Search results

Report the rust compiler version used in the prometheus metrics

A-Metrics

good first issueThis is a fix that might be an easy place for someone to start for their first contributionThis is a fix that might be an easy place for someone to start for their first contribution

T-Task

Status: Open.

#19403 In element-hq/synapse;

· anoadragon453 opened on Jan 22, 2026

Synapse causes deadlock when racing server key lookup

A-Database

A-Validation

O-Occasional

S-Major

T-Defect

Status: Open.

#19401 In element-hq/synapse;

· ll-SKY-ll opened on Jan 22, 2026

Add support for real high availability - make the main synapse process literally redundant

Status: Open.

#19397 In element-hq/synapse;

· telmich opened on Jan 21, 2026

Synapse fails to start after update to v1.145.0 with TypeError in start_http_server_prometheus

Status: Open.

#19396 In element-hq/synapse;

· rda0 opened on Jan 21, 2026

The <code>/health</code> resource allows for path traversal

Status: Open.

#19395 In element-hq/synapse;

· gaelgatelement opened on Jan 20, 2026

Less than intermittent federation connection failures

Status: Open.

#19393 In element-hq/synapse;

· nexy7574 opened on Jan 19, 2026

Memory Leak because one client sends 20Hz requests to POST <code>client/v3/keys/upload</code>. One time key signed_curve25519:AAAAAAAAAFA already exists

Status: Open.

#19392 In element-hq/synapse;

· leofah opened on Jan 19, 2026

Message delivery to matrix.org is extremely unreliable (messages do not send, appear as empty on clients)

Status: Open.

#19389 In element-hq/synapse;

· c-x-berger opened on Jan 17, 2026

The documentation doesn't mention that <code>matrix_rtc</code> only works when msc4143_enabled is enabled.

A-Docs

Status: Open.

#19386 In element-hq/synapse;

· Half-Shot opened on Jan 16, 2026

Remove duplicate implementations of "who can invite" logic

A-Invite

good first issueThis is a fix that might be an easy place for someone to start for their first contributionThis is a fix that might be an easy place for someone to start for their first contribution

T-Task

Status: Open.

#19374 In element-hq/synapse;

· MadLittleMods opened on Jan 13, 2026

Rejected history visibility events are still referenced

Status: Open.

#19373 In element-hq/synapse;

· velikopter opened on Jan 13, 2026

<code>register_new_matrix_user</code> script fails if homeserver uses UNIX socket listener

A-Registration

T-Defect

Status: Open.

#19370 In element-hq/synapse;

· really-not-lavacat opened on Jan 12, 2026