Today, Apple is seeding release candidates for iOS 14.4, iPadOS 14.4, watchOS 7.3, tvOS 14.4, and macOS 11.2 Big Sur to developers. They're the next minor updates for each of Apple's platforms. In fact, these are actually even more minor than the previous ones, which were more along the lines of mid-stream feature updates.
For iOS 14.4, you can now scan smaller QR codes with the camera, and you can also now classify Bluetooth device types for headphones and such. Also, and this might be an issue for some, but you'll get a notification if your iPhone's camera isn't considered genuine if you're using a device from the iPhone 12 series. There are also fixes for image artifacts in HDR photos, the Fitness widget, and more.
Next up is watchOS 7.3, which includes a new Unity watch face. It's inspired by the Pan-African flag and changed throughout the day as you move, so the face is supposed to be unique to the user. There's a Time to Walk feature for Fitness+ users, which shares stories as you walk. ECG is and irregular heart rhythm notification notifications are now open to more regions including Japan, Mayotte, Phillippines, Taiwan, and Thailand. And of course, there are fixes.
There's not much going on with tvOS 14.4, but macOS 11.2 Big Sur has a few minor changes. It improves Bluetooth reliability, and has fixes for external displays, edits in Apple's ProRAW format, and more.
These are meant to be final builds unless there are any major issues found. They'll likely roll out to the general public next week.