ecd722fb_t___Columns_Switched___Updated__GPLv3
[#] 10 [GPLv2] 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License. [GPLv3] 
Automatic Licensing of Downstream Users. Each time you redistribute a covered work, the recipient automatically receives a license from the original licensors, to propagate and modify that work, subject to this License, including any additional terms introduced through section 7. You may not impose any further restrictions on the recipients' exercise of the rights thus granted or affirmed, except (when modifying the work) in the limited ways permitted by section 7. You are not responsible for enforcing compliance by third parties to this License.
Groklaw - At Your Request, the GPLv2-GPL3 Chart - Columns Switched - Updated
GPLv3