Beta 2 is a pre-release. GitHub highlights it with an orange "Pre-release" badge. Always download executables from trusted developers on GitHub to avoid malware.
The developer of Rufus has indicated that future releases will focus on improving stability, adding support for new features, and enhancing compatibility with a wider range of ISOs. Some potential features on the horizon include improved support for Linux distributions and enhanced functionality for creating multiboot USB drives. rufus 3.16 beta 2 github
(Always scan with your antivirus, though the file is clean.) Beta 2 is a pre-release
A: Yes. Rufus is free and open-source software. adding support for new features