To check the status of individual files for modifications, right-click files in the project and select Source Control > Check for Modifications. Use this to find out if the repository version has moved ahead.
With SVN, this option contacts the repository to check for external modifications. The
project compares the revision numbers of the local file and the repository version. If
the revision number in the repository is larger than that in the local sandbox folder,
then the project displays
(not latest) next to the revision number of
the local file.
If your local file is not the latest version, get the latest revisions from the repository by clicking Update. See Update Revisions of Project Files. You might need to resolve conflicts after updating. See Resolve Conflicts and Compare Revisions.
To check for locally modified files, use Refresh instead. See Refresh Status of Project Files.