Open-source licenses allow other businesses to commercialize covered software. Work released under a permissive license can be incorporated into proprietary software. Permissive licenses permit the addition of new terms, including proprietary ones. Proprietary software has heavily integrated open-source code released under the Apache, BSD, and MIT licenses. Open core is a business model where developers release a core piece of software as open source and monetize a product containing it as proprietary software. The strong copyleft GPL is written to prevent distribution within proprietary software. Weak copyleft licenses impose specific requirements on derivative works that may allow the covered code to be distributed within proprietary software in certain circumstances.
Open-source licenses allow other businesses to commercialize covered software Work released under a permissive license can be incorporated into proprietary software Permissive licenses permit the addition of new terms including proprietary ones Proprietary software has heavily integrated open-source code released under the Apache BSD and MIT licenses Open core is a business model where developers release a core piece of software as open source and monetize a product containing it as proprietary software The strong copyleft GPL is written to prevent distribution within proprietary software Weak copyleft licenses impose specific requirements on derivative works that may allow the covered code to be distributed within proprietary software in certain circumstances