Similar to CC-BY-4.0 but requires derivatives be distributed under the same or a similar, compatible license. Frequently used for media assets and educational materials. A previous version is the default license for Wikipedia and other Wikimedia projects. Not recommended for software.
Attribution-ShareAlike 4.0 International=======================================================================Creative Commons Corporation ("Creative Commons") is not a law firm anddoes not provide legal services or legal advice. Distribution ofCreative Commons public licenses does not create a lawyer-client orother relationship. Creative Commons makes its licenses and relatedinformation available on an "as-is" basis. Creative Commons gives nowarranties regarding its licenses, any material licensed under theirterms and conditions, or any related information. Creative Commonsdisclaims all liability for damages resulting from their use to thefullest extent possible.Using Creative Commons Public LicensesCreative Commons public licenses provide a standard set of terms andconditions that creators and other rights holders may use to shareoriginal works of authorship and other material subject to copyrightand certain other rights specified in the public license below. 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More_considerationsfor the public:wiki.creativecommons.org/Considerations_for_licensees=======================================================================Creative Commons Attribution-ShareAlike 4.0 International PublicLicenseBy exercising the Licensed Rights (defined below), You accept and agreeto be bound by the terms and conditions of this Creative CommonsAttribution-ShareAlike 4.0 International Public License ("PublicLicense"). To the extent this Public License may be interpreted as acontract, You are granted the Licensed Rights in consideration of Youracceptance of these terms and conditions, and the Licensor grants Yousuch rights in consideration of benefits the Licensor receives frommaking the Licensed Material available under these terms andconditions.Section 1 -- Definitions.a. 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Copyright and Similar Rights means copyright and/or similar rightsclosely related to copyright including, without limitation,performance, broadcast, sound recording, and Sui Generis DatabaseRights, without regard to how the rights are labeled orcategorized. For purposes of this Public License, the rightsspecified in Section 2(b)(1)-(2) are not Copyright and SimilarRights.e. Effective Technological Measures means those measures that, in theabsence of proper authority, may not be circumvented under lawsfulfilling obligations under Article 11 of the WIPO CopyrightTreaty adopted on December 20, 1996, and/or similar internationalagreements.f. Exceptions and Limitations means fair use, fair dealing, and/orany other exception or limitation to Copyright and Similar Rightsthat applies to Your use of the Licensed Material.g. License Elements means the license attributes listed in the nameof a Creative Commons Public License. The License Elements of thisPublic License are Attribution and ShareAlike.h. Licensed Material means the artistic or literary work, database,or other material to which the Licensor applied this PublicLicense.i. Licensed Rights means the rights granted to You subject to theterms and conditions of this Public License, which are limited toall Copyright and Similar Rights that apply to Your use of theLicensed Material and that the Licensor has authority to license.j. Licensor means the individual(s) or entity(ies) granting rightsunder this Public License.k. Share means to provide material to the public by any means orprocess that requires permission under the Licensed Rights, suchas reproduction, public display, public performance, distribution,dissemination, communication, or importation, and to make materialavailable to the public including in ways that members of thepublic may access the material from a place and at a timeindividually chosen by them.l. 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For the avoidance of doubt, whereExceptions and Limitations apply to Your use, this PublicLicense does not apply, and You do not need to comply withits terms and conditions.3. Term. The term of this Public License is specified in Section6(a).4. Media and formats; technical modifications allowed. TheLicensor authorizes You to exercise the Licensed Rights inall media and formats whether now known or hereafter created,and to make technical modifications necessary to do so. TheLicensor waives and/or agrees not to assert any right orauthority to forbid You from making technical modificationsnecessary to exercise the Licensed Rights, includingtechnical modifications necessary to circumvent EffectiveTechnological Measures. For purposes of this Public License,simply making modifications authorized by this Section 2(a)(4) never produces Adapted Material.5. Downstream recipients.a. Offer from the Licensor -- Licensed Material. 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For example, it may bereasonable to satisfy the conditions by providing a URI orhyperlink to a resource that includes the requiredinformation.3. If requested by the Licensor, You must remove any of theinformation required by Section 3(a)(1)(A) to the extentreasonably practicable.b. ShareAlike.In addition to the conditions in Section 3(a), if You ShareAdapted Material You produce, the following conditions also apply.1. The Adapter's License You apply must be a Creative Commonslicense with the same License Elements, this version orlater, or a BY-SA Compatible License.2. You must include the text of, or the URI or hyperlink to, theAdapter's License You apply. You may satisfy this conditionin any reasonable manner based on the medium, means, andcontext in which You Share Adapted Material.3. 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WHERE DISCLAIMERS OF WARRANTIES ARE NOTALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLETO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION,NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT,INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES,COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE ORUSE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEENADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, ORDAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL ORIN PART, THIS LIMITATION MAY NOT APPLY TO YOU.c. The disclaimer of warranties and limitation of liability providedabove shall be interpreted in a manner that, to the extentpossible, most closely approximates an absolute disclaimer andwaiver of all liability.Section 6 -- Term and Termination.a. This Public License applies for the term of the Copyright andSimilar Rights licensed here. However, if You fail to comply withthis Public License, then Your rights under this Public Licenseterminate automatically.b. Where Your right to use the Licensed Material has terminated underSection 6(a), it reinstates:1. automatically as of the date the violation is cured, providedit is cured within 30 days of Your discovery of theviolation; or2. upon express reinstatement by the Licensor.For the avoidance of doubt, this Section 6(b) does not affect anyright the Licensor may have to seek remedies for Your violationsof this Public License.c. For the avoidance of doubt, the Licensor may also offer theLicensed Material under separate terms or conditions or stopdistributing the Licensed Material at any time; however, doing sowill not terminate this Public License.d. Sections 1, 5, 6, 7, and 8 survive termination of this PublicLicense.Section 7 -- Other Terms and Conditions.a. 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：Code submit frequency
：React/respond to issue & PR etc.
：Well-balanced team members and collaboration
：Recent popularity of project
：Star counts, download counts etc.