Labels

Synapse's logs (structured or otherwise). Not metrics.

Issues related to enforcing usage limits according to the number of monthly active users.

Uploading, downloading images and video, thumbnailing

Issues related to Synapse's support of MSC1763 (message retention policies)

Searching messages

/messages client API endpoint (`RoomMessageListRestServlet`) (which also triggers /backfill)

metrics, measures, stuff we put in Prometheus

Tools for moderating HSes: event redaction, media removal, purge admin API, reports from users, ...

Module API: https://matrix-org.github.io/synapse/latest/modules/index.html

Our Debian packages, docker images; or issues relevant to downstream packagers

Performance, both client-facing and admin-facing

Script for exporting sqlite data into postgres

Displaynames, avatars

Issues related to push/notifications

Creating an account

/relations

Retention rules to delete messages after a certain amount of time

Related to textual search of something, be it rooms, users or messages.

Login via external identity providers

Hierarchical organization of rooms

places where synapse does not conform to the spec