Related Clues:

• Almost-ready software products
• Buggy versions, usually
• They're on trial
• Not-quite-ready software
• Prerelease versions
• Versions for early adopters
• Some skilled workers in 'Brave New World'
• Pre-release programs
• Versions to be debugged
• Versions after alphas
• They’re made to get the bugs out
• To-be-released apps
• Trial stages
• Test versions of apps
• Letters after alphas