You don't need to update minecraft classic, just put minecraft in multiplayer mode to be able to play with our friends. Please do not remove the multiplayer mode so that we can play the classic minecraft with our friends.

It's not possible to play in multiplayer on classic.minecraft.net, despite such a function existing. When someone uses the link to join someone else's world, the page is simply blank and does not load.

It is not possible to send invitations in minecraft classic to our friends, the page is blank for them when they open the invitation sent to them.