PS-9468 Release notes for PS 8.4.3-3 (#427)

new file:   docs/release-notes/8.4.3-3.md
	modified:   docs/release-notes/release-notes-index.md
	modified:   mkdocs-base.yml
	modified:   variables.yml

Author: alina-derkach-oaza

docs/release-notes/8.4.3-3.md

@@ -0,0 +1,55 @@
+# Percona Server for MySQL 8.4.3-3 (2024-12-18)
+
+Get started with [Quickstart Guide for Percona Server for MySQL].
+
+[Percona Server for MySQL 8.4.3-3] includes all the features and bug fixes available in the MySQL 8.4.3 Community Edition in addition to enterprise-grade features developed by Percona.
+
+## Release highlights
+
+Improvements and bug fixes introduced by Oracle for MySQL 8.4.3 and included in Percona Server for MySQL are the following:
+
+* The query `SELECT * FROM sys.innodb_lock_waits;` now fetches only two locks per wait, instead of scanning all locks twice, improving performance under heavy load. Additionally, primary keys have been added to `DATA_LOCKS` and `DATA_LOCK_WAITS`. (Bug #100537, Bug #31763497)
+
+* Changes in MySQL 8.0.33 caused performance degradation for queries using joins on `InnoDB` tables due to refactoring of 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 8.4.3 release notes].
+
+## Bug fixes
+
+* [PS-9382](https://perconadev.atlassian.net/browse/PS-9382): After an upgrade, the telemetry daemon ran continuously. The telemetry daemon was manually stopped and the service was disabled. Adding `percona_telemetry_disable=1` to the configuration file and restarting MySQL led to the server becoming unresponsive and required a forced termination.
+
+* [PS-9453](https://perconadev.atlassian.net/browse/PS-9453): The `percona_telemetry` tool caused a long wait on `COND_thd_list` if the root user is absent.
+
+## Additional resources
+
+* Install [Percona Server for MySQL 8.4]
+
+* The [Percona Server for MySQL GitHub repository]
+
+* Download product binaries, packages, and tarballs at [Percona Software Downloads]
+
+* [Contribute to the documentation]
+
+* For [training], contact [Percona Training - Start learning now]
+
+[Quickstart Guide for Percona Server for MySQL]: ../quickstart-overview.md
+[Percona Server for MySQL 8.4.3-3]: https://www.percona.com/software/mysql-database/percona-server
+
+
+[Percona Server for MySQL 8.4]: ../installation.md
+
+[MySQL 8.4.3 release notes]: https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-3.html
+
+[Percona Server for MySQL GitHub repository]: https://github.com/percona/percona-server
+[Percona Software Downloads]: https://www.percona.com/downloads
+[Contribute to the documentation]: https://github.com/percona/psmysql-docs/blob/8.0/contributing.md
+[training]: https://www.percona.com/training
+[Percona Training - Start learning now]: https://learn.percona.com/contact-me

docs/release-notes/release-notes-index.md

@@ -1,5 +1,7 @@
 # Percona Server for MySQL {{vers}} release notes index
 
+* [Percona Server for MySQL 8.4.3-3 (2024-12-18)](8.4.3-3.md)
+
 * [Percona Server for MySQL 8.4.2-2 (2024-11-04)](8.4.2-2.md)
 
 * [Percona Server for MySQL 8.4.1](8.4.1.md)

mkdocs-base.yml

@@ -125,7 +125,7 @@ plugins:
   with-pdf: # https://github.com/orzih/mkdocs-with-pdf
           output_path: '_pdf/PerconaServer-8.4.pdf'
           cover_title: 'Percona Server Documentation'
-          cover_subtitle: 8.4.2-2 (2024-11-04)
+          cover_subtitle: 8.4.3-3 (2024-12-18)
           author: 'Percona Technical Documentation Team'
           cover_logo: docs/_static/pdf-logo.png
           debug_html: false
@@ -149,6 +149,7 @@ nav:
   - psmysql-pro.md
   - Release notes:
     - Release notes index: release-notes/release-notes-index.md
+    - release-notes/8.4.3-3.md
     - release-notes/8.4.2-2.md
     - release-notes/8.4.1.md
     - release-notes/8.4.0-1.md

variables.yml

@@ -1,9 +1,9 @@
 # variables for HTML output
 
-release: '8.4.2-2'
+release: '8.4.3-3'
 version: '8.4'
 vers: '8.4' # we are going to use it instead of version
 pkg: 'ps-84-lts'
-release_date: '2024-11-04'
-title_date: '2024-11-04'
+release_date: '2024-12-18'
+title_date: '2024-12-18'