Review

• Major Free Software licenses are:
  • GPL
    • Copyleft license
  • LGPL
    • Semi-copyleft license
  • Apache License
    • Non-copyleft license
  • BSD License
    • "new" and "old" versions
    • Non-copyleft licenses
• License compatibility
  • allows works under different licenses to be combined
  • GPL-compatible licenses can't add restrictions
• It's easy to license software as Free Software
• You can't retroactively relicense Free Software
  

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