In work item tracking, there are several system fields that always exist in every work item type. These fields have both a reference name and a friendly name.
The friendly name for some core fields have changed. They are:
There should be no implications for these name changes. These friendly names have always been available to be modified by the customer (using witfields in 2005/2008 versions, and witadmin in 2010 versions). All parts of TFS refer to the reference name, which remains unchanged.
There are a few exceptions to this:
NOTE: If you need to resolve the naming conflict, you can either rename the field in the work item type definition to match the server's or change the server's name using witadmin changefield /name.
If you do nothing, you will probably be just fine.
However, if you are nervous, than after installing the RC or later build, then use witadmin to rename the fields to the new name, and update any process templates you are using that reference the old name. The MSF Agile/CMMI process templates have been updated to reflect the new name for versions RC or later.