0, described as the protocol's biggest upgrade to date. The key feature is built-in support for video calls, allowing individual chats or group conversations to quickly switch from text to video. According to the announcement, Messaging-Initiated Video Calls (MIVC) will be the first interoperable video calling experience across various devices and networks.
0 also offers text formatting support for bold, italic, and strikethrough text, and sent videos, images, and audio files may have higher quality due to optimized encoding. The new features are not expected to appear in smartphones immediately.