This license allows others to rework, modify, and develop the work, even for commercial purposes, as long as authorship is indicated and derivative works are licensed under similar terms.
The licensed material and derivatives may be used for commercial purposes.
Modification
The licensed material may be modified.
Distribution
The licensed material may be distributed.
Private use
The licensed material may be used and modified in private.
Limitations
Trademark use
This license explicitly states that it does NOT grant trademark rights, even though licenses without such a statement probably do not grant any implicit trademark rights.
Liability
This license includes a limitation of liability.
Patent use
This license explicitly states that it does NOT grant any rights in the patents of contributors.
Warranty
This license explicitly states that it does NOT provide any warranty.
Conditions
License and copyright notice
A copy of the license and copyright notice must be included with the licensed material.
State changes
Changes made to the licensed material must be documented.
Same license
Modifications must be released under the same license when distributing the licensed material. In some cases a similar or related license may be used.