Apple has recently released the fourth developer betas of iOS 14, iPadOS 14, watchOS 7, tvOS 14 & macOS Big Sur to registered developers.
The build numbers for the releases are:
iOS & iPadOS 14 – 1418A5342e
macOS Big Sur – 20A5343i
watchOS 7 – 18R5350e
tvOS 14 – 18J5354d
Here is what’s new in the latest beta of macOS Big Sur: 4K HDR playback of YouTube videos is now supported in Safari and the App Store bug preventing users opening their applications has been resolved.
On iOS 14 & iPadOS 14. 3D touch functionality is now restored for devices with 3D touch, Exposure Notifications are now available, performance and battery life improvements, and bug fixes.
On watchOS 7, VoiceOver is temporarily unavailable, Apple recommends you do not proceed with the update if you rely on VoiceOver. A known issue on the Series 3 is the inability to update to beta 4 due to limited storage, which can be resolved by unpaired and performing the update during setup.
On tvOS 14, a known issue affecting AVKit where a full-screen AirPlay video may unexpectedly dismiss after pausing or finishing a picture in picture session and Face Recognition in HomeKit is now reliable.
To install the update, you will need a compatible Apple device with Apple’s Developer profile installed. iOS & iPadOS 14 supports all devices which are able to run iOS 13. watchOS 7 is compatible with the Apple Watch Series 3, 4 & 5. macOS Big Sur is compatible with the MacBook (2015 and later), MacBook Air (2013 and later), MacBook Pro (Late 2013 and later), Mac mini (2014 and later), iMac (2014 and later), iMac Pro (2017 and later) andMac Pro (2013 and later). tvOS 14 is compatible with the 4th and 5th generation Apple TV.