# Upgrade

- [MySQL Upgrade from 8.0.4 to 8.4.x  (Ubuntu)](/deployment-and-maintenance/upgrade/mysql-upgrade-from-8.0.4-to-8.4.x-ubuntu.md)
- [MySQL Upgrade from 8.0.4 to 8.4.x (RHEL) Internet](/deployment-and-maintenance/upgrade/mysql-upgrade-from-8.0.4-to-8.4.x-rhel-internet.md)
- [MySQL Upgrade to 8.4.x  (Windows)](/deployment-and-maintenance/upgrade/mysql-upgrade-to-8.4.x-windows.md)
- [MySQL Upgrade from 8.0.4 to 8.4.x (AWS)](/deployment-and-maintenance/upgrade/mysql-upgrade-from-8.0.4-to-8.4.x-aws.md)
- [MySQL Upgrade from 8.0 to 8.4.x  (Azure)](/deployment-and-maintenance/upgrade/mysql-upgrade-from-8.0-to-8.4.x-azure.md)
- [Elasticsearch Upgarde (Ubuntu)](/deployment-and-maintenance/upgrade/elasticsearch-upgarde-ubuntu.md)
- [Elasticsearch Upgrade (Windows)](/deployment-and-maintenance/upgrade/elasticsearch-upgrade-windows.md)
- [Java 17.x Upgrade (Windows)](/deployment-and-maintenance/upgrade/java-17.x-upgrade-windows.md)
- [Tomcat Upgrade from 9.x to 10.1.x (Windows)](/deployment-and-maintenance/upgrade/tomcat-upgrade-from-9.x-to-10.1.x-windows.md)
- [Tomcat Upgrade from 9.x to 10.1.x (Linux)](/deployment-and-maintenance/upgrade/tomcat-upgrade-from-9.x-to-10.1.x-linux.md)