Asynchronous uploads (that do not block chatting)
Right now, when you upload a larger sized file you are blocked from chatting until the upload finishes.
It would be nice if the upload is handled separately so you can continue sending new chats while the upload is processed. Slack does this too.
Yan Yew Kay commented
I have this request too! Currently we use MM as our company messaging app. Our field colleague will snap high res pictures to MM. Each pic is around 6 to 8MB and in areas where there's only 3G connection, and about 4-5 pictures it takes a few minutes before he can send any messages.
It'll be good if the photos can be sent in the background while we can continue to chat.