Apple VP Greg Joswiak teased upcoming M4 Mac launches in a social media post, encouraging fans to mark their calendars for the following week.Joswiak's tweet suggests that new announcements related to M4 Macs will be made starting from Monday morning.Apple is expected to use LTP03 display technology to improve power efficiency in upcoming M4 Macs.Additionally, Apple is introducing a new feature to iMessage in Australia that allows children to report nudity in images and videos.