Since v2.6 there have been two updates. They bring bug fixes and minor improvements that make the setup process a bit more pleasant.
Combined changelog for version 2.7 and 2.8:
- Added option to re-download setup files during installation.
- Added option to remove setup files during uninstallation.
- Setup now checks if pak0.pak exists at copy destination before copying it.
- Fixed the bug where file copies (pak0.pak/pak1.pak) were displayed (Explorer copy files) during setup.