What’s New in Red5 Pro v15.2.0 and Red5 HTML SDK v15.2.0?

Let’s take a look at the latest Red5 Pro and Red5 HTML SDK updates introduced since our previous blog covering Red5 Pro v15.1.2, Red5 iOS and Android SDK v2.0. The newest release, Red5 Pro v15.2.0, focuses on introducing features essential for AI-powered workflows and addressing existing bugs, while the Red5 HTML SDK v15.2.0 release delivers improved reliability, visibility, and control over WebRTC connections, along with easier integration with real-time data streaming services like PubNub.

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What’s New in Red5 Pro v15.2.0?

Announced on February 20, 2026, the Red5 Pro v15.2.0 update introduced the following bug fixes. 

New Features

• Ability to transcribe live streams using NVIDIA Parakeet. We mentioned how it can be used for instant speech-to-text generation for closed captioning in multilingual environments in our previous blog. 
• Frame Extractor available for AI integration.
• HTML SDK now includes Conference API and PubNub integration.
• Conference API now supports guest users.
• Added REST API for as-terraform.

Bug Fixes:

• Repaired default log rotation for Stream Manager services.
• Stream Manager nodes were sometimes slow to destroy.
• ICE failure in poor networks.
• Occasional timing errors in FLV recordings.
• Zixi push was not working in some circumstances.
• Brew mixer works in standalone deployment.
• Webhooks no longer fire prematurely on listener start.
• Transcoder upscaling works in Multi-Stream Manager setup.
• Webhooks now fire properly for publishers.

What’s New in Red5 HTML SDK v15.2.0?

Released on February 21, 2026, the Red5 HTML SDK v15.2.0 update includes the following bug fixes.

New Features

• PubNub Integration and introduction of PubNubClient.
• Connection health monitoring for WebRTC publishers and subscribers with automatic detection of stale stats, ICE state regression, excessive RTT, and ICE negotiation timeouts.
• Added new WebRTC connection health events: WebRTC.Connection.StaleStats, WebRTC.Connection.StateRegression, WebRTC.Connection.ExcessiveRTT, WebRTC.Connection.IceTimeout.
• renegotiationPolicy init configuration property for defining monitor and handling of ICE negotiation failures.

Bug Fixes:

• ICE configuration order preference.

Conclusion

Red5 Pro v15.2.0 and Red5 HTML SDK v15.2.0 continue Red5’s focus on fast, reliable, and interactive real-time video. The server release introduces new AI-ready capabilities such as live transcription and frame extraction, expands conferencing and infrastructure automation support, and resolves issues that improve overall system stability and deployment efficiency. The HTML SDK update strengthens WebRTC connection reliability with advanced health monitoring, new diagnostic events, and improved recovery controls, while also simplifying real-time data integration through PubNub. Together, these releases provide developers with a more robust, intelligent, and production-ready foundation for building scalable low-latency streaming, AI-enhanced workflows, and interactive applications across web and server environments.