3. While most 2.0-compatible drives are backwardly compatible with 1.1, it is generally advisable to avoid using 1.1 unless there is no other option (due to its slow speed).
4. Both bundles as a whole and packages individually can be versioned, and increases in the minor number are used to signify new features (but remaining backwardly compatible).
5. Both bundles as a whole and packages individually can be versioned, and increases in the minor number are used to signify new features (but remaining backwardly compatible).