Updates and revisions

This guide includes the following documentation changes.

Changes in version 7.5.3

  • Added a note that the latest available service pack must be installed before starting the upgrade.
  • Restructured the content to make it clearer which topics apply to upgrades from 7.3.x and 7.4.x versions, and which topics apply to upgrades from version 7.5.x versions.
  • Added information on the Apache Cassandra port changes when upgrading from API Gateway 7.5.x versions. For details, see Open the new Apache Cassandra client port in the firewall.
  • Added information on how to upgrade Apache Cassandra from version 2.2.5 to 2.2.8. This is an optional step that you can perform after upgrading from API Gateway 7.5.x versions. For details, see Upgrade Apache Cassandra.
  • Added information on zero downtime upgrade sample scripts. For details, see Zero downtime upgrade.

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