SSPL
A software license introduced by MongoDB in 2018 that requires any party offering the protected software as a service to release the source code of the entire service stack. The Open Source Initiative has not certified it as an open-source license; it is classified as a source-available license.
Timeline (last 90 days)
MongoDB and Elastic later moved from AGPL to the more restrictive SSPL license, which sparked a broader controversy.
AGPL, GPL, and SSPL are open-source licenses that warrant close attention, while MIT, Apache 2.0, and the BSD family are generally commercially friendly.
The "open-core + cloud services" business model already has well-established precedents in products such as MongoDB and InfluxDB.
In 2021, Elastic changed Elasticsearch's license from Apache 2.0 to a dual license of SSPL and Elastic License.
MongoDB switched from the AGPL to its self-created SSPL license in 2018.
SSPL (Server Side Public License) was introduced by MongoDB in 2018 and requires any company providing the software as a service to open-source its entire service stack; this provision was deemed by OSI to not conform to the open source definition.
For personal open-source projects, choosing a traditional OSI-certified license is safer than opting for newer licenses such as SSPL or BSL.
All Facts (8)
SSPL (Server Side Public License) was introduced by MongoDB in 2018 and requires any company providing the software as a service to open-source its entire service stack; this provision was deemed by OSI to not conform to the open source definition.
60%UnverifiedMongoDB and Elastic later moved from AGPL to the more restrictive SSPL license, which sparked a broader controversy.
50%UnverifiedAGPL, GPL, and SSPL are open-source licenses that warrant close attention, while MIT, Apache 2.0, and the BSD family are generally commercially friendly.
50%UnverifiedThe "open-core + cloud services" business model already has well-established precedents in products such as MongoDB and InfluxDB.
50%UnverifiedFor personal open-source projects, choosing a traditional OSI-certified license is safer than opting for newer licenses such as SSPL or BSL.
50%UnverifiedIn 2021, Elastic changed Elasticsearch's license from Apache 2.0 to a dual license of SSPL and Elastic License.
50%UnverifiedMongoDB switched from the AGPL to its self-created SSPL license in 2018.
50%Unverified2021年Elastic公司因AWS将其Elasticsearch包装为云服务竞争，将许可证从Apache-2.0改为ELv2，催生了OpenSearch等社区分叉项目
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