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Synapse

COMMS
Velocity5.0

Open-source Matrix homeserver for secure decentralized real-time messaging

element.io ↗

Synapse maintains its reliable biweekly release cadence with stable v1.159 and v1.160 following a multi-fix security release in v1.157.2.

matrix-protocolhomeserversecurity-fixesopen-federationself-hostedrelease-cadence
◆Current state
Synapse (Matrix homeserver, maintained by Element) follows a disciplined release cadence: RC1 → RC2 → stable, cycling approximately every two weeks. The most operationally significant recent event was v1.157.2 — a dedicated security release patching four high-severity and multiple moderate/low-severity vulnerabilities, with explicit guidance for open-federation homeservers to upgrade promptly. Subsequent v1.158–v1.160 releases continue the regular cadence; changelogs are externally hosted on GitHub.
◆Where it's heading
Synapse's changelog pattern reflects a mature, infrastructure-grade project prioritizing stability and security over feature velocity. The security release cadence (v1.157.2 dropped between regular stable releases) suggests the security team is actively monitoring CVEs in the federated deployment context. Without changelogs embedded in entries, the magnitude of each stable release is hard to assess, but the rhythm itself signals a team focused on operational reliability.
◆Prediction
v1.161.0 stable (currently in RC) will follow the same pattern; the next meaningful development to watch is whether Element ships any MLS (Messaging Layer Security) or MIMI (More Instant Messaging Interoperability) progress in the v1.16x range.

◆Recent moves

  1. 7d ago

    Synapse v1.161.0 Release Candidate 1

    v1.161.0rc1 is a release candidate in the standard biweekly cycle — pre-release testing stage, not a stable deploy target for production homeservers.

    View source ↗
  2. 13d ago

    Synapse v1.160.0 stable release

    v1.160.0 is the stable release completing the biweekly cycle — the recommended production target following two RCs; specific changes require reviewing the linked GitHub changelog.

    View source ↗
  3. 15d ago

    Synapse v1.160.0 Release Candidate 2

    v1.160.0rc2 is the second and final release candidate before the v1.160.0 stable drop — pre-release validation, no new production-facing changes.

    View source ↗
  4. 21d ago

    Synapse v1.160.0 Release Candidate 1

    v1.160.0rc1 opens the v1.160 release cycle — first RC, testing phase only.

    View source ↗
  5. 28d ago

    Synapse v1.159.0 stable release

    v1.159.0 is the stable release closing the previous biweekly cycle — production-ready, with full details in the linked GitHub CHANGES.md.

    View source ↗
  6. 1mo ago

    Synapse v1.159.0 Release Candidate 1

    v1.159.0rc1 is the first release candidate for the v1.159 cycle — pre-release only.

    View source ↗