could crash during DELETE or UPDATE operations if a column was dropped using the INSTANT algorithm.
+
+* Importing a table created under a different sql_mode sometimes led to schema mismatches, risking data corruption in secondary indexes. The fix now includes integrity checks on the imported tablespace.
+
+* Rebuilding tables with secondary indexes required more file I/O operations compared to MySQL 8.0.26, which slowed down query performance.
+
+Find the complete list of bug fixes and changes in the [MySQL 8.0.40 Release Notes](https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-40.html).
+
+## Supplied components
+
+Review each component’s release notes for What’s new, improvements, or bug fixes. The following is a list of the components supplied with the Percona Server for MySQL-based variation of the Percona Distribution for MySQL:
+
+| Component           | Version   | Description                                |
+| ------------------- | --------- | -------------------------------------------|
+| Orchestrator        | [3.2.6-15](https://github.com/percona/orchestrator/releases/tag/v3.2.6-15)     | The replication topology manager for Percona Server for MySQL|
+| ProxySQL            | [2.7.1-1](https://docs.percona.com/proxysql/2.7.1-1.html)     | A high performance, high-availability, protocol-aware proxy for MySQL|
+| Percona XtraBackup  | [8.0.35-31](https://docs.percona.com/percona-xtrabackup/8.0/release-notes/8.0/8.0.35-31.0.upd.html)| An open-source hot backup utility for MySQL-based servers|
+| Percona Toolkit     | [3.7.0](https://docs.percona.com/percona-toolkit/release_notes.html#v3-6-0-released-2024-12-23)     | The set of scripts to simplify and optimize database operation|
+| MySQL Shell         | [8.0.40](https://dev.mysql.com/doc/relnotes/mysql-shell/8.0/en/news-8-0-40.html)    | An advanced client and code editor for MySQL Server|
+| MySQL Router        | [8.0.40](https://dev.mysql.com/doc/relnotes/mysql-router/8.0/en/news-8-0-40.html)    | Lightweight middleware that provides transparent routing between your application and back-end MySQL servers|
diff --git a/docs/release-notes.md b/docs/release-notes.md
@@ -2,6 +2,8 @@
 
 ## Percona Distribution for MySQL using Percona Server for MySQL
 
+* [Percona Distribution for MySQL 8.0.40 using Percona Server for MySQL (2025-01-02)](release-notes-ps-v8.0.40.md)
+
 * [Percona Distribution for MySQL 8.0.39 using Percona Server for MySQL (2024-10-08)](release-notes-ps-v8.0.39.md)
 
 * [Percona Distribution for MySQL 8.0.38 using Percona Server for MySQL](release-notes-ps-v8.0.38.md)

diff --git a/mkdocs-base.yml b/mkdocs-base.yml
@@ -125,7 +125,7 @@ plugins:
   with-pdf: # https://github.com/orzih/mkdocs-with-pdf
           output_path: '_pdf/PerconaDistributionforMySQL.pdf'
           cover_title: 'Percona Distribution for MySQL Documentation'
-          cover_subtitle: 8.0.39 (2024-12-02)
+          cover_subtitle: 8.0.40 (2025-01-02)
           author: 'Percona Technical Documentation Team'
           cover_logo: docs/_images/pdf-logo.png
           debug_html: false
@@ -149,6 +149,7 @@ nav:
   - Release notes:
     - Release notes index: release-notes.md
     - Percona Distribution for MySQL using Percona Server for MySQL:
+      - release-notes-ps-v8.0.40.md
       - release-notes-ps-v8.0.39.md
       - release-notes-ps-v8.0.38.md
       - release-notes-ps-v8.0.37.md
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		## Documentation licensing

		Percona Distribution for MySQL documentation is (C)2009-2024 Percona LLC and/or its affiliates and is distributed under the [Creative Commons Attribution 4.0 International License](https://creativecommons.org/licenses/by/4.0/).
		Percona Distribution for MySQL documentation is (C)2009-2025 Percona LLC and/or its affiliates and is distributed under the [Creative Commons Attribution 4.0 International License](https://creativecommons.org/licenses/by/4.0/).