rtpengine
rtpengine backports the same DTLS and socket fixes across four maintenance branches at once.
A side-by-side editorial comparison of coturn and Kamailio — release velocity, themes, recent moves, and the top alternatives to consider.
coturn ships three minor versions in six weeks, packaged as Docker images on three registries.
The tracked feed for coturn, the open-source TURN/STUN server, is Docker image releases: 4.16.0, 4.17.0, 4.17.1, 4.17.2 and 4.18.0 between late July and early September 2026. Each is published to Docker Hub, GitHub Container Registry and Quay.io, and the release notes here point to the upstream changelog without listing changes.
Kamailio's tracked feed shows one thing: a quiet, schema-stable 5.8 maintenance release.
Kamailio is a mature open-source SIP server, and the only release on record here is v5.8.7, a maintenance drop on the 5.8 stable branch. It carries fixes since 5.8.6 with no database schema or configuration language changes, and upgrading is strongly recommended for 5.8.x deployments.
The tracked feed for coturn, the open-source TURN/STUN server, is Docker image releases: 4.16.0, 4.17.0, 4.17.1, 4.17.2 and 4.18.0 between late July and early September 2026. Each is published to Docker Hub, GitHub Container Registry and Quay.io, and the release notes here point to the upstream changelog without listing changes.
The cadence picked up: three minor versions (4.16, 4.17, 4.18) landed in about six weeks, with two same-day patch images for 4.17. The project keeps container packaging in lockstep with upstream releases, which matters to operators running TURN for WebRTC in containers.
A 4.18.x patch image or a 4.19.0 release is the likely next entry, following the observed roughly two-to-four-week rhythm; the feature content is not visible from these entries.
Kamailio is a mature open-source SIP server, and the only release on record here is v5.8.7, a maintenance drop on the 5.8 stable branch. It carries fixes since 5.8.6 with no database schema or configuration language changes, and upgrading is strongly recommended for 5.8.x deployments.
With a single maintenance entry, the visible pattern is conservative branch upkeep: fixes land without forcing operators to touch configs or schemas. The feed does not yet show new feature branches or capability shifts.
One entry is too little to call a next move; the only grounded expectation is further 5.8.x point releases on the same no-migration terms.
Other Meetings 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 coturn or Kamailio.
rtpengine backports the same DTLS and socket fixes across four maintenance branches at once.
OpenSIPS 4.0 is in release-candidate testing, with two RCs a month apart.
JW Player is rebuilding its VOD pipeline around CMAF, one workflow fix at a time
Restream's webinars get a registration page and a CSV of leads, turning broadcasts into a pipeline
BigBlueButton 4.0 rc.4 is a security-only release as the LiveKit stack hardens.
Fourwaves is polishing participant messaging after a pricing reset.
See all coturn alternatives → · See all Kamailio alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. coturn is currently shipping more aggressively (velocity 2.5 vs 0.0), 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. coturn is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Meetings products to evaluate alongside.
Top coturn alternatives in Meetings are ranked by recent ship velocity. Browse the "coturn alternatives" section above for the current picks, or visit /alternatives/coturn for the full list with editorial commentary on each.
Top Kamailio alternatives in Meetings are ranked by recent ship velocity. Browse the "Kamailio alternatives" section above for the current picks, or visit /alternatives/kamailio for the full list with editorial commentary on each.