April 2025 releases // WhatsApp store migration and more Meowlnir commands

This was a quieter month, so there aren't that many exciting changes. Various bridges got bugfixes, Meowlnir got a bunch of new commands and gomuks can now create rooms.

Bridges

The WhatsApp bridge includes a somewhat dangerous change to the way Signal sessions are stored, which is necessary as WhatsApp is starting to move away from using phone numbers as internal user identifiers. Users on the old bridge version may find certain groups stop working until they update.

Discord had accumulated a bunch of bugfixes, so I decided to make another release of the old version. Unfortunately there hasn't been any progress on the megabridge rewrite.

On a non-mautrix note, Heisenbridge v1.15.3 was released recently with a crash fix. Updating is recommended ASAP.

Meowlnir

Meowlnir got a bunch of new commands like !send-as-bot for talking as the moderation bot, !redact-recent for redacting all recent messages, !powerlevel for modifying power levels, and more.

@nexy7574 also contributed support for automatic unbans when a ban policy is removed.

Meowlnir, my Synapse fork, and synapse-http-antispam now have support for an experimental join rule which can be used to block joins based on a policy list. The rule is fully compatible with all servers as it (ab)uses the existing restricted join rule mechanism. The only downside is that it centralizes all room joins to go through a single server.

gomuks web

Since last month, gomuks web has received a bunch of bugfixes, as well as a few new features. In particular, there's now a room creation dialog that allows customizing everything, support for room upgrades, and support for knocking on rooms. The last 2 features were contributed by @nexy7574.