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Upgrading and migrating
Learn how to upgrade and migrate data for the product.
Upgrade DevOps Code ClearCase®
Read these topics for information about planning your upgrade, installing software, and configuring your environment after upgrading.
Plan your upgrade
Before you begin upgrading the DevOps Code ClearCase® and DevOps Code ClearCase MultiSite software, learn about the upgrade process, complete any prerequisite tasks, and create an upgrade plan.
Requirements
Review the requirements information to identify system requirements, prerequisite tasks, and other information needed to successfully install or upgrade DevOps Code ClearCase® and DevOps Code ClearCase MultiSite
Networking requirements and performance information
Review requirements for IPv6 support, domain configuration for client and server hosts on Windows, and concurrent access limitations for DevOps Code ClearCase® servers on Windows.
Link-local IPv6 addresses are not supported
Use Global addresses instead of link-local addresses.

Link-local IPv6 addresses are not supported

Use Global addresses instead of link-local addresses.

Link-local addresses are ambiguous and cannot be used by DevOps Code ClearCase® to resolve link-local IPv6 addresses. ClearCase relies on host name and address translation APIs. These standard APIs do not provide adequate information to ClearCase for link-local IPv6 addresses. Global addresses are not ambiguous. The host name API provides the information required for DevOps Code ClearCase to use these addresses. Set up your DNS and hosts tables to return global IPv6 addresses for your ClearCase nodes.