Notes: NSIS 2.09 is released. This release contains a fix for a bug introduced in the last version that prevented $INSTDIR from being deleted by the uninstaller and the usual collection of bug fixed, improvements and translation updates.
Fixed a bug introduced in 2.08, that prevented uninstallers from deleting $INSTDIR
Fixed a bug that caused "C:/ " to be considered a valid installation directory, even without AllowRootDirInstall