I would like to add a string to the header and purpose every time it is changed via a plugin, but this is currently not possible as there is no hook for channel metadata in the plugin API.

Allow plugins to add to the settings menu, much like they can add to the System Console settings.

Add to jira plugin features to notify about new comments, description changes, attachments changes in a ticket.

Gitlab projects are more often than not shielded off into private repos.
Given that Mattermost easily installs along with Gitlab (using the Omnibus installer, just by providing the url mattermost can listen on) it would make a lot of sense to have that info there; instead of a very unhelpful & confusing "Sign in" metadata

it is often useful to know when your contacts are chatting from a PC or from their smartphones.

Please create an integration with Figma

It is possible to secure self-managed Mattermost deployments w/ Fyde (www.fyde.com)'s unified security and trusted access platform.

Fyde provides granular access controls for enterprise apps (i.e. Mattermost) and workloads, and continuously monitors access requests.

With Fyde, you can roll-out strong device authentication, improve security posture of unmanaged devices and remediate configuration errors.

Right now when you click to Add new + icon beside direct message it show you directory where it show all user registered on the server.

So to protect that, a option to hide that directory will be added. To add other user you have type email address of that user from which he registered on your server.

More like whatsapp where you can msg people whome phone number you have.

If plugins had a hook when someone performs a search, they could customise the search experience, e.g. by querying other systems and offering those results too (maybe as an ephemeral post).

I would love to use mattermost search as our cross-platform search provider...

Add integration for YouTrack by JetBrains

From: https://github.com/mattermost/mattermost-server/issues/10463

Please allow incoming webhooks to use response_type. I'm looking at making a bot that would allow others to roleplay. This bot functions by watching the channel, and when it sees a message with a trigger that has been set up with it, uses a incoming webhook to post a message with a custom picture and username before deleting the triggering message.
This gives the effect of someone being able to play different characters, especially when paired with: https://mattermost.uservoice.com/forums/306457-general/suggestions/37237117-allow-webhooks-to-post-to-reply-threads

From: https://github.com/mattermost/mattermost-server/issues/10463

At the moment, the "comment" value for response_type will only trigger for the triggering message, even if that message is part of a thread. Maybe a value of "thread" can tell it to reply in the thread rather than creating another thread just to respond to the trigger message.

Provide access to Microsoft Azure blob storage through shared access signatures / keys.

Leverage OpenShift’s OAuth IDP to login to OpenShift.

Instead of relying on a url path for a profile picture in a webhook integration, it would be really useful to have a file upload path.

Thank you!

Please could you add types so that developping of plugins/integrations/hooks and such may benefit from the power of type verification and auto completion.
It would, specially on API dev, be a strong plus ;)