Postmark
Postmark adds its own SOC 2 Type 2 report to a run of security work.
A side-by-side editorial comparison of NanoMQ and Rocket.Chat — release velocity, themes, recent moves, and the top alternatives to consider.
NanoMQ follows its hardening run by moving onto Zephyr microcontrollers.
NanoMQ 0.25.7, published on 21 October and described as a beta, runs on the Zephyr RTOS after platform-layer work on memory allocation for microkernel environments. It also pushes the multi-tenant mountpoint logic down into the transport layer, gives each bridge its own cache with REST control, lets operators kick clients by ID over the API, and supports PKCS#11 hardware keys with certificate-to-username mapping. 0.25.6 in August had been a protocol-conformance and auth-race fix release.
Rocket.Chat patches 8.9 LTS with the load fixes from 9.0 while the candidate reaches rc.7.
The 9.0 candidate line opened on 27 October with a licensing change: LDAP, SAML and Custom OAuth now require a premium plan. Since rc.4 the candidates have been fixes: rc.5 drops removed-license features for connected users and redacts OAuth codes from logs, rc.6 fixes Matrix federation auth, and rc.7 stops a web and desktop client memory leak and moves native LiveKit video to beta. On 6 November 8.9.1 LTS backported the notification, presence and startup load fixes plus a security hotfix.
NanoMQ 0.25.7, published on 21 October and described as a beta, runs on the Zephyr RTOS after platform-layer work on memory allocation for microkernel environments. It also pushes the multi-tenant mountpoint logic down into the transport layer, gives each bridge its own cache with REST control, lets operators kick clients by ID over the API, and supports PKCS#11 hardware keys with certificate-to-username mapping. 0.25.6 in August had been a protocol-conformance and auth-race fix release.
0.25.5 dropped MIPS and ARMel binaries to concentrate on correctness, and 0.25.6 spent that effort on MQTT conformance. 0.25.7 points the broker at smaller and more locked-down hardware instead: an RTOS target, hardware security modules and per-device certificate identity. That is a move toward embedded, fleet-managed deployments rather than gateway servers.
Expect follow-up 0.25.x releases fixing Zephyr-specific issues, since 0.25.7 is labelled a first beta. The SipHash client ID question raised in 0.25.2 still has no resolution in these entries.
The 9.0 candidate line opened on 27 October with a licensing change: LDAP, SAML and Custom OAuth now require a premium plan. Since rc.4 the candidates have been fixes: rc.5 drops removed-license features for connected users and redacts OAuth codes from logs, rc.6 fixes Matrix federation auth, and rc.7 stops a web and desktop client memory leak and moves native LiveKit video to beta. On 6 November 8.9.1 LTS backported the notification, presence and startup load fixes plus a security hotfix.
9.0 is in stabilization: each candidate is smaller than the last, and the load fixes are being carried to the LTS line rather than held for the major. Native LiveKit video is being promoted step by step, from alpha to beta and now as the named default provider option.
With rc.7 down to a handful of fixes, 9.0.0 GA is the next likely release, followed by further 8.9.x LTS patches carrying the same fixes.
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 NanoMQ or Rocket.Chat.
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See all NanoMQ alternatives → · See all Rocket.Chat alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. Rocket.Chat is currently shipping more aggressively (velocity 6.3 vs 2.5), with 0 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.
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Rocket.Chat is currently shipping more aggressively (velocity 6.3 vs 2.5), with 0 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.
Top NanoMQ alternatives in Comms are ranked by recent ship velocity. Browse the "NanoMQ alternatives" section above for the current picks, or visit /alternatives/nanomq for the full list with editorial commentary on each.
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.