Restream
Restream is building the production desk and the clip factory at the same time
A side-by-side editorial comparison of BigBlueButton and Webex — release velocity, themes, recent moves, and the top alternatives to consider.
BigBlueButton's 4.0 beta swaps out its own media stack — LiveKit is now the default, SIP.js is gone.
Two lines run in parallel. The stable 3.0 branch gets maintenance iterations every few weeks — security fixes, breakout-room and screenshare repairs, audio fixes against LiveKit — while 4.0 betas carry the structural work. The latest beta makes LiveKit the default media stack and deletes the legacy SIP.js audio bridge, replaces the shared notes engine with BlockNote, and moves the JVM services to Java 21. The layout system was rebuilt one beta earlier, with the Unified layout promoted to default.
The feed is a marketing blog; the actual GA announcements arrive between the thought leadership
Webex publishes through a corporate blog rather than a changelog, so award posts, customer stories and event promotion sit in the same stream as genuine availability announcements. The releases that do appear are enterprise-calling and contact-center milestones — Compliance Hub reaching general availability, Intrado emergency routing for Webex Calling — and they are easy to miss between the essays.
Two lines run in parallel. The stable 3.0 branch gets maintenance iterations every few weeks — security fixes, breakout-room and screenshare repairs, audio fixes against LiveKit — while 4.0 betas carry the structural work. The latest beta makes LiveKit the default media stack and deletes the legacy SIP.js audio bridge, replaces the shared notes engine with BlockNote, and moves the JVM services to Java 21. The layout system was rebuilt one beta earlier, with the Unified layout promoted to default.
This is a multi-year replacement of the plumbing under a conferencing platform, done in public and in order: introduce LiveKit alongside the old bridge, fix audio against it across 3.0 point releases, then cut the old path out in a 4.0 beta. The same pattern shows in the client — the Unified layout arrived opt-in in 3.0.19 and became the default in beta.3. Around the core swap, the surface is being tidied: app gallery search and pinning, notification redesign, a request-to-present flow, configurable plugin buttons.
With the legacy audio bridge removed and Java 21 in place, expect the remaining 4.0 betas to be stabilization rather than new subsystems, and expect self-hosters to hit LiveKit deployment issues that generate a run of point releases after 4.0 lands.
Webex publishes through a corporate blog rather than a changelog, so award posts, customer stories and event promotion sit in the same stream as genuine availability announcements. The releases that do appear are enterprise-calling and contact-center milestones — Compliance Hub reaching general availability, Intrado emergency routing for Webex Calling — and they are easy to miss between the essays.
Two threads run through the substantive posts: pushing AI from meeting features into operations, with Control Hub gaining AI-assisted administration and the contact center absorbing AI agents, and closing enterprise compliance gaps such as E911 routing and communications archiving. The AI Receptionist and AI Agents announcements earlier in the year set the direction; the current run is largely the supporting proof points.
Expect the next substantive posts to follow the same pattern of regional or regulatory availability milestones for calling and contact center, with WebexOne serving as the anchor for whatever AI agent announcements come next.
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 BigBlueButton or Webex.
Restream is building the production desk and the clip factory at the same time
HOMER 11's DuckLake rearchitecture is in its hardening phase, shipping near-daily.
mediasoup's Rust line is shipping subchannel fixes every few days and nothing else
One real release is buried in a feed that is mostly captured page furniture.
A daily drip of conference-platform polish, with finance filtering and attendee self-service leading.
Broadcast playout server reaches for HDR and sets a hardware floor to get there
See all BigBlueButton alternatives → · See all Webex alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. Webex is currently shipping more aggressively (velocity 5.0 vs 3.8), with 0 editorial sparks in the last 30 days against 1. 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. Webex is currently shipping more aggressively (velocity 5.0 vs 3.8), with 0 editorial sparks in the last 30 days against 1. For your specific use case, the alternatives sections above list other Meetings products to evaluate alongside.
Top BigBlueButton alternatives in Meetings are ranked by recent ship velocity. Browse the "BigBlueButton alternatives" section above for the current picks, or visit /alternatives/bigbluebutton for the full list with editorial commentary on each.
Top Webex alternatives in Meetings are ranked by recent ship velocity. Browse the "Webex alternatives" section above for the current picks, or visit /alternatives/webex for the full list with editorial commentary on each.