Missing release for removing `redux-offline` about mattermost-redux

[amyblais]

cc @hmhealey / @lieut-data

[hmhealey]

Ah, we were worried that might happen. We unfortunately never set up mattermost-redux in a way that makes it easy to ensure backwards compatibility for things like this. We have some future plans for a safer replacement for mattermost-redux that will be provided to a plugin by the web app directly, but that won't be coming for a while.

While using the latest master doesn't feel great, that's probably your best bet for keeping createPost usable. Our web app referenced mattermost-redux in its package.json by a git commit instead of a published version until very recently, and many of our internally-maintained plugins do the same. In particular, our paid Incident Collaboration plugin points to the latest master, so you can trust we're not going to be making any more breaking changes to that any time soon.

[lauraseidler]

@hmhealey thanks for bringing some clarity!

I understand your reasoning, tho I would've personally wished for a note somewhere on this - when I saw this repo/package, I didn't even think that it might not be intended to be used this way, and I assumed it would still be stable while being migrated into the web app.

[hmhealey]

Funny you should mention that since it was the original vision of the package, but unfortunately, it got out of hand quickly with a huge amount of stuff being added that we couldn't ensure compatibility with.

Unfortunately, the redux-offline removal was an important performance improvement, and while we were aware it could break someone, we had kind of hoped the area it affected was small enough that it wouldn't actually affect anyone. We were definitely wrong there.

In the longer term, we'd like to get a better API for plugins to access Mattermost data that's easier to keep compatibility with (aka it'll be smaller, cleaner, and provided by the web app to plugins directly), but that's unfortunately not a priority at the moment. That said, I'll try to help out where I can to get things working.