The information in this topic applies when upgrading from any legacy Blackboard system.
Blackboard Learn 9.1 Service Pack 8 (SP 8) and later require a 64-bit operating system. Clients upgrading must upgrade their operating system before upgrading the application.
Blackboard Learn Release 9.1 is the first release to offer an entire application and database footprint using 64-bit addressable memory. To take advantage of more addressable memory, Blackboard strongly encourages clients to deploy using 64-bit operating systems (OSs) and sub components (Java and SQL Server or Oracle).
Upgrading Blackboard Academic Suite 8.0 or Blackboard Learn 9.0 on existing hardware to Blackboard Learn 9.1 must occur before migration. Database restore to a 64-bit machine must be completed before running the application server upgrade.
To learn about migrating a Blackboard Learn 9.1 instance operating on a Windows 32-bit platform to Blackboard Learn 9.1 operating on a Windows 64-bit platform, see 32-bit to 64-bit Cross Platform Migration for Windows.
To learn about migrating a Blackboard Learn 9.1 instance operating on a UNIX 32-bit platform to Blackboard Learn 9.1 operating on a UNIX 64-bit platform, see 32-bit to 64-bit Cross Platform Migration for UNIX.