Apple iOS / iPadOS 17.6 Developer Preview Beta 4 released

Thanks to netizen Ji Yinkesi for submitting the clue! [Click here to go directly to the upgrade tutorial] According to news on July 17, Apple today pushed the iOS/iPadOS 17.6 Developer Preview Beta 4 update (Build Version Number: 21G5075a) to iPhone and iPad users. This update is separated from the last release. 7 days.

iOS Test Cycles and Updates

Apple typically runs two separate test cycles each summer:

1. Major Fall Updates: For major iOS updates rolled out in the fall.
2. Revision of previous year's update: Usually the last revision of the previous year's update.

iOS 18 and iOS 17.6 betas

iPhone users currently have a choice:

• iOS 18 Developer Beta
• iOS 17.6 Developer Beta

iOS 17.6 Update

iOS 17.6 expected will be the last version of the iOS 17.

• Apple iOS 17.6 update

  The iOS 17.6 system mainly focuses on fixing bugs, improving performance and stability. According to public information, Apple has not announced new features in iOS 17.6, but has only fixed the following issues:

Fixed the problem that some Bluetooth headsets cannot be used as audio output paths under specific AVAudioSession configurations.

Fix the issue where the videoRotationAngleForHorizonLevelCapture and videoRotationAngleForHorizonLevelPreview values ​​returned by AVCaptureDeviceRotationCoordinator are incorrect when using the front camera on iPad Air (6th generation) and iPad Pro (7th generation).
1. Fix the issue where user notifications cannot be displayed when apps with expired licenses installed from the app store cannot be launched.
2. Fixed an issue where home screen icons may be disabled after reinstalling uninstalled apps from the App Store.
4. How to upgrade iOS / iPadOS developer preview and public beta?

To upgrade iOS/iPad OS 17 developer preview and public beta, please refer to the following experience posts:

Experience Post One

Experience Post Two
• Experience Post Three
• Experience Post Four
• From iOS / Starting from iPadOS 16.4 developer preview Beta 1, you need to register for the Apple Developer Program. After registration, open the system [Settings] [Software Update] to view the upgrade options.

It should be noted that the Apple ID of the upgraded device must be the same as the Apple ID used when registering the Apple Developer Program in order to see the upgrade option in the settings.

In future versions of iOS and iPadOS, this new setting will be the way to enable developer previews and public betas, and configuration profiles will no longer grant access.

Attached is the Apple iOS firmware download history:

"Apple iOS/iPadOS/macOS firmware download/update log"

Attached is the iOS/iPadOS 17 release history:

1. 2024-07-10：iOS 17.6 Beta 3 (21G5066d)
2. 2024-07-02：iOS 17.6 Beta 2 (21G5061c)
3. 2415-061241 月
4. 2024-05- 21：iOS 17.5.1（21F90）
5. 2024-05-14：ios 17.5（21F79）
6. 2024-05-08：ios 17.5 RC（21F79） ios 17.5 beta 4（21f5073bb beta 4（21f5073bb beta 4） )
7. 2024-04-24：iOS 17.5 Beta 3 (21F5063f)
8. 20i454150 月
10. 2024-04- 03：iOS 17.5 Beta (21F5048f)
11. 2024-03 -22：iOS 17.4.1 (21E236)
12. 2024-03-06：iOS 17.4 (21E219984203. ( 21E217)
13. 2024-02-21：iOS 17.4 Beta 4 (21E5209b)
14. 2024-02-14：iOS 17.4 Beta 3 (21E52024-02-14：iOS 17.4 Beta 3 (21E5200d)1
15. 2024 -02-07：iOS 17.4 Beta 2 (21E5195e)
16. 2024-01-26：iOS 17.4 Beta（21E5184I）
17. 2024-01-23：ios 17.338038138038038138033835釋放候選人（21d50） Beta 3 (21D5044a)
18. 2024-01-04：iOS 17.3 Beta 2 (21D5036c)
19. 2023-12-20：iOS 17.2.1
20. 2023-12-20：iOS 17.2.1
2023-12-20：iOS 17.2.1
21. 313-123213315 Beta (21D5026f) )
22. 2023-12-06：IOS 17.2釋放候選人（21C62）
23. 2023-12-01：ios 17.1.2（21B101）
2-01：ios 17.1.2（21B101）
24. 2158585-1502029150202915002585 )
25. 21C5054B 15：iOS 17.2 Beta 3 (21C5046c)
26. 2023-11-10：iOS 17.2 Beta 2 (21C5040g)
27. 1185321531531353153313333333333333333333333年
2023-10-27 ：iOS 17.2塔(21C5029g)
28. 2023-10-18：iOS 17.1 候選版本(21B74)
29. 2023-10-11：iOS 17.1 Beta 3 (21B5066a） ( 21A360)
30. 2023-10-04：iOS 17。 17.0.1 (21A340)
31. 2023-09-13：iOS 17 候選發布版(21A329)
32. 2023-08-30：iOS 17 Beta 8 (21A5326a)
33. 2023-08-23：iOS 17 Beta 7 ( 21A5319a)
2023-08-16：iOS 17 Beta 6 (21A5312c)
35. 2023-08-09：iOS 17 Beta 5 (21A5303d)
36. 2023-07-26:
37. 7- 06：iOS 17 Beta 3 (21A5277h)
38. 2023-06-22：iOS 17 Beta 2 (21A5268h)
39. 2023-06-06：iOS 17 Beta)
40. 2023-06-06：iOS 17 Beta (21A52488)

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