Upgrading both the VM software and virtual hardware requires some downtime for your instance, so be sure to plan the upgrade in advance. You can schedule a maintenance window to notify your users.
GitHub Enterprise 2.11 includes an upgrade to Elasticsearch 2.4. To prepare the appliance for upgrade to 2.11 or later, you'll need to use the migration script.
Before upgrading GitHub Enterprise, review these recommendations and requirements.
Upgrade GitHub Enterprise to get the latest features and security updates.
Release notes list new features, improvements, and changes in a GitHub Enterprise release.
You can enable automatic update checks so that your GitHub Enterprise instance checks for and downloads the latest GitHub Enterprise release.
You can increase or change the amount of storage available for Git repositories, databases, search indexes, and other persistent application data.
To add CPU or memory resources to an existing GitHub Enterprise instance, shut down the instance and use the underlying virtual platform's tools to allocate the resources to the virtual machine. The newly allocated resources are automatically recognized on boot and no additional configuration is necessary.
To migrate from GitHub Enterprise 11.10.x to 2.1.23, you'll need to set up a new appliance instance and migrate data from the previous instance.