If there are any schema changes in the Jazz™ Team Server that you are upgrading to,
your Jazz administrator must
migrate the data of repository workspace. After data migration of
the repository workspace, you must migrate your sandbox data.
About this task
If your Jazz administrator
has migrated the repository workspace to the newer version of Jazz Team Server, you will get the
following message, when you open a shared solution:

To migrate your repository
workspace, click Migrate Now. If you want to
migrate the data later, click Migrate Later.
You can also repair the metadata by navigating to and clicking Repair Metadata.
Note: For
more information about migration, see Migrating Jazz repository after upgrading Jazz Team Server.