Comment by pcthrowaway
8 months ago
Mattermost is fully licensed under AGPLv3 terms, and portions can be used under Apache 2 terms as well.
I'm not sure why people would say they're not open source.
It's true there's no community-led edition, but that's because no one has taken the initiative to create one yet.
Wrong. Mattermost is dual licensed with proprietary licenses, requiring a CLA to contribute.
Additionally another thing called Mattermost, made by the same people, isn’t open source at all, under any free software license.