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Mattermost is no longer Open-Source (github.com)

submitted 4 hours ago by vegetaaaaaaa@lemmy.world to c/selfhosted@lemmy.world

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[–] stuner@lemmy.world 12 points 1 hour ago (2 children)

Eh, that post title is quite sensationalistic.

Nothing regarding the license has changed in the last 2 years.
It seems like they consider the non-enterprise code to be licensed under the AGPL:

Thank you for the community discussion around this topic. I do recognize that our licensing strategy doesn't offer the clarity the community would like to see, but at this time we are not entertaining any changes as such.

UPDATE Feb 2, 2026: To be specific, our license is using standard open source licenses, a reciprocal AGPL license and a permissive Apache v2 license for other areas. Both are widely used open source licenses and have multiple interpretations of how they apply, as showcased in this thread.

When we say we don’t “offer the clarity the community would like to see”, that refers specifically to the many statements in this thread where different contributors are confused by other people’s comments and statements.

For LICENCE.txt itself, anyone can read the history file and see we haven’t materially changed it since the start of the project.

If you’re modifying the core source code under the reciprocal license you share those changes back to the open source community. If you’d like to modify the open source code base without sharing back to the community, you can request a commercial license for the code under commercial terms.

Maybe we can hold the pitchforks a while longer, unless they actually make a negative change.

[–] IanTwenty@piefed.social 5 points 1 hour ago (1 children)

The contention is that Mattermost say it's licensed under AGPL but then they add conditions which are incompatible with that license. So it seems they want to give appearance of AGPL but not give the actual rights that come with it. So therefore it's not AGPL.

[–] 73ms@sopuli.xyz 2 points 55 minutes ago (1 children)

which conditions on top of AGPL are they adding?

[–] wilo108@lemmy.ml 1 points 47 minutes ago

My understanding was (perhaps wrong?) that the "Mattermost Team Edition" is offered under the AGPL, and then the "Enterprise" Editions (starting with the "Entry Edition") have additional restrictions (including the 10k message limit in the "Entry Edition" that everyone's been talking about). They do a good job of hiding the "Team Edition" (it's almost like the don't really want to have to offer an open-source editions... 🤔), but it is there if you can find it. https://docs.mattermost.com/product-overview/editions-and-offerings.html#mattermost-team-edition

[–] scrubbles@poptalk.scrubbles.tech 2 points 1 hour ago

I Will never understand why the open source community hates the GPL license. Maybe they just haven't seen themselves how big corporations taking advantage of free individual independent developers. I still remember the core.js developer, whose code is in pretty much every giant framework out there basically begging for any sort of income for his work while his family was going hungry in Eastern Europe. Angular, react, all major frameworks absolutely depend on it and never gave them anything.