iOS 27 Developer Beta 4 has some nice little tweaks, please take a look

Apple has just released iOS 27 Developer Beta 4. Although this time there are not too many big changes like previous beta versions, I see that the company still quietly tweaks a few interesting small details. The point that caught my attention the most was the leaked code mentioning an iPhone model with two batteries. Most likely, this is a preparation step for the folding screen iPhone Ultra that everyone is waiting for. Regarding daily experience, the Apple TV application now has the option to automatically download the next 2 episodes of the movie you are watching and automatically discharge memory when finished watching.

In the Photos section, the "Zoom Photos to Fill" feature is enabled by default to slightly enlarge the image to fit the screen. '

Notably for those who often shoot videos, the Camera section when turning on Apple ProRes allows you to choose between regular Log and Log 2 format. I appreciate Log 2 because it retains more image information, making post-production color correction more flexible.

Siri has also refined the voice selection interface, adjusting the preview length to a maximum of 5 lines and adding a line to display text of what you say in the Accessibility section. Some models such as iPhone 17 Pro, 17 Pro Max or iPhone Air will have new voice options. Unfortunately, the wallpaper separation feature in Notification Center from beta 3 has been removed. In addition, the AirPods interface in the Control Center looks more compact with many options for Adaptive mode, and Wi-Fi Assist can now be turned on and off flexibly for each individual network.

Overall, this is a familiar completion step for the operating system to be ready for official launch next September. Have you tried beta version 4 yet?