Upgrade Db2 servers

Upgrading to Db2 version 11.5 requires that you upgrade your existing Db2 servers.

Upgrading your Db2 server requires that you install a Db2 version 11.5 copy and then upgrade all the instances and databases to be able to run them under the Db2 version 11.5 copy.

You can directly upgrade existing Db2 version 10.5 and Db2 Version 11.1 instances and databases to Db2 version 11.5. Learn details, limitations about the upgrade process, and possible issues that you must be aware of in Upgrade essentials for Db2 servers. Refer to the upgrading Db2 server tasks for details on how to upgrade to Db2 version 11.5. In the upgrading Db2 server topics, the term pre-Db2 version 11.5 copy refers to Db2 version 10.5 or Db2 Version 11.1.

On Windows operating systems, you can automatically upgrade an existing pre-Db2 Version 11.5 copy. If you choose to upgrade your existing Db2 copy during installation, you need to only upgrade your databases after installation.

If your Db2 servers are running on a release before Db2 version 10.5, upgrade them first to Db2 version 10.5. It is recommended that you upgrade to the latest fix pack of either Db2 version 10.5 or Db2 Version 11.1 before upgrading to Db2 version 11.5.

Upgrading to Db2 version 11.5 is supported for the following Db2 products:
Table 1. Db2 database products supported for upgrade
Db2 Version Db2 product name
Version 11.1
  • Db2 Advanced Enterprise Server Edition
  • Db2 Enterprise Server Edition
  • Db2 Workgroup Server Edition
  • Db2 Direct Standard Edition
  • Db2 Direct Advanced Edition
  • Db2 Connect Enterprise Edition
  • Db2 Connect Unlimited Edition
  • Db2 Connect Application Server Edition
  • IBM® Db2 Performance Optimization Feature for Enterprise Server Edition
  • IBM Data Server Client
  • IBM Data Server Runtime Client
version 10.5
  • Db2 Advanced Enterprise Server Edition
  • Db2 Enterprise Server Edition
  • Db2 Workgroup Server Edition
  • Db2 Personal Edition
  • Db2 Express® Server Edition
  • Db2 Connect Enterprise Edition
  • Db2 Connect Unlimited Edition
  • Db2 Connect Application Server Edition
  • IBM Db2 Performance Optimization Feature for Enterprise Server Edition
  • Db2 Storage Optimization Feature
  • IBM Db2 Advanced Access Control Feature
  • IBM Db2 High Availability Feature for Express Edition
  • IBM Homogeneous Replication Feature for Db2 Enterprise Server Edition
  • IBM Data Server Client
  • IBM Data Server Runtime Client
Note: It is recommended that the Db2 server be at the same fix pack level as the clients.
For Db2 products not supported, refer to Deprecated or discontinued functionality that affects Db2 server upgrades.