Differences Between Repository 1.0 and Repository 2.0

Microsoft® Repository users should be aware of the following information about release 2.0:

Microsoft Repository version 2.0 is backward-compatible with version 1.0 functionality and interfaces. If all of the applications using a repository database use only version 1.0 functionality, no incompatibilities will occur. Likewise, if all the applications using a repository database are version- and workspace-aware, they should be successful. Mixing applications that are version-aware with applications that are not version- and workspace-aware on the same repository database is not recommended.
The Microsoft Repository 2.0 SQL schema is an extension of the Microsoft Repository 1.0 schema because of the introduction of versioning. Applications that bypass repository interfaces to access SQL tables directly may have to modify queries or provide views for backward compatibility.
The migration wizard (MigRepV2.exe) converts Microsoft Repository underlying database information from version 1.0 to version 2.0 (SQL to SQL, and Jet to Jet). You must have the Microsoft Repository engine version 2.0 (V2 engine) registered before running the migration wizard. Notice that the migration is one way only, from version 1.0 to version 2.0.
Microsoft Repository 2.0 provides no support for the WRITETHROUGH mode of transaction execution.
Microsoft Repository 2.0 supports Intel® x86 and Alpha platforms.

Differences between Repository 1.0 and Repository 2.0 are discussed in detail in the following sections: