iOS 26.4: Apple releases first beta focusing on RCS security and video podcasts

Apple surprisingly released the first beta of iOS 26.4 for developers this evening. The update focuses primarily on the security of cross-platform communication and a technical overhaul of the company's own Podcasts app, while one key core feature is still missing.
End-to-end encryption for RCS and enhanced theft protection
One of the key new features concerns the Messages app. Apple is implementing the following with iOS 26.4: End-to-end encryption (E2EE) for the RCS standard. This raises the level of security for communication between iPhones and Android devices, provided the other device also supports the current standard. Technically, this innovation is based on the RCS Universal Profile 3.0, which also enables advanced features such as editing messages and inline replies in chats with Android users.
At the same time, Apple is tightening security measures directly on the device. The well-known Protection for stolen devices Stolen Device Protection is permanently enabled by default in this version and can no longer be accidentally disabled. This underscores Apple's strategy of embedding critical security features more deeply within the system.
Apple Podcasts: A new era for video content thanks to HLS
Apple donated The podcast app has received a massive technical upgrade in the video area. Through the use of the HTTP Live Streaming (HLS)The technology is designed to make switching between audio and video tracks completely seamless. This opens up new possibilities for creators in controlling and monetizing their content, as the new standard also supports dynamic video ads.
Users proFeatures include higher streaming quality and the option to download video podcasts for offline use. Partners like Acast, SiriusXM, and Omny Studio are already working with the new format at the start of the beta phase. Apple is clearly aiming to establish the platform for video.proto make dozens more attractive in order to catch up with competitors like YouTube or Spotify.
Delays with AI Siri
Despite the high revision number, the information on the last WWDC There's still no sign of the announced, fundamentally redesigned Siri. iOS 26.4 was originally slated for the major rollout of the AI-powered assistant. tradedAccording to current insider assessments Mark Gurman However, significant problems with stability and processing speed persist.
While it's possible Apple will add more features during the beta phase, current indications point to a later release with iOS 26.5, or even not until summer. Apple might also use its upcoming event in March to further specify its roadmap for AI integration.
Availability and outlook
The first beta of iOS 26.4 (Build 23E5207q) is now available for registered developers to download. The public beta will follow in the next few days, based on past experience. The final version for all users is expected by the end of March or April 2026.