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Encryption on metadata

Status: Open.

#20242 In element-hq/synapse;

· Thatoo opened on Sep 18, 2026

[Epic] Efficient Server Announcements

A-Admin-API

T-Enhancement

Status: Open.

#20240 In element-hq/synapse;

· anoadragon453 opened on Sep 18, 2026

Sliding sync: ForeignKeyViolation on sliding_sync_connection_room_configs_required_state_id_fkey (the only non-cascading FK in that table group)

Status: Open.

#20234 In element-hq/synapse;

· vkrmch opened on Sep 17, 2026

How to improve message search

A-Message-Search

A-Search

Status: Open.

#20223 In element-hq/synapse;

· shining opened on Sep 15, 2026

Stuck room: cannot leave (silently fails), cannot rejoin (403 duplicate auth_events), admin kick also fails

Status: Open.

#20222 In element-hq/synapse;

· xenomorphpt opened on Sep 15, 2026

Validate MSC4426 User Status profile fields

A-Profiles

S-Minor

Z-Unimplemented-MSCs

Status: Open.

#20206 In element-hq/synapse;

· jaywink opened on Sep 10, 2026

MSC4536 endpoints to fetch many profiles at once

A-Profiles

A-Sync

Z-Unimplemented-MSCs

Status: Open.

#20197 In element-hq/synapse;

· jaywink opened on Sep 8, 2026

Unhandled IndexError in guest-macaroon auth path returns 500 instead of 401 for tokens that base64-decode to empty

A-Validation

T-Defect

Status: Open.

#20188 In element-hq/synapse;

· KITLAB13 opened on Sep 5, 2026

Worker-mode redis/replication connection fails on IPv6-only (AAAA-only) hosts — txredisapi resolver is IPv4-only

A-Workers(includes replication)(includes replication)

Status: Open.

#20184 In element-hq/synapse;

· ixcans opened on Sep 3, 2026

URL preview accepts any URI scheme and returns 500 with an internal TypeError

A-URL-Preview

Status: Open.

#20179 In element-hq/synapse;

· syphernl opened on Sep 3, 2026

Leave request rejected for an invited user (race condition?)

A-Create-Room

A-Invite

A-Leave

A-State-Resolution

T-Defect

Status: Open.

#20139 In element-hq/synapse;

· timofej673 opened on Aug 24, 2026

Experimental support for MSC4502: Targeted and unrestricted room member queries

T-ExperimentalFeatureTracking issues for experimental features in SynapseTracking issues for experimental features in Synapse

Status: Open.

#20118 In element-hq/synapse;

· Johennes opened on Aug 17, 2026