All directories containing system code are named as:
For example, if the compressed file is named openjms-0.7.7-alpha-3.tgz then the <versionid> would be 0.7.7-alpha-3. Note that the exact id string is used, including occurrences of "-", and no "tidying" has been done, such as to make it 0.7.7.
By and large <versionid> should not be changed from what is used by the developers although note that the version identification used by developers is not always what is used for naming the compressed file. In such cases, use what the developers use is what is used in the corpus.