SQL Data Compare 12 will not support SQL Server 2000.
SQL Data Compare 11 will remain available to use with SQL Server 2000, although it will not receive any more updates.
After the release of SQL Compare and SQL Data Compare 12, the other tools using the SQL Compare engine will be upgraded in their next major version release, and also end their support for SQL Server 2000. These tools are: SQL Data Generator, SQL Doc, SQL Dependency Tracker, and the SDK.
SQL Backup, SQL Monitor, and SQL Multi Script are not affected by this announcement.