Element
Element 1.12.34 RC pops calls into picture-in-picture and lets modules shut off public rooms.
Comparison · Comms
Rocket.Chat vs Synapse
A side-by-side editorial comparison of Rocket.Chat and Synapse — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:self-hosted
Rocket.Chat vs Synapse: at a glance
What is Rocket.Chat?
Rocket.Chat 9.0 puts LDAP, SAML and Custom OAuth behind a plan and removes seven logins.
The 9.0 candidate line opened on 27 October, and its lead is a licensing change: LDAP, SAML and Custom OAuth now require a premium plan, and seven login providers are removed, including Facebook, LinkedIn and X. rc.0 also drops anonymous write, the Atlassian Crowd integration, Gravatar and the raw MongoDB query parameters, while rc.3 moves REST refusals to a single 403 shape. 8.9.0 LTS, dated 5 October, is supported until 31 October 2027.
What is Synapse?
Synapse 1.164 advertises Matrix v1.16 and v1.17 amid a run of dependency security patches
Synapse keeps its two-to-three-week cycle of candidates and stables. 1.164.0 went stable on 27 October with support for Matrix v1.16 and v1.17 and a dedicated endpoint for scheduling delayed events (MSC4140). The surrounding releases are security dependency bumps: certifi, a rustls-webpki update that distrusts the compromised eMudhra intermediate CAs, Pillow 13.0.0 for critical image-handling flaws, and msgpack against memory exhaustion on the public room list.
Rocket.Chat vs Synapse: editorial side-by-side
Rocket.Chat
6.3COMMS
Rocket.Chat 9.0 puts LDAP, SAML and Custom OAuth behind a plan and removes seven logins.
◆ Current state
The 9.0 candidate line opened on 27 October, and its lead is a licensing change: LDAP, SAML and Custom OAuth now require a premium plan, and seven login providers are removed, including Facebook, LinkedIn and X. rc.0 also drops anonymous write, the Atlassian Crowd integration, Gravatar and the raw MongoDB query parameters, while rc.3 moves REST refusals to a single 403 shape. 8.9.0 LTS, dated 5 October, is supported until 31 October 2027.
◆ Where it's heading
Calling keeps maturing on its own track: rc.1 adds a noise cancellation choice to native LiveKit calls, with RNNoise served by the workspace itself. The bigger change sorts the install base. Community workspaces keep local login plus Google, GitHub, GitLab, Apple and Nextcloud, while directory sign-in moves to paid plans, with a free Starter plan for eligible organizations of up to 50 users. The rest of 9.0 reads as a clean-up, collecting deprecations announced in 8.9 and breaking REST clients that read the old error codes.
◆ Prediction
Expect more fix-and-bump candidates before 9.0.0 goes final, since rc.2 was a bare bump and rc.3 is mostly error-shape changes. How many Community workspaces hit the login change at upgrade is unclear; the notes already point admins to recovery steps.
Synapse
5.0COMMS
Synapse 1.164 advertises Matrix v1.16 and v1.17 amid a run of dependency security patches
◆ Current state
Synapse keeps its two-to-three-week cycle of candidates and stables. 1.164.0 went stable on 27 October with support for Matrix v1.16 and v1.17 and a dedicated endpoint for scheduling delayed events (MSC4140). The surrounding releases are security dependency bumps: certifi, a rustls-webpki update that distrusts the compromised eMudhra intermediate CAs, Pillow 13.0.0 for critical image-handling flaws, and msgpack against memory exhaustion on the public room list.
◆ Where it's heading
The homeserver tracks the spec closely, stabilising MSCs as they land in Matrix releases, while backporting each security bump to the previous stable line. Sticky Events and User Status work suggest continued alignment with newer client features.
◆ Prediction
1.165 release candidates should follow within about two weeks, likely with further MSC stabilisations.
Alternatives to Rocket.Chat and Synapse
Other Comms products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Rocket.Chat or Synapse.
Subsplash
Subsplash gives church staff notes on every person and every Workflow card.
Maddy
maddy's latest release is a security fix, five months after its last feature work.
Grain
Grain adds consent controls and rule-based privacy as its meeting data reaches more AI tools.
Converse.js
Converse.js 14.0.1 fixes OMEMO:2 group decryption broken by Chromium 153.
Element iOS
Element Classic now asks its own users to move to Element X, if their server opts in.
See all Rocket.Chat alternatives → · See all Synapse alternatives →
Recent activity from Rocket.Chat and Synapse
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoSynapseSynapse 1.164.2 patch release
- 3d agoRocket.Chat9.0 rc.3: REST refusals become 403; /hooks status codes change
- 5d agoRocket.Chat9.0 rc.2: version bump only
- 6d agoSynapseSynapse 1.164.1: msgpack memory-exhaustion fix, status clearing
- 6d agoRocket.Chat9.0 rc.1: noise cancellation choice for LiveKit calls
- 7d agoRocket.Chat9.0 rc.0: LDAP, SAML and Custom OAuth become premium-only ⚡
- 7d agoSynapseSynapse 1.164.0: Matrix v1.16/v1.17 support goes stable
- 11d agoSynapseSynapse 1.164.0rc3: Pillow 13 security bump
- 11d agoSynapseSynapse 1.163.2: Pillow critical security backport
- 12d agoSynapseSynapse 1.164.0rc2: certificate trust updates
- 26d agoRocket.Chat8.9.0 LTS: 12-month support, Deno removed, hybrid AI Search
- 1mo agoRocket.Chat8.9 rc.5: version bump only
Frequently asked questions
What is the difference between Rocket.Chat and Synapse?
Both compete on the same themes — self-hosted — within Comms. Rocket.Chat is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Rocket.Chat better than Synapse?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Rocket.Chat is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Comms products to evaluate alongside.
What are the best alternatives to Rocket.Chat?
Top Rocket.Chat alternatives in Comms are ranked by recent ship velocity. Browse the "Rocket.Chat alternatives" section above for the current picks, or visit /alternatives/rocketchat for the full list with editorial commentary on each.
What are the best alternatives to Synapse?
Top Synapse alternatives in Comms are ranked by recent ship velocity. Browse the "Synapse alternatives" section above for the current picks, or visit /alternatives/synapse for the full list with editorial commentary on each.