Disk Xray 2.8.1 Here
While you are specifically interested in version 2.8.1, the software has evolved significantly. According to the Disk Xray Version History on the App Store :
: Permanently erases sensitive data by overwriting files multiple times, making them unrecoverable even with advanced tools. Evolution and Version History Disk Xray 2.8.1
: Include specialized support for macOS Sequoia and Tahoe, along with advanced "Shredder" enhancements. User Experience and Reviews While you are specifically interested in version 2
: Was a maintenance release focused on compatibility and stability within the 2.x branch. User Experience and Reviews : Was a maintenance
: Speeds up performance by removing temporary junk files, such as web browser caches (Safari, Chrome, Firefox), application logs, and email attachments.
: Provides a visual breakdown of your storage, allowing you to identify "space hogs" by drilling down into specific folders or entire drives.