From c3e563c98cbbf709c53473b0dfba33eb1453f613 Mon Sep 17 00:00:00 2001 From: Tulir Asokan Date: Mon, 12 Apr 2021 12:06:46 +0300 Subject: [PATCH] Add potential issues section --- proposals/2828-restrict-user-ids.md | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/proposals/2828-restrict-user-ids.md b/proposals/2828-restrict-user-ids.md index 4ba546ae..4a7cb942 100644 --- a/proposals/2828-restrict-user-ids.md +++ b/proposals/2828-restrict-user-ids.md @@ -33,6 +33,12 @@ create a new room version that restricts user IDs in event auth. Something like [MSC1228](https://github.com/matrix-org/matrix-doc/pull/1228) will eventually overhaul the entire user ID system anyway. +## Potential issues +Existing users with user IDs outside the historical user ID grammar would be +unable to join rooms after this new room version. However, there shouldn't be +any actual users with such user IDs, as normal registrations have always +required usernames to follow the historical grammar. + ## Unstable prefix Implementations can use `net.maunium.msc2828` as the room version until this proposal is added to an official room version.