Vice President of the Open Source Initiative here.
MongoDB submitted this new license for approval by OSI at the same time that they announced that they'd relicensed all of their code. We wish they'd started the process prior to the announcement, but what's done is done. The result, however, is that at this moment, MongoDB is under a non-approved license and therefore IS NOT OPEN SOURCE.
As the license review process only started this morning, there's no way to estimate how long the process will take. There also is no guarantee that the license will be found to obey the Open Source Definition, and therefore no guarantee that it will be approved.
Hopefully this will all be resolved soon, but there are far too many question marks around this license (and therefore also around any software using it) right now. It's probably best to limit your legal risk by not upgrading to an SSPL-licensed MongoDB at this point. The previous AGPL-licensed version should always be available.
MongoDB submitted this new license for approval by OSI at the same time that they announced that they'd relicensed all of their code. We wish they'd started the process prior to the announcement, but what's done is done. The result, however, is that at this moment, MongoDB is under a non-approved license and therefore IS NOT OPEN SOURCE.
As the license review process only started this morning, there's no way to estimate how long the process will take. There also is no guarantee that the license will be found to obey the Open Source Definition, and therefore no guarantee that it will be approved.
Hopefully this will all be resolved soon, but there are far too many question marks around this license (and therefore also around any software using it) right now. It's probably best to limit your legal risk by not upgrading to an SSPL-licensed MongoDB at this point. The previous AGPL-licensed version should always be available.